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  • Energy Research

  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Ndeye Seynabou Diouf; Issa Ouedraogo; Robert B. Zougmoré; Mathieu Ouedraogo; +2 Authors

    In the context of climate change, climate variability has become a major issue in recent years in sub-Saharan countries. Climate information services (CIS) could be a vital resort for African produ...

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CGIAR CGSpace (Consu...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Gender Technology and Development
    Article . 2019 . Peer-reviewed
    License: CC BY NC ND
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Gender Technology and Development
    Article
    License: CC BY NC ND
    Data sources: UnpayWall
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CGIAR CGSpace (Consu...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Gender Technology and Development
      Article . 2019 . Peer-reviewed
      License: CC BY NC ND
      Data sources: Crossref
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Gender Technology and Development
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      License: CC BY NC ND
      Data sources: UnpayWall
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Pramod Aggarwal; Andy Jarvis; Bruce M. Campbell; Robert B. Zougmoré; +21 Authors

    L'augmentation des risques météorologiques menace les systèmes de production agricole et la sécurité alimentaire dans le monde entier. Maintenir la croissance agricole tout en minimisant les chocs climatiques est crucial pour construire un système de production alimentaire résilient et atteindre les objectifs de développement dans les pays vulnérables. Les experts ont proposé plusieurs interventions technologiques, institutionnelles et politiques pour aider les agriculteurs à s'adapter à la variabilité climatique actuelle et future et à atténuer les émissions de gaz à effet de serre (GES). Ce document présente le village intelligent face au climat (CSV) comme moyen d'effectuer de la recherche agricole pour le développement qui teste de manière robuste les options technologiques et institutionnelles pour faire face à la variabilité climatique et au changement climatique dans l'agriculture en utilisant des méthodes participatives.Il vise à étendre et à étendre les options appropriées et à tirer des leçons pour les décideurs politiques du niveau local au niveau mondial.L' approche intègre l'évaluation des technologies, des pratiques, des services et des processus climato-intelligents pertinents pour la gestion des risques climatiques locaux et identifie les possibilités de maximiser les gains d'adaptation des synergies entre les différentes interventions et de reconnaître les mésadaptations et les compromis potentiels.Il veille à ce que ceux-ci soient alignés sur les connaissances locales et liés aux plans de développement.Ce document décrit les premiers résultats en Asie., l'Afrique et l'Amérique latine pour illustrer différents exemples de l'approche CSV dans divers contextes agroécologiques. Les résultats des études initiales indiquent que l'approche CSV a un fort potentiel pour étendre les technologies, les pratiques et les services agricoles climato-intelligents prometteurs. Les études analogiques climatiques indiquent que les leçons apprises sur les sites CSV seraient pertinentes pour la planification de l'adaptation dans une grande partie des terres agricoles mondiales, même dans les scénarios de changement climatique. Les principaux obstacles et possibilités de travail ultérieur sont également discutés. El aumento de los riesgos climáticos amenaza los sistemas de producción agrícola y la seguridad alimentaria en todo el mundo. Mantener el crecimiento agrícola y minimizar los impactos climáticos es crucial para construir un sistema de producción de alimentos resiliente y cumplir los objetivos de desarrollo en los países vulnerables. Los expertos han propuesto varias intervenciones tecnológicas, institucionales y políticas para ayudar a los agricultores a adaptarse a la variabilidad climática actual y futura y mitigar las emisiones de gases de efecto invernadero (GEI). Este documento presenta la aldea climáticamente inteligente (CSV) como un medio para realizar investigación agrícola para el desarrollo que pruebe de manera sólida las opciones tecnológicas e institucionales para hacer frente a la variabilidad climática y el cambio climático en la agricultura utilizando métodos participativos. Su objetivo es ampliar y ampliar las opciones apropiadas y extraer lecciones para los responsables de la formulación de políticas a nivel local y global. El enfoque incorpora la evaluación de tecnologías, prácticas, servicios y procesos climáticamente inteligentes relevantes para la gestión local del riesgo climático e identifica oportunidades para maximizar los beneficios de adaptación de las sinergias en diferentes intervenciones y reconocer posibles inadaptaciones y compensaciones. Se asegura de que estén alineados con el conocimiento local y se vinculen con los planes de desarrollo. Este documento describe los primeros resultados en Asia, África y América Latina para ilustrar diferentes ejemplos del enfoque CSV en diversos entornos agroecológicos. Los resultados de los estudios iniciales indican que el enfoque CSV tiene un alto potencial para ampliar las prometedoras tecnologías, prácticas y servicios agrícolas climáticamente inteligentes. Los estudios analógicos climáticos indican que las lecciones aprendidas en los sitios CSV serían relevantes para la planificación de la adaptación en una gran parte de las tierras agrícolas mundiales, incluso en escenarios de cambio climático. También se discuten las barreras clave y las oportunidades para seguir trabajando. Increasing weather risks threaten agricultural production systems and food security across the world.Maintaining agricultural growth while minimizing climate shocks is crucial to building a resilient food production system and meeting developmental goals in vulnerable countries.Experts have proposed several technological, institutional, and policy interventions to help farmers adapt to current and future weather variability and to mitigate greenhouse gas (GHG) emissions.This paper presents the climate-smart village (CSV) approach as a means of performing agricultural research for development that robustly tests technological and institutional options for dealing with climatic variability and climate change in agriculture using participatory methods.It aims to scale up and scale out the appropriate options and draw out lessons for policy makers from local to global levels.The approach incorporates evaluation of climate-smart technologies, practices, services, and processes relevant to local climatic risk management and identifies opportunities for maximizing adaptation gains from synergies across different interventions and recognizing potential maladaptation and trade-offs.It ensures that these are aligned with local knowledge and link into development plans.This paper describes early results in Asia, Africa, and Latin America to illustrate different examples of the CSV approach in diverse agroecological settings.Results from initial studies indicate that the CSV approach has a high potential for scaling out promising climate-smart agricultural technologies, practices, and services.Climate analog studies indicate that the lessons learned at the CSV sites would be relevant to adaptation planning in a large part of global agricultural land even under scenarios of climate change.Key barriers and opportunities for further work are also discussed. تهدد مخاطر الطقس المتزايدة أنظمة الإنتاج الزراعي والأمن الغذائي في جميع أنحاء العالم. يعد الحفاظ على النمو الزراعي مع تقليل الصدمات المناخية أمرًا بالغ الأهمية لبناء نظام إنتاج غذائي مرن وتحقيق الأهداف الإنمائية في البلدان المعرضة للخطر. اقترح الخبراء العديد من التدخلات التكنولوجية والمؤسسية والسياساتية لمساعدة المزارعين على التكيف مع تقلبات الطقس الحالية والمستقبلية والتخفيف من انبعاثات غازات الدفيئة. تعرض هذه الورقة القرية الذكية مناخيًا (CSV) نهج كوسيلة لإجراء البحوث الزراعية من أجل التنمية التي تختبر بقوة الخيارات التكنولوجية والمؤسسية للتعامل مع التقلبات المناخية وتغير المناخ في الزراعة باستخدام الأساليب التشاركية. ويهدف إلى توسيع نطاق الخيارات المناسبة وتوسيع نطاقها واستخلاص الدروس لصانعي السياسات من المستويات المحلية إلى العالمية. يتضمن النهج تقييم التقنيات والممارسات والخدمات والعمليات الذكية مناخياً ذات الصلة بإدارة المخاطر المناخية المحلية ويحدد فرص تحقيق أقصى قدر من مكاسب التكيف من أوجه التآزر عبر التدخلات المختلفة والاعتراف بسوء التكيف والمقايضات المحتملة. ويضمن توافقها مع المعرفة المحلية وربطها بخطط التنمية. تصف هذه الورقة النتائج المبكرة في آسيا وأفريقيا وأمريكا اللاتينية لتوضيح أمثلة مختلفة لنهج CSV في بيئات زراعية إيكولوجية متنوعة. تشير نتائج الدراسات الأولية إلى أن نهج CSV لديه إمكانات عالية لتوسيع نطاق التقنيات والممارسات والخدمات الزراعية الواعدة الذكية مناخياً. تشير الدراسات التناظرية المناخية إلى أن الدروس المستفادة في مواقع CSV ستكون ذات صلة بتخطيط التكيف في جزء كبير من الأراضي الزراعية العالمية حتى في ظل سيناريوهات تغير المناخ. كما تتم مناقشة الحواجز الرئيسية وفرص المزيد من العمل.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ The University of Ve...arrow_drop_down
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    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Ecology and Society
    Article . 2018 . Peer-reviewed
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Ecology and Society
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    License: CC BY
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    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Ecology and Society
    Article . 2018
    Data sources: DOAJ
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    https://dx.doi.org/10.60692/hm...
    Other literature type . 2018
    Data sources: Datacite
    https://dx.doi.org/10.60692/qn...
    Other literature type . 2018
    Data sources: Datacite
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ The University of Ve...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Ecology and Society
      Article . 2018 . Peer-reviewed
      Data sources: Crossref
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Ecology and Society
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      Ecology and Society
      Article . 2018
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      https://dx.doi.org/10.60692/hm...
      Other literature type . 2018
      Data sources: Datacite
      https://dx.doi.org/10.60692/qn...
      Other literature type . 2018
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Samuel Partey; Robert Zougmoré; Mathieu Ouédraogo; Naresh Thevathasan;

    In the literature, a lot is discussed about how agroforestry can achieve the mitigation, adaptation and productivity goals of climate-smart agriculture (CSA). However, this may be relatively too broad to assess the trade-offs and synergies of how specific agroforestry technologies or practices achieve the three pillars of CSA. Here, we provide an overview of how improved fallows (an agroforestry technology consisting of planting mainly legume tree/shrub species in rotation with cultivated crops) may achieve the goals of climate-smart agriculture in Sub-Saharan Africa (SSA). Our review showed that improved fallow systems have real potential to contribute to food security and climate change mitigation and adaptation in SSA. Under proper management, improved fallows can increase maize yields to about 6 t ha−1, which is comparable to conventional maize yields under fertilization. This is attributed to improved soil fertility and nutrient use efficiency. Although data was generally limited, the growing literature showed that improved fallows increased soil carbon sequestration and reduced greenhouse emissions. Further, as a multiple output land use system, improved fallows may increase fodder availability during dry periods and provide substantial biomass for charcoal production. These livelihood options may become important financial safety nets during off seasons or in the event of crop failures. This notwithstanding, the adoption of improved fallows is mainly in Southern and Eastern Africa, where over 20,000 farmers are now using Sesbania sesban, Tephrosia vogelii, and Cajanus cajan in two-year fallows followed by maize rotations. Land tenure issues, lack of social capital, and improved germplasm and accessions of fallow species have been cited as constraints to scaling up. However, development of seed orchards, nursery development, and the willingness of policy makers to create a policy environment that addresses market failures and alleviates disincentives should improve adoption and future scaling up.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CGIAR CGSpace (Consu...arrow_drop_down
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    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Sustainability
    Article . 2017 . Peer-reviewed
    License: CC BY
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Sustainability
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    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Sustainability
    Article . 2017
    Data sources: DOAJ
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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      Sustainability
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    Authors: Mathieu Ouédraogo; Robert B. Zougmoré; Abdoulaye S. Moussa; Samuel T. Partey; +8 Authors

    Abstract Agricultural practices have constantly changed in West Africa, and understanding the factors that have driven the changes may help guide strategies to promote sustainable agriculture in the region. To contribute to such efforts, this paper analyzes drivers of change in farming practices in the region using data obtained from surveys of 700 farming households in five countries (Burkina Faso, Ghana, Mali, Niger and Senegal). The results showed that farmers have adopted various practices in response to the challenges they have faced during the last decade. A series of logit models showed that most changes farmers made to their practices are undertaken for multiple reasons. Land use and management changes including expanding farmed areas and using mineral fertilization and manure are positively related to perceived changes in the climate, such as more erratic rainfall. Planting new varieties, introducing new crops, crop rotation, expanding farmed area and using pesticides are positively associated with new market opportunities. Farm practices that require relatively high financial investment such as use of pesticides, drought-tolerant varieties and improved seeds were positively associated with the provision of technical and financial support for farmers through development projects and policies. Changes in markets and climate are both helping to promote needed changes in farming practices in West Africa. Therefore, policies that foster the development of markets for agricultural products, and improved weather- and climate-related information linked to knowledge of appropriate agricultural innovations in different environments are needed.

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    Regional Environmental Change
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    Regional Environmental Change
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      Regional Environmental Change
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    Authors: Mathieu Ouédraogo; Prosper Houessionon; Robert B. Zougmoré; Samuel Tetteh Partey;

    Understanding the level of adoption of Climate-Smart Agriculture (CSA) technologies and practices and its drivers is needed to spur large-scale uptake of CSA in West Africa. This paper used the Average Treatment Effect framework to derive consistent parametric estimators of the potential adoption rates of eight CSA technologies and practices in the Climate-Smart Village (CSV) site of Mali. A total of 300 household heads were randomly selected within the CSV site for data collection. Results showed significant differences in the observed and potential adoption rates of the CSA technologies and practices (drought tolerant crop varieties, micro-dosing, organic manure, intercropping, contour farming, farmer managed natural regeneration, agroforestry and climate information service). The most adopted technology was the organic manure (89%) while the least adopted was the intercropping (21%). The observed adoption rate varied from 39% to 77% according to the CSA options while the potential adoption rates of the technologies and practices ranged from 55% to 81%. This implies an adoption gap of 2% to 16% due to the incomplete diffusion (lack of awareness) of CSA technologies and practices which must be addressed by carrying out more actions to disseminate these technologies in the CSV. Results showed that education, number of workers in the household, access to subsidies, and training have a positive effect on the adoption of most of the CSA technologies and practices. The adoption of drought tolerant varieties and micro-dosing are positively correlated with access to subsidies and training. The study suggests that efforts should be focused concomitantly on the diffusion of CSA options as well as the lifting of their adoption barriers.

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    Sustainability
    Article . 2019 . Peer-reviewed
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    Article . 2019
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      Sustainability
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    Authors: Renata Jagustović; George Papachristos; Robert B. Zougmoré; Julius H. Kotir; +4 Authors

    Les systèmes alimentaires sont confrontés simultanément à de multiples défis : approvisionnement d'une population croissante, adaptation à des risques de changement climatique plus extrêmes et plus fréquents et réduction de leurs émissions considérables de gaz à effet de serre (GES). Les interventions et les politiques du système alimentaire donnent lieu à des synergies et à des compromis qui émergent au fil du temps en raison de la nature dynamique et des interconnexions des éléments du système. L'analyse de l'ensemble d'un système alimentaire est nécessaire pour identifier les synergies qui apportent des avantages simultanés et atténuent les compromis, à court et à long terme. Notre étude vise à éclairer la transformation durable des systèmes alimentaires en identifiant les synergies et les compromis à court et à long terme dans le village climato-intelligent (CSV) de Lawra-Jirapa dans le nord du Ghana dans le cadre des pratiques, technologies, politiques et tendances actuelles de la croissance démographique, des événements extrêmes et des impacts du changement climatique. Nous développons un modèle de dynamique des systèmes pour simuler le système alimentaire dans le CSV entre 2011 et 2060. Nous appliquons l'approche de l'agriculture intelligente face au climat (AIC) comme outil de diagnostic au système CSV pour révéler les compromis et les synergies à court et à long terme entre les objectifs de l'AIC. Les résultats de la simulation révèlent des progrès à court terme vers l'objectif d'augmentation de la productivité et des revenus, avec des compromis dans les objectifs d'élimination des GES, d'adaptation au climat et de résilience. À long terme, après 2035, les pratiques, technologies et politiques agricoles actuelles à l'intérieur et à l'extérieur des limites du CSV entraînent des compromis entre les trois objectifs du CSA, et les progrès réalisés vers ces objectifs sont inversés. Le comportement du système CSV présente donc un schéma « meilleur avant pire ». L'analyse démontre une approche, qui prend en compte simultanément les trois objectifs de l'ASC, pour identifier les synergies et atténuer les compromis dans l'ensemble d'un système alimentaire. Les résultats suggèrent que la compréhension de la dynamique des systèmes alimentaires est un précurseur de leur transformation durable. Cette transformation entraînera des changements dans les objectifs et la structure du système alimentaire en accordant une attention égale aux résultats à court et à long terme. Los sistemas alimentarios enfrentan múltiples desafíos simultáneamente: provisión a una población en crecimiento, adaptación a riesgos de cambio climático más extremos y frecuentes, y reducción de sus considerables emisiones de gases de efecto invernadero (GEI). Las intervenciones y políticas del sistema alimentario dan lugar a sinergias y compensaciones que surgen con el tiempo debido a la naturaleza dinámica y las interconexiones de los elementos del sistema. El análisis de todo un sistema alimentario es necesario para identificar sinergias que aporten beneficios simultáneos y mitiguen las compensaciones, tanto a corto como a largo plazo. Nuestro estudio tiene como objetivo informar la transformación sostenible de los sistemas alimentarios mediante la identificación de sinergias y compensaciones a corto y largo plazo en la aldea climáticamente inteligente (CSV) Lawra-Jirapa en el norte de Ghana bajo las prácticas, tecnologías, políticas y tendencias actuales de crecimiento de la población, eventos extremos e impactos del cambio climático. Desarrollamos un modelo de dinámica de sistemas para simular el sistema alimentario en el CSV entre 2011 y 2060. Aplicamos el enfoque de agricultura climáticamente inteligente (ASAC) como una herramienta de diagnóstico al sistema CSV para revelar las compensaciones y sinergias a corto y largo plazo entre los objetivos de la ASAC. Los resultados de la simulación revelan un progreso a corto plazo hacia el objetivo de aumentar la productividad y los ingresos, con compensaciones en los objetivos de eliminación de GEI, adaptación al clima y resiliencia. A largo plazo, después de 2035, las prácticas, tecnologías y políticas agrícolas actuales dentro y fuera de los límites del CSV dan como resultado compensaciones en los tres objetivos de CSA, y el progreso realizado hacia estos objetivos se invierte. El comportamiento del sistema CSV, por lo tanto, exhibe un patrón de "mejor antes de peor". El análisis demuestra un enfoque, que considera simultáneamente los tres objetivos de ASAC, para identificar sinergias y mitigar las compensaciones en todo un sistema alimentario. Los hallazgos sugieren que la comprensión de la dinámica de los sistemas alimentarios es un precursor de su transformación sostenible. Esta transformación implicará cambios en los objetivos y la estructura del sistema alimentario con la misma atención a los resultados a corto y largo plazo. Food systems face multiple challenges simultaneously: provision to a growing population, adaptation to more extreme and frequent climate change risks, and reduction of their considerable greenhouse gas (GHG) emissions. Food system interventions and policies give rise to synergies and trade-offs that emerge over time due to the dynamic nature and interconnections of system elements. Analysis of an entire food system is necessary to identify synergies that bring simultaneous benefits and mitigate trade-offs, both short- and long-term. Our study aims to inform the sustainable transformation of food systems by identifying short- and long-term synergies and trade-offs in the climate-smart village (CSV) Lawra-Jirapa in northern Ghana under the current practices, technologies, policies, and trends of population growth, extreme events, and climate change impacts. We develop a system dynamics model to simulate the food system in the CSV between 2011 and 2060. We apply the climate-smart agriculture (CSA) approach as a diagnostic tool to the CSV system to reveal the short- and long-term trade-offs and synergies between the CSA goals. The simulation results reveal short-term progress towards the goal of increased productivity and income, with trade-offs in the goals of GHG removal, climate adaptation, and resilience. In the long term, post-2035, current agriculture practices, technologies, and policies inside and outside the CSV boundaries result in trade-offs across all three CSA goals, and progress made towards these goals is reversed. The CSV system behaviour, thus, exhibits a "better before worse" pattern. The analysis demonstrates an approach, which considers simultaneously all three CSA goals, to identify synergies and mitigate trade-offs in an entire food system. The findings suggest that understanding the dynamics of food systems is a precursor to their sustainable transformation. This transformation will entail changes to the food system's goals and structure with equal attention to short- and long-term outcomes. تواجه النظم الغذائية تحديات متعددة في وقت واحد: توفيرها لعدد متزايد من السكان، والتكيف مع مخاطر تغير المناخ الأكثر تطرفًا وتكرارًا، والحد من انبعاثاتها الكبيرة من غازات الدفيئة. تؤدي تدخلات وسياسات النظام الغذائي إلى التآزر والمفاضلات التي تظهر بمرور الوقت بسبب الطبيعة الديناميكية والترابط بين عناصر النظام. يعد تحليل النظام الغذائي بأكمله ضروريًا لتحديد أوجه التآزر التي تحقق فوائد متزامنة وتخفف من المفاضلات، على المدى القصير والطويل. تهدف دراستنا إلى إثراء التحول المستدام للنظم الغذائية من خلال تحديد أوجه التآزر والمفاضلات قصيرة وطويلة الأجل في القرية الذكية مناخياً (CSV) لورا جيرابا في شمال غانا في ظل الممارسات والتقنيات والسياسات والاتجاهات الحالية للنمو السكاني والظواهر المتطرفة وتأثيرات تغير المناخ. نقوم بتطوير نموذج ديناميكيات النظام لمحاكاة النظام الغذائي في CSV بين عامي 2011 و 2060. نطبق نهج الزراعة الذكية مناخيًا (CSA) كأداة تشخيصية لنظام CSV للكشف عن المقايضات والتآزر على المدى القصير والطويل بين أهداف CSA. تكشف نتائج المحاكاة عن تقدم قصير الأجل نحو هدف زيادة الإنتاجية والدخل، مع المفاضلة في أهداف إزالة غازات الدفيئة والتكيف مع المناخ والمرونة. على المدى الطويل، بعد عام 2035، تؤدي الممارسات والتقنيات والسياسات الزراعية الحالية داخل وخارج حدود CSV إلى مقايضات عبر جميع أهداف CSA الثلاثة، ويتم عكس التقدم المحرز نحو تحقيق هذه الأهداف. وبالتالي، يُظهر سلوك نظام CSV نمطًا "أفضل قبل الأسوأ". يوضح التحليل نهجًا، يأخذ في الاعتبار في وقت واحد جميع أهداف CSA الثلاثة، لتحديد أوجه التآزر والتخفيف من المفاضلات في نظام غذائي بأكمله. تشير النتائج إلى أن فهم ديناميكيات النظم الغذائية هو مقدمة لتحولها المستدام. وسيستتبع هذا التحول تغييرات في أهداف النظام الغذائي وهيكله مع إيلاء اهتمام متساوٍ للنتائج القصيرة والطويلة الأجل.

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    Agricultural Systems
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      Agricultural Systems
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      Wageningen Staff Publications
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    Authors: Issa Ouedraogo; Ndeye Seynabou Diouf; Mathieu Ouédraogo; Ousmane Ndiaye; +1 Authors

    West Africa is a very vulnerable part of the world to the impacts of climate change due to a combination of exposure and low adaptive capacity. Climate change has induced an increase in rainfall variability which in turn has affected the availability of water resources, ecosystem services and agricultural production. To adapt to the increased aridity, farmers have used indigenous and modern coping strategies such as soil and water conservation techniques, the use of drought-tolerant crops and varieties, crop diversification, etc., and lately, climate information services (CIS). The latter, according to the discourses, has positively contributed to suitable decision-making in terms of farming, pastoral and fishing management systems. However, the scientific documentation of the engagement approaches, the uptake of the CIS and the ways the delivered information is being used, as well as feedback from the users, is lacking. Additionally, in most of the cases where CIS are introduced, the disconnect between the users and producers of the CIS seems to undercut large-scale uptake. The objective of this paper is to examine the approach used to involve stakeholders in the CIS uptake process in Senegal. We analyzed the experiences and lessons learnt in the country where various CIS products were introduced using participatory methods (stakeholder consultations, interviews, field demonstrations, training workshops, etc.) and innovative stressors (SMS, voice messages, radios, mobile applications, etc.) to effectively involve producers, technicians and policy-makers. Results showed that 16 relevant CIS have been produced out of 27 identified by the various users; 11 CIS diffusion channels have been developed out of 13 requested; 27 climate advisory bodies (MWGs) have been created in 27 districts out of 30 districts in the study zone; about 6800 users have been trained directly and indirectly to effectively use CIS and about 8500 people are receiving CIS via SMS, voice messaging and emails. The opportunities for CIS uptake as well as the challenges that may impede the long-term sustainability of CIS upscaling in the country are highlighted. Recommendations that will improve and sustain the governance system of CIS in Senegal and the rest of West Africa include the involvement of private sectors in the chain of production, delivery and training, and the inciting of producers to largely subscribe to the weather-based index insurance.

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    Climate
    Article . 2018 . Peer-reviewed
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    Article . 2018
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      Climate
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    Authors: Robert B. Zougmoré; Samuel T. Partey; Mathieu Ouédraogo; Bamidele Oluwarotimi Omitoyin; +5 Authors

    De nombreuses projections de l'impact du changement climatique sur les secteurs des cultures, de l'élevage et de la production halieutique de l'agriculture africaine sont rapportées dans la littérature. Cependant, ils peuvent être sans doute trop généraux pour comprendre l'ampleur de l'impact et pour éclairer les stratégies d'adaptation et les efforts d'élaboration de politiques adaptés à la promotion d'une agriculture intelligente face au climat dans la seule région de l'Afrique de l'Ouest. Ce document a été synthétisé à partir de plusieurs publications scientifiques et visait à fournir des informations à jour sur les impacts du changement climatique, les stratégies d'adaptation, les politiques et les mécanismes institutionnels que chaque sous-secteur agricole avait mis en place pour faire face au changement climatique et à ses problèmes connexes en Afrique de l'Ouest. Pour chaque sous-secteur (culture, pêche et élevage), l'état actuel, les impacts du changement climatique, les stratégies d'atténuation et d'adaptation ont été analysés. En outre, nous avons examiné les récentes initiatives politiques dans la région qui favorisent le développement et l'adoption d'options agricoles intelligentes face au climat pour améliorer la résilience des systèmes agricoles et les moyens de subsistance des petits exploitants face aux risques liés au changement climatique. Des niveaux communautaire aux niveaux national et régional, diverses stratégies et politiques sont également prises pour guider les actions et les investissements en faveur d'une agriculture intelligente face au climat en Afrique de l'Ouest. En la literatura se informan muchas proyecciones del impacto del cambio climático en los sectores de producción agrícola, ganadera y pesquera de la agricultura africana. Sin embargo, podría decirse que son demasiado generales para comprender la magnitud del impacto y para informar las estrategias de adaptación y los esfuerzos de desarrollo de políticas que se adaptan a la promoción de la agricultura climáticamente inteligente solo en la región de África Occidental. Este documento se sintetizó a partir de varias publicaciones académicas y tenía como objetivo proporcionar información actualizada sobre los impactos del cambio climático, las estrategias de adaptación, las políticas y los mecanismos institucionales que cada subsector agrícola había implementado para abordar el cambio climático y sus problemas relacionados en África Occidental. Para cada subsector (cultivo, pesquería y ganadería), se ha analizado el estado actual, los impactos del cambio climático, las estrategias de mitigación y adaptación. Además, revisamos las iniciativas políticas recientes en la región que fomentan el desarrollo y la adopción de opciones agrícolas climáticamente inteligentes para mejorar la resiliencia de los sistemas agrícolas y los medios de vida de los pequeños agricultores a los riesgos del cambio climático. Desde la comunidad hasta los niveles nacional y regional, también se están adoptando diversas estrategias y políticas para guiar las acciones y la inversión en la agricultura climáticamente inteligente en África Occidental. Many projections of the impact of climate change on the crop, livestock and fishery production sectors of African agriculture are reported in the literature. However, they may be arguably too general to understand the magnitude of impact and to inform adaptation strategies and policy development efforts that are tailored to promoting climate-smart agriculture in the West African region alone. This paper was synthesized from several scholarly literature and aimed at providing up-to-date information on climate change impacts, adaptation strategies, policies and institutional mechanisms that each agriculture subsector had put in place in dealing with climate change and its related issues in West Africa. For each subsector (crop, fishery and livestock), the current status, climate change impacts, mitigation and adaption strategies have been analyzed. In addition, we reviewed recent policy initiatives in the region that foster the development and adoption of climate-smart agricultural options to improve resilience of farming systems and livelihoods of smallholder farmers to climate change risks. From community to national and regional levels, various strategies and policies are also being taken to guide actions and investment for climate-smart agriculture in West Africa. تم الإبلاغ عن العديد من التوقعات لتأثير تغير المناخ على قطاعات إنتاج المحاصيل والثروة الحيوانية والسمكية في الزراعة الأفريقية في الأدبيات. ومع ذلك، قد تكون عامة للغاية لفهم حجم التأثير ولتوجيه استراتيجيات التكيف وجهود وضع السياسات المصممة خصيصًا لتعزيز الزراعة الذكية مناخيًا في منطقة غرب إفريقيا وحدها. تم تجميع هذه الورقة من العديد من المؤلفات العلمية وتهدف إلى توفير معلومات محدثة عن آثار تغير المناخ واستراتيجيات التكيف والسياسات والآليات المؤسسية التي وضعها كل قطاع فرعي زراعي في التعامل مع تغير المناخ والقضايا ذات الصلة به في غرب أفريقيا. بالنسبة لكل قطاع فرعي (المحاصيل ومصائد الأسماك والثروة الحيوانية)، تم تحليل الوضع الحالي وآثار تغير المناخ واستراتيجيات التخفيف والتكيف. بالإضافة إلى ذلك، استعرضنا مبادرات السياسة الأخيرة في المنطقة التي تعزز تطوير واعتماد خيارات زراعية ذكية مناخياً لتحسين مرونة النظم الزراعية وسبل عيش المزارعين أصحاب الحيازات الصغيرة في مواجهة مخاطر تغير المناخ. من المستوى المجتمعي إلى المستوى الوطني والإقليمي، يتم أيضًا اتخاذ استراتيجيات وسياسات مختلفة لتوجيه الإجراءات والاستثمار من أجل الزراعة الذكية مناخيًا في غرب إفريقيا.

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    Agriculture & Food Security
    Article . 2016 . Peer-reviewed
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    Authors: Djibril S. Dayamba; Catherine Ky-Dembele; Jules Bayala; Peter Dorward; +9 Authors

    Recently, a new approach to extension and climate information services, namely Participatory Integrated Climate Services for Agriculture (PICSA) has been developed. PICSA makes use of historical climate records,participatory decision-making tools and forecasts to help farmers identify and better plan livelihood options that are suited to local climate features and farmers’ own circumstances. This approach was implemented in 2016 in two sites in Senegal and Mali, with 57 and 47 farmers, respectively. At the end of the growing season, these farmers were surveyed to explore their perceptions on the use of the approach. In Senegal and Mali, respectively 97% and 76% of the respondents found the approach ‘very useful’. The approach enabled farmers to make strategic plans long before the season, based on their improved knowledge of local climate features. Moreover,evidence demonstrates that PICSA stimulated farmers to consider and then implement a range of innovations which included: (i) changes in timing of activities such as sowing dates, (ii) implementing soil and water management practices, (iii) selection of crop varieties, (iv) fertiliser management and (v) adaptation of plans for the season (farm size, etc.) to the actual resources available to them. The study also demonstrated the potential of farmer-to-farmer extension in scaling up the approach, which is of great interest especially in the current context of limited extension services in the West African region.

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    Authors: Samuel Saaka Buah; H. Ibrahim; Mavis Derigubah; Martin Kuzie; +4 Authors

    Les facteurs les plus limitants pour la production durable de maïs dans les systèmes de petites exploitations agricoles d'Afrique subsaharienne, en particulier dans la zone agroécologique de la savane, sont le régime irrégulier des précipitations et la faible fertilité des sols. Des recherches ont été menées auprès de petits agriculteurs en 2013 et 2014 dans deux communautés de la région du Haut-Ouest du Ghana pour évaluer les effets de l'engrais minéral NPK (64-38-38 kg ha−1 N-P2O5-K2O, respectivement) sur la croissance et le rendement du maïs à Bompari, et 375 kg ha−1 d'engrais YaraLegume™ (0-18-13 NPK + 3 CaO + 2 MgO + 4 S) sur la croissance et le rendement du soja à Doggoh, sans labour (en utilisant l'application de glyphosate avant la plantation) et le travail du sol conventionnel (en utilisant une houe manuelle). Les rendements céréaliers moyens du maïs et du soja étaient plus élevés en 2014 qu'en 2013. Au cours des deux années, le travail sans labour et le travail conventionnel du sol ont eu un effet similaire sur la hauteur des plants de soja, les gousses par plant et la production de matière sèche hors sol. En moyenne par rapport au traitement par engrais, le rendement céréalier du soja sans labour était 51 % plus élevé par rapport au soja labouré en 2014 seulement. Le rendement céréalier moyen du maïs sans labour était supérieur de 68 % à celui du maïs labouré en 2013 seulement. Quelle que soit la méthode de travail du sol, l'application d'engrais a considérablement augmenté les rendements en maïs et en graines de soja. L'application d'engrais sur le soja a entraîné une augmentation de 59 % (193 kg ha−1) et de 54 % (474 kg ha−1) des rendements céréaliers en 2013 et 2014, respectivement, par rapport à l'absence de traitement par engrais. Le rendement céréalier moyen du maïs était de 140 et 252 % plus élevé avec le traitement par engrais en 2013 et 2014, respectivement. Le système sans labour a permis de réaliser des économies grâce à une main-d' œuvre réduite, principalement pour le contrôle des mauvaises herbes. Les résultats de ces études ont montré que l'absence de labour avec engrais, que ce soit pour le maïs ou le soja, entraînait généralement les rendements céréaliers les plus élevés. Le non-labour a également donné les rendements économiques les plus élevés. Les agriculteurs peuvent obtenir de meilleurs rendements sur l'argent investi dans les herbicides pour la production de maïs et de soja sans labour qu'avec leur pratique traditionnelle, même sur des sols de savane dégradés avec de faibles niveaux de nutriments disponibles pour les plantes. Los factores más limitantes para la producción sostenible de maíz en los sistemas agrícolas a pequeña escala del África subsahariana, especialmente en la zona agroecológica de la sabana, son el patrón errático de las precipitaciones y la baja fertilidad del suelo. Se realizó una investigación con pequeños agricultores en 2013 y 2014 en dos comunidades de la región del Alto Oeste de Ghana para evaluar los efectos del fertilizante mineral NPK (64-38-38 kg ha-1 N–P2O5–K2O, respectivamente) sobre el crecimiento y el rendimiento del maíz en Bompari, y 375 kg ha-1 de fertilizante YaraLegume™ (0-18-13 NPK + 3 CaO + 2 MgO + 4 S) sobre el crecimiento y el rendimiento de la soja en Doggoh, sin labranza (utilizando la aplicación previa a la siembra de glifosato) y la labranza convencional (utilizando azada manual). Los rendimientos medios de granos tanto de maíz como de soja fueron más altos en 2014 que en 2013. En ambos años, la labranza cero y la labranza convencional tuvieron un efecto similar en la altura de la planta de soja, las vainas por planta y la producción de materia seca sobre el suelo. Con un promedio sobre el tratamiento con fertilizantes, el rendimiento de grano de la soja sin labranza fue 51% mayor en comparación con la soja labrada solo en 2014. El rendimiento medio de grano del maíz sin labranza fue un 68% mayor que el del maíz labrado solo en 2013. Independientemente del método de labranza, la aplicación de fertilizantes aumentó significativamente los rendimientos de los granos de maíz y soja. La aplicación de fertilizantes a la soja dio como resultado un aumento del 59% (193 kg ha-1) y del 54% (474 kg ha-1) en los rendimientos de granos en 2013 y 2014, respectivamente, en comparación con el no tratamiento con fertilizantes. El rendimiento medio de grano de maíz fue 140 y 252% mayor con el tratamiento con fertilizantes en 2013 y 2014, respectivamente. El sistema de labranza cero mostró ahorros de costes debido a la reducción de la mano de obra principalmente para el control de malezas. Los resultados de estos estudios mostraron que la labranza cero con fertilizantes, ya sea para maíz o soja, generalmente dio como resultado los mayores rendimientos de granos. La labranza cero también dio los mayores rendimientos económicos. Los agricultores pueden obtener mejores rendimientos del dinero invertido en herbicidas para producir maíz y soja sin labranza que con su práctica tradicional, incluso en suelos de sabana degradados con bajos niveles de nutrientes disponibles para las plantas. The most limiting factors for sustainable maize production in smallholder farming systems of sub-Saharan Africa, especially the savanna agro-ecological zone, are erratic rainfall pattern and low soil fertility. Research was conducted with smallholder farmers in 2013 and 2014 in two communities in the Upper West Region of Ghana to evaluate the effects of NPK mineral fertilizer (64–38–38 kg ha−1 N–P2O5–K2O, respectively) on growth and yield of maize at Bompari, and 375 kg ha−1 of YaraLegume™ fertilizer (0–18–13 NPK + 3 CaO + 2 MgO + 4 S) on growth and yield of soybean at Doggoh, under no-tillage (using pre-plant application of glyphosate) and conventional tillage (using hand hoe). Mean grain yields of both maize and soybean were higher in 2014 than 2013. In both years, no-tillage and conventional tillage had similar effect on soybean plant height, pods per plant and aboveground dry matter production. Averaging over fertilizer treatment, grain yield of no-tillage soybean was 51% higher when compared with tilled soybean in 2014 only. Mean grain yield of no-tillage maize was 68% higher than that of tilled maize in 2013 only. Regardless of tillage method, fertilizer application significantly increased maize and soybean grain yields. Application of fertilizer to soybean resulted in 59% (193 kg ha−1) and 54% (474 kg ha−1) increase in grain yields in 2013 and 2014, respectively, over no fertilizer treatment. Mean grain yield of maize was 140 and 252% higher with fertilizer treatment in 2013 and 2014, respectively. No-till system showed cost savings due to reduced labour mainly for weed control. The results of these studies showed that no-tillage with fertilizer, whether for maize or soybean, generally resulted in the highest grain yields. No-tillage also gave the highest economic returns. Farmers can get better returns to the money invested in herbicide for producing maize and soybean under no-till than with their traditional practice even on degraded savanna soils with low levels of plant available nutrients. تتمثل العوامل الأكثر تقييدًا لإنتاج الذرة المستدام في أنظمة زراعة أصحاب الحيازات الصغيرة في أفريقيا جنوب الصحراء الكبرى، وخاصة منطقة السافانا الزراعية الإيكولوجية، في نمط هطول الأمطار غير المنتظم وانخفاض خصوبة التربة. تم إجراء بحث مع صغار المزارعين في عامي 2013 و 2014 في مجتمعين في المنطقة الغربية العليا من غانا لتقييم آثار الأسمدة المعدنية NPK (64-38-38 كجم هكتار-1 N - P2O5 - K2O، على التوالي) على نمو ومحصول الذرة في بومباري، و 375 كجم هكتار-1 من سماد YaraLegume™ (0-18-13 NPK + 3 CaO + 2 MgO + 4 S) على نمو ومحصول فول الصويا في Doggoh، تحت الحراثة (باستخدام تطبيق ما قبل الزرع من الغليفوسات) والحراثة التقليدية (باستخدام مجرفة اليد). كان متوسط غلة الحبوب لكل من الذرة وفول الصويا أعلى في عام 2014 مقارنة بعام 2013. في كلتا السنتين، كان للحرث التقليدي وعدم الحراثة تأثير مماثل على ارتفاع نبات فول الصويا، والقرون لكل نبات وإنتاج المواد الجافة فوق الأرض. في المتوسط على معالجة الأسمدة، كان إنتاج الحبوب من فول الصويا بدون حرث أعلى بنسبة 51 ٪ مقارنة بفول الصويا الحارث في عام 2014 فقط. كان متوسط محصول الحبوب من الذرة بدون حراثة أعلى بنسبة 68 ٪ من محصول الذرة المحروثة في عام 2013 فقط. بغض النظر عن طريقة الحراثة، أدى استخدام الأسمدة إلى زيادة كبيرة في محصول الذرة وحبوب فول الصويا. أدى استخدام الأسمدة على فول الصويا إلى زيادة بنسبة 59 ٪ (193 كجم هكتار-1) و 54 ٪ (474 كجم هكتار-1) في غلة الحبوب في عامي 2013 و 2014، على التوالي، دون معالجة الأسمدة. كان متوسط محصول الذرة من الحبوب أعلى بنسبة 140 و 252 ٪ مع معالجة الأسمدة في عامي 2013 و 2014 على التوالي. أظهر نظام عدم الحراثة وفورات في التكاليف بسبب انخفاض العمالة بشكل رئيسي لمكافحة الأعشاب الضارة. أظهرت نتائج هذه الدراسات أن عدم الحرث بالأسمدة، سواء للذرة أو فول الصويا، أدى عمومًا إلى أعلى إنتاجية للحبوب. كما أعطى عدم الحرث أعلى عوائد اقتصادية. يمكن للمزارعين الحصول على عوائد أفضل للأموال المستثمرة في مبيدات الأعشاب لإنتاج الذرة وفول الصويا دون حراثة مقارنة بممارساتهم التقليدية حتى على تربة السافانا المتدهورة ذات المستويات المنخفضة من المغذيات النباتية المتاحة.

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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Agriculture & Food Security
      Article . 2017 . Peer-reviewed
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Agriculture & Food Security
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Agriculture & Food Security
      Article . 2017
      Data sources: DOAJ
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      https://dx.doi.org/10.60692/km...
      Other literature type . 2017
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      https://dx.doi.org/10.60692/tw...
      Other literature type . 2017
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Ndeye Seynabou Diouf; Issa Ouedraogo; Robert B. Zougmoré; Mathieu Ouedraogo; +2 Authors

    In the context of climate change, climate variability has become a major issue in recent years in sub-Saharan countries. Climate information services (CIS) could be a vital resort for African produ...

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CGIAR CGSpace (Consu...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Gender Technology and Development
    Article . 2019 . Peer-reviewed
    License: CC BY NC ND
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Gender Technology and Development
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CGIAR CGSpace (Consu...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Gender Technology and Development
      Article . 2019 . Peer-reviewed
      License: CC BY NC ND
      Data sources: Crossref
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Gender Technology and Development
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      Data sources: UnpayWall
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Pramod Aggarwal; Andy Jarvis; Bruce M. Campbell; Robert B. Zougmoré; +21 Authors

    L'augmentation des risques météorologiques menace les systèmes de production agricole et la sécurité alimentaire dans le monde entier. Maintenir la croissance agricole tout en minimisant les chocs climatiques est crucial pour construire un système de production alimentaire résilient et atteindre les objectifs de développement dans les pays vulnérables. Les experts ont proposé plusieurs interventions technologiques, institutionnelles et politiques pour aider les agriculteurs à s'adapter à la variabilité climatique actuelle et future et à atténuer les émissions de gaz à effet de serre (GES). Ce document présente le village intelligent face au climat (CSV) comme moyen d'effectuer de la recherche agricole pour le développement qui teste de manière robuste les options technologiques et institutionnelles pour faire face à la variabilité climatique et au changement climatique dans l'agriculture en utilisant des méthodes participatives.Il vise à étendre et à étendre les options appropriées et à tirer des leçons pour les décideurs politiques du niveau local au niveau mondial.L' approche intègre l'évaluation des technologies, des pratiques, des services et des processus climato-intelligents pertinents pour la gestion des risques climatiques locaux et identifie les possibilités de maximiser les gains d'adaptation des synergies entre les différentes interventions et de reconnaître les mésadaptations et les compromis potentiels.Il veille à ce que ceux-ci soient alignés sur les connaissances locales et liés aux plans de développement.Ce document décrit les premiers résultats en Asie., l'Afrique et l'Amérique latine pour illustrer différents exemples de l'approche CSV dans divers contextes agroécologiques. Les résultats des études initiales indiquent que l'approche CSV a un fort potentiel pour étendre les technologies, les pratiques et les services agricoles climato-intelligents prometteurs. Les études analogiques climatiques indiquent que les leçons apprises sur les sites CSV seraient pertinentes pour la planification de l'adaptation dans une grande partie des terres agricoles mondiales, même dans les scénarios de changement climatique. Les principaux obstacles et possibilités de travail ultérieur sont également discutés. El aumento de los riesgos climáticos amenaza los sistemas de producción agrícola y la seguridad alimentaria en todo el mundo. Mantener el crecimiento agrícola y minimizar los impactos climáticos es crucial para construir un sistema de producción de alimentos resiliente y cumplir los objetivos de desarrollo en los países vulnerables. Los expertos han propuesto varias intervenciones tecnológicas, institucionales y políticas para ayudar a los agricultores a adaptarse a la variabilidad climática actual y futura y mitigar las emisiones de gases de efecto invernadero (GEI). Este documento presenta la aldea climáticamente inteligente (CSV) como un medio para realizar investigación agrícola para el desarrollo que pruebe de manera sólida las opciones tecnológicas e institucionales para hacer frente a la variabilidad climática y el cambio climático en la agricultura utilizando métodos participativos. Su objetivo es ampliar y ampliar las opciones apropiadas y extraer lecciones para los responsables de la formulación de políticas a nivel local y global. El enfoque incorpora la evaluación de tecnologías, prácticas, servicios y procesos climáticamente inteligentes relevantes para la gestión local del riesgo climático e identifica oportunidades para maximizar los beneficios de adaptación de las sinergias en diferentes intervenciones y reconocer posibles inadaptaciones y compensaciones. Se asegura de que estén alineados con el conocimiento local y se vinculen con los planes de desarrollo. Este documento describe los primeros resultados en Asia, África y América Latina para ilustrar diferentes ejemplos del enfoque CSV en diversos entornos agroecológicos. Los resultados de los estudios iniciales indican que el enfoque CSV tiene un alto potencial para ampliar las prometedoras tecnologías, prácticas y servicios agrícolas climáticamente inteligentes. Los estudios analógicos climáticos indican que las lecciones aprendidas en los sitios CSV serían relevantes para la planificación de la adaptación en una gran parte de las tierras agrícolas mundiales, incluso en escenarios de cambio climático. También se discuten las barreras clave y las oportunidades para seguir trabajando. Increasing weather risks threaten agricultural production systems and food security across the world.Maintaining agricultural growth while minimizing climate shocks is crucial to building a resilient food production system and meeting developmental goals in vulnerable countries.Experts have proposed several technological, institutional, and policy interventions to help farmers adapt to current and future weather variability and to mitigate greenhouse gas (GHG) emissions.This paper presents the climate-smart village (CSV) approach as a means of performing agricultural research for development that robustly tests technological and institutional options for dealing with climatic variability and climate change in agriculture using participatory methods.It aims to scale up and scale out the appropriate options and draw out lessons for policy makers from local to global levels.The approach incorporates evaluation of climate-smart technologies, practices, services, and processes relevant to local climatic risk management and identifies opportunities for maximizing adaptation gains from synergies across different interventions and recognizing potential maladaptation and trade-offs.It ensures that these are aligned with local knowledge and link into development plans.This paper describes early results in Asia, Africa, and Latin America to illustrate different examples of the CSV approach in diverse agroecological settings.Results from initial studies indicate that the CSV approach has a high potential for scaling out promising climate-smart agricultural technologies, practices, and services.Climate analog studies indicate that the lessons learned at the CSV sites would be relevant to adaptation planning in a large part of global agricultural land even under scenarios of climate change.Key barriers and opportunities for further work are also discussed. تهدد مخاطر الطقس المتزايدة أنظمة الإنتاج الزراعي والأمن الغذائي في جميع أنحاء العالم. يعد الحفاظ على النمو الزراعي مع تقليل الصدمات المناخية أمرًا بالغ الأهمية لبناء نظام إنتاج غذائي مرن وتحقيق الأهداف الإنمائية في البلدان المعرضة للخطر. اقترح الخبراء العديد من التدخلات التكنولوجية والمؤسسية والسياساتية لمساعدة المزارعين على التكيف مع تقلبات الطقس الحالية والمستقبلية والتخفيف من انبعاثات غازات الدفيئة. تعرض هذه الورقة القرية الذكية مناخيًا (CSV) نهج كوسيلة لإجراء البحوث الزراعية من أجل التنمية التي تختبر بقوة الخيارات التكنولوجية والمؤسسية للتعامل مع التقلبات المناخية وتغير المناخ في الزراعة باستخدام الأساليب التشاركية. ويهدف إلى توسيع نطاق الخيارات المناسبة وتوسيع نطاقها واستخلاص الدروس لصانعي السياسات من المستويات المحلية إلى العالمية. يتضمن النهج تقييم التقنيات والممارسات والخدمات والعمليات الذكية مناخياً ذات الصلة بإدارة المخاطر المناخية المحلية ويحدد فرص تحقيق أقصى قدر من مكاسب التكيف من أوجه التآزر عبر التدخلات المختلفة والاعتراف بسوء التكيف والمقايضات المحتملة. ويضمن توافقها مع المعرفة المحلية وربطها بخطط التنمية. تصف هذه الورقة النتائج المبكرة في آسيا وأفريقيا وأمريكا اللاتينية لتوضيح أمثلة مختلفة لنهج CSV في بيئات زراعية إيكولوجية متنوعة. تشير نتائج الدراسات الأولية إلى أن نهج CSV لديه إمكانات عالية لتوسيع نطاق التقنيات والممارسات والخدمات الزراعية الواعدة الذكية مناخياً. تشير الدراسات التناظرية المناخية إلى أن الدروس المستفادة في مواقع CSV ستكون ذات صلة بتخطيط التكيف في جزء كبير من الأراضي الزراعية العالمية حتى في ظل سيناريوهات تغير المناخ. كما تتم مناقشة الحواجز الرئيسية وفرص المزيد من العمل.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ The University of Ve...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Ecology and Society
    Article . 2018 . Peer-reviewed
    Data sources: Crossref
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Ecology and Society
    Article
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    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Ecology and Society
    Article . 2018
    Data sources: DOAJ
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    https://dx.doi.org/10.60692/hm...
    Other literature type . 2018
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    https://dx.doi.org/10.60692/qn...
    Other literature type . 2018
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    Access Routes
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ The University of Ve...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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      Ecology and Society
      Article . 2018 . Peer-reviewed
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Ecology and Society
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      Ecology and Society
      Article . 2018
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      https://dx.doi.org/10.60692/hm...
      Other literature type . 2018
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      https://dx.doi.org/10.60692/qn...
      Other literature type . 2018
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Samuel Partey; Robert Zougmoré; Mathieu Ouédraogo; Naresh Thevathasan;

    In the literature, a lot is discussed about how agroforestry can achieve the mitigation, adaptation and productivity goals of climate-smart agriculture (CSA). However, this may be relatively too broad to assess the trade-offs and synergies of how specific agroforestry technologies or practices achieve the three pillars of CSA. Here, we provide an overview of how improved fallows (an agroforestry technology consisting of planting mainly legume tree/shrub species in rotation with cultivated crops) may achieve the goals of climate-smart agriculture in Sub-Saharan Africa (SSA). Our review showed that improved fallow systems have real potential to contribute to food security and climate change mitigation and adaptation in SSA. Under proper management, improved fallows can increase maize yields to about 6 t ha−1, which is comparable to conventional maize yields under fertilization. This is attributed to improved soil fertility and nutrient use efficiency. Although data was generally limited, the growing literature showed that improved fallows increased soil carbon sequestration and reduced greenhouse emissions. Further, as a multiple output land use system, improved fallows may increase fodder availability during dry periods and provide substantial biomass for charcoal production. These livelihood options may become important financial safety nets during off seasons or in the event of crop failures. This notwithstanding, the adoption of improved fallows is mainly in Southern and Eastern Africa, where over 20,000 farmers are now using Sesbania sesban, Tephrosia vogelii, and Cajanus cajan in two-year fallows followed by maize rotations. Land tenure issues, lack of social capital, and improved germplasm and accessions of fallow species have been cited as constraints to scaling up. However, development of seed orchards, nursery development, and the willingness of policy makers to create a policy environment that addresses market failures and alleviates disincentives should improve adoption and future scaling up.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CGIAR CGSpace (Consu...arrow_drop_down
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    Sustainability
    Article . 2017 . Peer-reviewed
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    Authors: Mathieu Ouédraogo; Robert B. Zougmoré; Abdoulaye S. Moussa; Samuel T. Partey; +8 Authors

    Abstract Agricultural practices have constantly changed in West Africa, and understanding the factors that have driven the changes may help guide strategies to promote sustainable agriculture in the region. To contribute to such efforts, this paper analyzes drivers of change in farming practices in the region using data obtained from surveys of 700 farming households in five countries (Burkina Faso, Ghana, Mali, Niger and Senegal). The results showed that farmers have adopted various practices in response to the challenges they have faced during the last decade. A series of logit models showed that most changes farmers made to their practices are undertaken for multiple reasons. Land use and management changes including expanding farmed areas and using mineral fertilization and manure are positively related to perceived changes in the climate, such as more erratic rainfall. Planting new varieties, introducing new crops, crop rotation, expanding farmed area and using pesticides are positively associated with new market opportunities. Farm practices that require relatively high financial investment such as use of pesticides, drought-tolerant varieties and improved seeds were positively associated with the provision of technical and financial support for farmers through development projects and policies. Changes in markets and climate are both helping to promote needed changes in farming practices in West Africa. Therefore, policies that foster the development of markets for agricultural products, and improved weather- and climate-related information linked to knowledge of appropriate agricultural innovations in different environments are needed.

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    Regional Environmental Change
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    Regional Environmental Change
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      Regional Environmental Change
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    Authors: Mathieu Ouédraogo; Prosper Houessionon; Robert B. Zougmoré; Samuel Tetteh Partey;

    Understanding the level of adoption of Climate-Smart Agriculture (CSA) technologies and practices and its drivers is needed to spur large-scale uptake of CSA in West Africa. This paper used the Average Treatment Effect framework to derive consistent parametric estimators of the potential adoption rates of eight CSA technologies and practices in the Climate-Smart Village (CSV) site of Mali. A total of 300 household heads were randomly selected within the CSV site for data collection. Results showed significant differences in the observed and potential adoption rates of the CSA technologies and practices (drought tolerant crop varieties, micro-dosing, organic manure, intercropping, contour farming, farmer managed natural regeneration, agroforestry and climate information service). The most adopted technology was the organic manure (89%) while the least adopted was the intercropping (21%). The observed adoption rate varied from 39% to 77% according to the CSA options while the potential adoption rates of the technologies and practices ranged from 55% to 81%. This implies an adoption gap of 2% to 16% due to the incomplete diffusion (lack of awareness) of CSA technologies and practices which must be addressed by carrying out more actions to disseminate these technologies in the CSV. Results showed that education, number of workers in the household, access to subsidies, and training have a positive effect on the adoption of most of the CSA technologies and practices. The adoption of drought tolerant varieties and micro-dosing are positively correlated with access to subsidies and training. The study suggests that efforts should be focused concomitantly on the diffusion of CSA options as well as the lifting of their adoption barriers.

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    Sustainability
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    Authors: Renata Jagustović; George Papachristos; Robert B. Zougmoré; Julius H. Kotir; +4 Authors

    Les systèmes alimentaires sont confrontés simultanément à de multiples défis : approvisionnement d'une population croissante, adaptation à des risques de changement climatique plus extrêmes et plus fréquents et réduction de leurs émissions considérables de gaz à effet de serre (GES). Les interventions et les politiques du système alimentaire donnent lieu à des synergies et à des compromis qui émergent au fil du temps en raison de la nature dynamique et des interconnexions des éléments du système. L'analyse de l'ensemble d'un système alimentaire est nécessaire pour identifier les synergies qui apportent des avantages simultanés et atténuent les compromis, à court et à long terme. Notre étude vise à éclairer la transformation durable des systèmes alimentaires en identifiant les synergies et les compromis à court et à long terme dans le village climato-intelligent (CSV) de Lawra-Jirapa dans le nord du Ghana dans le cadre des pratiques, technologies, politiques et tendances actuelles de la croissance démographique, des événements extrêmes et des impacts du changement climatique. Nous développons un modèle de dynamique des systèmes pour simuler le système alimentaire dans le CSV entre 2011 et 2060. Nous appliquons l'approche de l'agriculture intelligente face au climat (AIC) comme outil de diagnostic au système CSV pour révéler les compromis et les synergies à court et à long terme entre les objectifs de l'AIC. Les résultats de la simulation révèlent des progrès à court terme vers l'objectif d'augmentation de la productivité et des revenus, avec des compromis dans les objectifs d'élimination des GES, d'adaptation au climat et de résilience. À long terme, après 2035, les pratiques, technologies et politiques agricoles actuelles à l'intérieur et à l'extérieur des limites du CSV entraînent des compromis entre les trois objectifs du CSA, et les progrès réalisés vers ces objectifs sont inversés. Le comportement du système CSV présente donc un schéma « meilleur avant pire ». L'analyse démontre une approche, qui prend en compte simultanément les trois objectifs de l'ASC, pour identifier les synergies et atténuer les compromis dans l'ensemble d'un système alimentaire. Les résultats suggèrent que la compréhension de la dynamique des systèmes alimentaires est un précurseur de leur transformation durable. Cette transformation entraînera des changements dans les objectifs et la structure du système alimentaire en accordant une attention égale aux résultats à court et à long terme. Los sistemas alimentarios enfrentan múltiples desafíos simultáneamente: provisión a una población en crecimiento, adaptación a riesgos de cambio climático más extremos y frecuentes, y reducción de sus considerables emisiones de gases de efecto invernadero (GEI). Las intervenciones y políticas del sistema alimentario dan lugar a sinergias y compensaciones que surgen con el tiempo debido a la naturaleza dinámica y las interconexiones de los elementos del sistema. El análisis de todo un sistema alimentario es necesario para identificar sinergias que aporten beneficios simultáneos y mitiguen las compensaciones, tanto a corto como a largo plazo. Nuestro estudio tiene como objetivo informar la transformación sostenible de los sistemas alimentarios mediante la identificación de sinergias y compensaciones a corto y largo plazo en la aldea climáticamente inteligente (CSV) Lawra-Jirapa en el norte de Ghana bajo las prácticas, tecnologías, políticas y tendencias actuales de crecimiento de la población, eventos extremos e impactos del cambio climático. Desarrollamos un modelo de dinámica de sistemas para simular el sistema alimentario en el CSV entre 2011 y 2060. Aplicamos el enfoque de agricultura climáticamente inteligente (ASAC) como una herramienta de diagnóstico al sistema CSV para revelar las compensaciones y sinergias a corto y largo plazo entre los objetivos de la ASAC. Los resultados de la simulación revelan un progreso a corto plazo hacia el objetivo de aumentar la productividad y los ingresos, con compensaciones en los objetivos de eliminación de GEI, adaptación al clima y resiliencia. A largo plazo, después de 2035, las prácticas, tecnologías y políticas agrícolas actuales dentro y fuera de los límites del CSV dan como resultado compensaciones en los tres objetivos de CSA, y el progreso realizado hacia estos objetivos se invierte. El comportamiento del sistema CSV, por lo tanto, exhibe un patrón de "mejor antes de peor". El análisis demuestra un enfoque, que considera simultáneamente los tres objetivos de ASAC, para identificar sinergias y mitigar las compensaciones en todo un sistema alimentario. Los hallazgos sugieren que la comprensión de la dinámica de los sistemas alimentarios es un precursor de su transformación sostenible. Esta transformación implicará cambios en los objetivos y la estructura del sistema alimentario con la misma atención a los resultados a corto y largo plazo. Food systems face multiple challenges simultaneously: provision to a growing population, adaptation to more extreme and frequent climate change risks, and reduction of their considerable greenhouse gas (GHG) emissions. Food system interventions and policies give rise to synergies and trade-offs that emerge over time due to the dynamic nature and interconnections of system elements. Analysis of an entire food system is necessary to identify synergies that bring simultaneous benefits and mitigate trade-offs, both short- and long-term. Our study aims to inform the sustainable transformation of food systems by identifying short- and long-term synergies and trade-offs in the climate-smart village (CSV) Lawra-Jirapa in northern Ghana under the current practices, technologies, policies, and trends of population growth, extreme events, and climate change impacts. We develop a system dynamics model to simulate the food system in the CSV between 2011 and 2060. We apply the climate-smart agriculture (CSA) approach as a diagnostic tool to the CSV system to reveal the short- and long-term trade-offs and synergies between the CSA goals. The simulation results reveal short-term progress towards the goal of increased productivity and income, with trade-offs in the goals of GHG removal, climate adaptation, and resilience. In the long term, post-2035, current agriculture practices, technologies, and policies inside and outside the CSV boundaries result in trade-offs across all three CSA goals, and progress made towards these goals is reversed. The CSV system behaviour, thus, exhibits a "better before worse" pattern. The analysis demonstrates an approach, which considers simultaneously all three CSA goals, to identify synergies and mitigate trade-offs in an entire food system. The findings suggest that understanding the dynamics of food systems is a precursor to their sustainable transformation. This transformation will entail changes to the food system's goals and structure with equal attention to short- and long-term outcomes. تواجه النظم الغذائية تحديات متعددة في وقت واحد: توفيرها لعدد متزايد من السكان، والتكيف مع مخاطر تغير المناخ الأكثر تطرفًا وتكرارًا، والحد من انبعاثاتها الكبيرة من غازات الدفيئة. تؤدي تدخلات وسياسات النظام الغذائي إلى التآزر والمفاضلات التي تظهر بمرور الوقت بسبب الطبيعة الديناميكية والترابط بين عناصر النظام. يعد تحليل النظام الغذائي بأكمله ضروريًا لتحديد أوجه التآزر التي تحقق فوائد متزامنة وتخفف من المفاضلات، على المدى القصير والطويل. تهدف دراستنا إلى إثراء التحول المستدام للنظم الغذائية من خلال تحديد أوجه التآزر والمفاضلات قصيرة وطويلة الأجل في القرية الذكية مناخياً (CSV) لورا جيرابا في شمال غانا في ظل الممارسات والتقنيات والسياسات والاتجاهات الحالية للنمو السكاني والظواهر المتطرفة وتأثيرات تغير المناخ. نقوم بتطوير نموذج ديناميكيات النظام لمحاكاة النظام الغذائي في CSV بين عامي 2011 و 2060. نطبق نهج الزراعة الذكية مناخيًا (CSA) كأداة تشخيصية لنظام CSV للكشف عن المقايضات والتآزر على المدى القصير والطويل بين أهداف CSA. تكشف نتائج المحاكاة عن تقدم قصير الأجل نحو هدف زيادة الإنتاجية والدخل، مع المفاضلة في أهداف إزالة غازات الدفيئة والتكيف مع المناخ والمرونة. على المدى الطويل، بعد عام 2035، تؤدي الممارسات والتقنيات والسياسات الزراعية الحالية داخل وخارج حدود CSV إلى مقايضات عبر جميع أهداف CSA الثلاثة، ويتم عكس التقدم المحرز نحو تحقيق هذه الأهداف. وبالتالي، يُظهر سلوك نظام CSV نمطًا "أفضل قبل الأسوأ". يوضح التحليل نهجًا، يأخذ في الاعتبار في وقت واحد جميع أهداف CSA الثلاثة، لتحديد أوجه التآزر والتخفيف من المفاضلات في نظام غذائي بأكمله. تشير النتائج إلى أن فهم ديناميكيات النظم الغذائية هو مقدمة لتحولها المستدام. وسيستتبع هذا التحول تغييرات في أهداف النظام الغذائي وهيكله مع إيلاء اهتمام متساوٍ للنتائج القصيرة والطويلة الأجل.

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    Agricultural Systems
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      Agricultural Systems
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    Authors: Issa Ouedraogo; Ndeye Seynabou Diouf; Mathieu Ouédraogo; Ousmane Ndiaye; +1 Authors

    West Africa is a very vulnerable part of the world to the impacts of climate change due to a combination of exposure and low adaptive capacity. Climate change has induced an increase in rainfall variability which in turn has affected the availability of water resources, ecosystem services and agricultural production. To adapt to the increased aridity, farmers have used indigenous and modern coping strategies such as soil and water conservation techniques, the use of drought-tolerant crops and varieties, crop diversification, etc., and lately, climate information services (CIS). The latter, according to the discourses, has positively contributed to suitable decision-making in terms of farming, pastoral and fishing management systems. However, the scientific documentation of the engagement approaches, the uptake of the CIS and the ways the delivered information is being used, as well as feedback from the users, is lacking. Additionally, in most of the cases where CIS are introduced, the disconnect between the users and producers of the CIS seems to undercut large-scale uptake. The objective of this paper is to examine the approach used to involve stakeholders in the CIS uptake process in Senegal. We analyzed the experiences and lessons learnt in the country where various CIS products were introduced using participatory methods (stakeholder consultations, interviews, field demonstrations, training workshops, etc.) and innovative stressors (SMS, voice messages, radios, mobile applications, etc.) to effectively involve producers, technicians and policy-makers. Results showed that 16 relevant CIS have been produced out of 27 identified by the various users; 11 CIS diffusion channels have been developed out of 13 requested; 27 climate advisory bodies (MWGs) have been created in 27 districts out of 30 districts in the study zone; about 6800 users have been trained directly and indirectly to effectively use CIS and about 8500 people are receiving CIS via SMS, voice messaging and emails. The opportunities for CIS uptake as well as the challenges that may impede the long-term sustainability of CIS upscaling in the country are highlighted. Recommendations that will improve and sustain the governance system of CIS in Senegal and the rest of West Africa include the involvement of private sectors in the chain of production, delivery and training, and the inciting of producers to largely subscribe to the weather-based index insurance.

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    Climate
    Article . 2018 . Peer-reviewed
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    Article . 2018
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      Climate
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    Authors: Robert B. Zougmoré; Samuel T. Partey; Mathieu Ouédraogo; Bamidele Oluwarotimi Omitoyin; +5 Authors

    De nombreuses projections de l'impact du changement climatique sur les secteurs des cultures, de l'élevage et de la production halieutique de l'agriculture africaine sont rapportées dans la littérature. Cependant, ils peuvent être sans doute trop généraux pour comprendre l'ampleur de l'impact et pour éclairer les stratégies d'adaptation et les efforts d'élaboration de politiques adaptés à la promotion d'une agriculture intelligente face au climat dans la seule région de l'Afrique de l'Ouest. Ce document a été synthétisé à partir de plusieurs publications scientifiques et visait à fournir des informations à jour sur les impacts du changement climatique, les stratégies d'adaptation, les politiques et les mécanismes institutionnels que chaque sous-secteur agricole avait mis en place pour faire face au changement climatique et à ses problèmes connexes en Afrique de l'Ouest. Pour chaque sous-secteur (culture, pêche et élevage), l'état actuel, les impacts du changement climatique, les stratégies d'atténuation et d'adaptation ont été analysés. En outre, nous avons examiné les récentes initiatives politiques dans la région qui favorisent le développement et l'adoption d'options agricoles intelligentes face au climat pour améliorer la résilience des systèmes agricoles et les moyens de subsistance des petits exploitants face aux risques liés au changement climatique. Des niveaux communautaire aux niveaux national et régional, diverses stratégies et politiques sont également prises pour guider les actions et les investissements en faveur d'une agriculture intelligente face au climat en Afrique de l'Ouest. En la literatura se informan muchas proyecciones del impacto del cambio climático en los sectores de producción agrícola, ganadera y pesquera de la agricultura africana. Sin embargo, podría decirse que son demasiado generales para comprender la magnitud del impacto y para informar las estrategias de adaptación y los esfuerzos de desarrollo de políticas que se adaptan a la promoción de la agricultura climáticamente inteligente solo en la región de África Occidental. Este documento se sintetizó a partir de varias publicaciones académicas y tenía como objetivo proporcionar información actualizada sobre los impactos del cambio climático, las estrategias de adaptación, las políticas y los mecanismos institucionales que cada subsector agrícola había implementado para abordar el cambio climático y sus problemas relacionados en África Occidental. Para cada subsector (cultivo, pesquería y ganadería), se ha analizado el estado actual, los impactos del cambio climático, las estrategias de mitigación y adaptación. Además, revisamos las iniciativas políticas recientes en la región que fomentan el desarrollo y la adopción de opciones agrícolas climáticamente inteligentes para mejorar la resiliencia de los sistemas agrícolas y los medios de vida de los pequeños agricultores a los riesgos del cambio climático. Desde la comunidad hasta los niveles nacional y regional, también se están adoptando diversas estrategias y políticas para guiar las acciones y la inversión en la agricultura climáticamente inteligente en África Occidental. Many projections of the impact of climate change on the crop, livestock and fishery production sectors of African agriculture are reported in the literature. However, they may be arguably too general to understand the magnitude of impact and to inform adaptation strategies and policy development efforts that are tailored to promoting climate-smart agriculture in the West African region alone. This paper was synthesized from several scholarly literature and aimed at providing up-to-date information on climate change impacts, adaptation strategies, policies and institutional mechanisms that each agriculture subsector had put in place in dealing with climate change and its related issues in West Africa. For each subsector (crop, fishery and livestock), the current status, climate change impacts, mitigation and adaption strategies have been analyzed. In addition, we reviewed recent policy initiatives in the region that foster the development and adoption of climate-smart agricultural options to improve resilience of farming systems and livelihoods of smallholder farmers to climate change risks. From community to national and regional levels, various strategies and policies are also being taken to guide actions and investment for climate-smart agriculture in West Africa. تم الإبلاغ عن العديد من التوقعات لتأثير تغير المناخ على قطاعات إنتاج المحاصيل والثروة الحيوانية والسمكية في الزراعة الأفريقية في الأدبيات. ومع ذلك، قد تكون عامة للغاية لفهم حجم التأثير ولتوجيه استراتيجيات التكيف وجهود وضع السياسات المصممة خصيصًا لتعزيز الزراعة الذكية مناخيًا في منطقة غرب إفريقيا وحدها. تم تجميع هذه الورقة من العديد من المؤلفات العلمية وتهدف إلى توفير معلومات محدثة عن آثار تغير المناخ واستراتيجيات التكيف والسياسات والآليات المؤسسية التي وضعها كل قطاع فرعي زراعي في التعامل مع تغير المناخ والقضايا ذات الصلة به في غرب أفريقيا. بالنسبة لكل قطاع فرعي (المحاصيل ومصائد الأسماك والثروة الحيوانية)، تم تحليل الوضع الحالي وآثار تغير المناخ واستراتيجيات التخفيف والتكيف. بالإضافة إلى ذلك، استعرضنا مبادرات السياسة الأخيرة في المنطقة التي تعزز تطوير واعتماد خيارات زراعية ذكية مناخياً لتحسين مرونة النظم الزراعية وسبل عيش المزارعين أصحاب الحيازات الصغيرة في مواجهة مخاطر تغير المناخ. من المستوى المجتمعي إلى المستوى الوطني والإقليمي، يتم أيضًا اتخاذ استراتيجيات وسياسات مختلفة لتوجيه الإجراءات والاستثمار من أجل الزراعة الذكية مناخيًا في غرب إفريقيا.

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    Agriculture & Food Security
    Article . 2016 . Peer-reviewed
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    Authors: Djibril S. Dayamba; Catherine Ky-Dembele; Jules Bayala; Peter Dorward; +9 Authors

    Recently, a new approach to extension and climate information services, namely Participatory Integrated Climate Services for Agriculture (PICSA) has been developed. PICSA makes use of historical climate records,participatory decision-making tools and forecasts to help farmers identify and better plan livelihood options that are suited to local climate features and farmers’ own circumstances. This approach was implemented in 2016 in two sites in Senegal and Mali, with 57 and 47 farmers, respectively. At the end of the growing season, these farmers were surveyed to explore their perceptions on the use of the approach. In Senegal and Mali, respectively 97% and 76% of the respondents found the approach ‘very useful’. The approach enabled farmers to make strategic plans long before the season, based on their improved knowledge of local climate features. Moreover,evidence demonstrates that PICSA stimulated farmers to consider and then implement a range of innovations which included: (i) changes in timing of activities such as sowing dates, (ii) implementing soil and water management practices, (iii) selection of crop varieties, (iv) fertiliser management and (v) adaptation of plans for the season (farm size, etc.) to the actual resources available to them. The study also demonstrated the potential of farmer-to-farmer extension in scaling up the approach, which is of great interest especially in the current context of limited extension services in the West African region.

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    Authors: Samuel Saaka Buah; H. Ibrahim; Mavis Derigubah; Martin Kuzie; +4 Authors

    Les facteurs les plus limitants pour la production durable de maïs dans les systèmes de petites exploitations agricoles d'Afrique subsaharienne, en particulier dans la zone agroécologique de la savane, sont le régime irrégulier des précipitations et la faible fertilité des sols. Des recherches ont été menées auprès de petits agriculteurs en 2013 et 2014 dans deux communautés de la région du Haut-Ouest du Ghana pour évaluer les effets de l'engrais minéral NPK (64-38-38 kg ha−1 N-P2O5-K2O, respectivement) sur la croissance et le rendement du maïs à Bompari, et 375 kg ha−1 d'engrais YaraLegume™ (0-18-13 NPK + 3 CaO + 2 MgO + 4 S) sur la croissance et le rendement du soja à Doggoh, sans labour (en utilisant l'application de glyphosate avant la plantation) et le travail du sol conventionnel (en utilisant une houe manuelle). Les rendements céréaliers moyens du maïs et du soja étaient plus élevés en 2014 qu'en 2013. Au cours des deux années, le travail sans labour et le travail conventionnel du sol ont eu un effet similaire sur la hauteur des plants de soja, les gousses par plant et la production de matière sèche hors sol. En moyenne par rapport au traitement par engrais, le rendement céréalier du soja sans labour était 51 % plus élevé par rapport au soja labouré en 2014 seulement. Le rendement céréalier moyen du maïs sans labour était supérieur de 68 % à celui du maïs labouré en 2013 seulement. Quelle que soit la méthode de travail du sol, l'application d'engrais a considérablement augmenté les rendements en maïs et en graines de soja. L'application d'engrais sur le soja a entraîné une augmentation de 59 % (193 kg ha−1) et de 54 % (474 kg ha−1) des rendements céréaliers en 2013 et 2014, respectivement, par rapport à l'absence de traitement par engrais. Le rendement céréalier moyen du maïs était de 140 et 252 % plus élevé avec le traitement par engrais en 2013 et 2014, respectivement. Le système sans labour a permis de réaliser des économies grâce à une main-d' œuvre réduite, principalement pour le contrôle des mauvaises herbes. Les résultats de ces études ont montré que l'absence de labour avec engrais, que ce soit pour le maïs ou le soja, entraînait généralement les rendements céréaliers les plus élevés. Le non-labour a également donné les rendements économiques les plus élevés. Les agriculteurs peuvent obtenir de meilleurs rendements sur l'argent investi dans les herbicides pour la production de maïs et de soja sans labour qu'avec leur pratique traditionnelle, même sur des sols de savane dégradés avec de faibles niveaux de nutriments disponibles pour les plantes. Los factores más limitantes para la producción sostenible de maíz en los sistemas agrícolas a pequeña escala del África subsahariana, especialmente en la zona agroecológica de la sabana, son el patrón errático de las precipitaciones y la baja fertilidad del suelo. Se realizó una investigación con pequeños agricultores en 2013 y 2014 en dos comunidades de la región del Alto Oeste de Ghana para evaluar los efectos del fertilizante mineral NPK (64-38-38 kg ha-1 N–P2O5–K2O, respectivamente) sobre el crecimiento y el rendimiento del maíz en Bompari, y 375 kg ha-1 de fertilizante YaraLegume™ (0-18-13 NPK + 3 CaO + 2 MgO + 4 S) sobre el crecimiento y el rendimiento de la soja en Doggoh, sin labranza (utilizando la aplicación previa a la siembra de glifosato) y la labranza convencional (utilizando azada manual). Los rendimientos medios de granos tanto de maíz como de soja fueron más altos en 2014 que en 2013. En ambos años, la labranza cero y la labranza convencional tuvieron un efecto similar en la altura de la planta de soja, las vainas por planta y la producción de materia seca sobre el suelo. Con un promedio sobre el tratamiento con fertilizantes, el rendimiento de grano de la soja sin labranza fue 51% mayor en comparación con la soja labrada solo en 2014. El rendimiento medio de grano del maíz sin labranza fue un 68% mayor que el del maíz labrado solo en 2013. Independientemente del método de labranza, la aplicación de fertilizantes aumentó significativamente los rendimientos de los granos de maíz y soja. La aplicación de fertilizantes a la soja dio como resultado un aumento del 59% (193 kg ha-1) y del 54% (474 kg ha-1) en los rendimientos de granos en 2013 y 2014, respectivamente, en comparación con el no tratamiento con fertilizantes. El rendimiento medio de grano de maíz fue 140 y 252% mayor con el tratamiento con fertilizantes en 2013 y 2014, respectivamente. El sistema de labranza cero mostró ahorros de costes debido a la reducción de la mano de obra principalmente para el control de malezas. Los resultados de estos estudios mostraron que la labranza cero con fertilizantes, ya sea para maíz o soja, generalmente dio como resultado los mayores rendimientos de granos. La labranza cero también dio los mayores rendimientos económicos. Los agricultores pueden obtener mejores rendimientos del dinero invertido en herbicidas para producir maíz y soja sin labranza que con su práctica tradicional, incluso en suelos de sabana degradados con bajos niveles de nutrientes disponibles para las plantas. The most limiting factors for sustainable maize production in smallholder farming systems of sub-Saharan Africa, especially the savanna agro-ecological zone, are erratic rainfall pattern and low soil fertility. Research was conducted with smallholder farmers in 2013 and 2014 in two communities in the Upper West Region of Ghana to evaluate the effects of NPK mineral fertilizer (64–38–38 kg ha−1 N–P2O5–K2O, respectively) on growth and yield of maize at Bompari, and 375 kg ha−1 of YaraLegume™ fertilizer (0–18–13 NPK + 3 CaO + 2 MgO + 4 S) on growth and yield of soybean at Doggoh, under no-tillage (using pre-plant application of glyphosate) and conventional tillage (using hand hoe). Mean grain yields of both maize and soybean were higher in 2014 than 2013. In both years, no-tillage and conventional tillage had similar effect on soybean plant height, pods per plant and aboveground dry matter production. Averaging over fertilizer treatment, grain yield of no-tillage soybean was 51% higher when compared with tilled soybean in 2014 only. Mean grain yield of no-tillage maize was 68% higher than that of tilled maize in 2013 only. Regardless of tillage method, fertilizer application significantly increased maize and soybean grain yields. Application of fertilizer to soybean resulted in 59% (193 kg ha−1) and 54% (474 kg ha−1) increase in grain yields in 2013 and 2014, respectively, over no fertilizer treatment. Mean grain yield of maize was 140 and 252% higher with fertilizer treatment in 2013 and 2014, respectively. No-till system showed cost savings due to reduced labour mainly for weed control. The results of these studies showed that no-tillage with fertilizer, whether for maize or soybean, generally resulted in the highest grain yields. No-tillage also gave the highest economic returns. Farmers can get better returns to the money invested in herbicide for producing maize and soybean under no-till than with their traditional practice even on degraded savanna soils with low levels of plant available nutrients. تتمثل العوامل الأكثر تقييدًا لإنتاج الذرة المستدام في أنظمة زراعة أصحاب الحيازات الصغيرة في أفريقيا جنوب الصحراء الكبرى، وخاصة منطقة السافانا الزراعية الإيكولوجية، في نمط هطول الأمطار غير المنتظم وانخفاض خصوبة التربة. تم إجراء بحث مع صغار المزارعين في عامي 2013 و 2014 في مجتمعين في المنطقة الغربية العليا من غانا لتقييم آثار الأسمدة المعدنية NPK (64-38-38 كجم هكتار-1 N - P2O5 - K2O، على التوالي) على نمو ومحصول الذرة في بومباري، و 375 كجم هكتار-1 من سماد YaraLegume™ (0-18-13 NPK + 3 CaO + 2 MgO + 4 S) على نمو ومحصول فول الصويا في Doggoh، تحت الحراثة (باستخدام تطبيق ما قبل الزرع من الغليفوسات) والحراثة التقليدية (باستخدام مجرفة اليد). كان متوسط غلة الحبوب لكل من الذرة وفول الصويا أعلى في عام 2014 مقارنة بعام 2013. في كلتا السنتين، كان للحرث التقليدي وعدم الحراثة تأثير مماثل على ارتفاع نبات فول الصويا، والقرون لكل نبات وإنتاج المواد الجافة فوق الأرض. في المتوسط على معالجة الأسمدة، كان إنتاج الحبوب من فول الصويا بدون حرث أعلى بنسبة 51 ٪ مقارنة بفول الصويا الحارث في عام 2014 فقط. كان متوسط محصول الحبوب من الذرة بدون حراثة أعلى بنسبة 68 ٪ من محصول الذرة المحروثة في عام 2013 فقط. بغض النظر عن طريقة الحراثة، أدى استخدام الأسمدة إلى زيادة كبيرة في محصول الذرة وحبوب فول الصويا. أدى استخدام الأسمدة على فول الصويا إلى زيادة بنسبة 59 ٪ (193 كجم هكتار-1) و 54 ٪ (474 كجم هكتار-1) في غلة الحبوب في عامي 2013 و 2014، على التوالي، دون معالجة الأسمدة. كان متوسط محصول الذرة من الحبوب أعلى بنسبة 140 و 252 ٪ مع معالجة الأسمدة في عامي 2013 و 2014 على التوالي. أظهر نظام عدم الحراثة وفورات في التكاليف بسبب انخفاض العمالة بشكل رئيسي لمكافحة الأعشاب الضارة. أظهرت نتائج هذه الدراسات أن عدم الحرث بالأسمدة، سواء للذرة أو فول الصويا، أدى عمومًا إلى أعلى إنتاجية للحبوب. كما أعطى عدم الحرث أعلى عوائد اقتصادية. يمكن للمزارعين الحصول على عوائد أفضل للأموال المستثمرة في مبيدات الأعشاب لإنتاج الذرة وفول الصويا دون حراثة مقارنة بممارساتهم التقليدية حتى على تربة السافانا المتدهورة ذات المستويات المنخفضة من المغذيات النباتية المتاحة.

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