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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: African Capacity Building Foundation;

    Le Rapport sur les Capacités en Afrique (RICA) et les indicateurs qu'il propose offrent les intrants nécessaires pour éclairer les choix en matière d'appui au renforcement des capacités. Pour la plupart des pays, l'environnement institutionnel est très propice, et les processus de mise en œuvre sont en place. Cependant, les résultats de développement ne suivent pas, et encore moins les résultats en matière de renforcement des capacités. Le rapport et ses indicateurs soulignent également les réformes institutionnelles et en matière de règlementation qui sont nécessaires pour mieux soutenir les partenariats public-privé en matière d'investissement et de renforcement des capacités, ainsi que les investissements nécessaires pour renforcer davantage l'administration publique. De même, ils soulignent l'importance de la volonté politique dans l'inclusion sociale et le développement. Chaque rapport présente un thème annuel d'une importance clé pour le programme de développement de l'Afrique. Cette année, l'accent est mis sur les exigences de capacités pour l'intégration régionale, qui font partie du mandat de l'ACBF, et sur les capacités des communautés économiques régionales (CER). Le rapport dégage les points ci-après qui sont nécessaires pour renforcer les CER : intégrer le renforcement des capacités dans l'ensemble des efforts visant à réaliser un développement durable ; assurer des ressources administratives et financières suffisantes ; mettre l'accent sur la rétention et l'utilisation des compétences, et pas seulement sur leur acquisition ; et assurer le suivi-évaluation de tous les efforts de renforcement des capacités. Dans le cadre de l'intégration régionale, la dimension capacités est essentielle de nos jours puisque les pays, les CER, les institutions régionales spécialisées et les organisations régionales de développement, sont en train de développer des cadres stratégiques régionaux et de renforcer leurs capacités en vue de poursuivre l'intégration régionale à travers le continent. Les nombreuses ...

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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: Manlay, Raphaël J.;

    Organic matter (OM) is a multi-purpose tool in smallholder mixed-farming systems of West African savannas (WAS). It provides people and animals with energy, nutrients and construction materials. Its cycling also ensures the biological maintenance of the system, mainly through allowing and manuring. In the WAS, population grows faster than yields of food crops. Since access to industrial inputs will remain low in the coming years, OM availability can be used as an indicator of sustainability of local farming systems. Carbon (C), nitrogen (N) and phosphorus (P; total in plant, available in soil and noted POD) budgets were thus quantified in a tropical mixed-farming system of southern Senegal to assess its viability from the plot to the village levels.The village territory of the study showed a ring-like, compound-centred organisation. Growingintensification of fertilization and cropping practices, from the periphery to the compounds, led to the distinction of (1) a plateau bush ring under semi-permanent cultivation (2) a compound ring under continuous cultivation receiving manure from night corralling and household wastes (3) lowland, seasonally flooded, rice fields. Soils were sandy Lixisols, except in the lowland (Gleysols). Human and livestock densities were respectively 33 inhabitants and 51 tropical livestock units km-2.According to the plot study set at the beginning of the rainy season, stocks in plant and soil (down to 40 cm deep) increased from 27.8 tC, 2.03 tN and 17.3 kgP ha-1 in groundnut crops of the bush ring to 54.7 tC, 2.63 tN and 43.5 kgP ha-1 in fallows aged more than 10 years. Plant biomass accounted for nearly all of the rise. In soil, fast increase within the very first year (+20 %) was followed by stagnation (C, N) or even decrease (POD) of stocks. In six more or less manured cereal fields of the compound ring, stocks were 29.9 tC, 2.30 tN and 83 kgP ha-1. Large increase of soil POD stocks in comparison to cropped bush fields was recorded at all depths and in all plots. Although significant, increases of soil C and N stocks were restricted to the 0-10 cm layer, and occurred mainly in fields adjoining farmyards, which received organic inputs with highest chemical inputs. Highest C, N and P amounts were found in lowland rice fields as a result of soil fine texture. To account for the weak response of local sandy soils to management, a plant-soil conceptual model, reassessing the thermodynamical signification of soil organic carbon cycling was proposed. In these tropical sandy soils, biota strongly controls soil physical properties and nutrient availability to plant. Perennial rooting systems, or manure exogenous inputs, are thus needed to sustain theecosystem structural and functional integrity, since they fuel the soil biota with C-mediated energy and nutrients.Integrative estimates for manageable stocks of the whole village territory were 29.7 tC, 1.52 tN and 28.6 kgP ha-1 (soil stocks: 0-20 cm layer considered only) in 1997. Main C pools were soil (52 %), woody above-ground biomass (22 %) and stumps (8 %). Crop harvest, livestock, and wood and straw collecting were responsible for respectively 27, 59 and 14 % of the C outflows from the area exploited by the village.Livestock accounted for 79-85 % of the C, N and P returns to the soil. As result of these transfers large C inputs were brought to the compound ring (3.8 tC ha-1 y-1). N and P depletion of the system amounted to 4 kgN and 1 kgP ha-1 y-1, suggesting that the system was close to nutrient balance.Under current demographic growth rate, simulated C depletion of the village farming system may reach 0.38 tC ha-1 y-1 during the next three decades; meanwhile C flows related to livestock activity and crop and wood harvest should double. The viability of the system might thus be called into question within the next few years, if practices of cropping and animal husbandry are not intensified. La matière organique (MO) remplit de multiples fonctions dans les systèmes agro-pastoraux ouest-africains. Or l'offre en ressource organique y diminue depuis plusieurs décennies. Afin d'estimer la viabilité d'un terroir agro-pastoral dans le sud du Sénégal, les bilans (stocks et flux) du carbone (C), de l'azote (N) et du phosphore (P ; assimilable seulement dans le sol et noté POD) y ont donc été établis.Le terroir choisi était organisé en auréoles, avec une intensification croissante des pratiques de la périphérie (auréole de brousse) vers le village (champs de case).Les stocks dans le système sol-plante étaient de 54,7 tC, 2,63 tN et 43,5 kgP ha-1 dans les jachères âgées, soit des croîts respectifs de 97, 29 et 251 % par rapport aux cultures de brousse (l'augmentation ayant lieu essentiellement dans la biomasse végétale). Les stocks mesurés dans le sol des champs de case étaient supérieurs à ceux des cultures de brousse, essentiellement dans l'horizon 0-10 cm. Cependant, la faible réponse globale des stocks de carbone des sols sableux à la jachère et à la fumure ne peut être interprétée qu'en réévaluant le rôle bio-thermodynamique joué par le carbone dans l'intégrité des agroécosystèmes locaux.Les stocks moyens sur le terroir contrôlables par l'homme furent estimés à 29,7 tC, 1,52 tN and 28,6 kgP ha-1 en 1997. Le carbone était stocké surtout dans le sol. Elevage, récoltes et collecte de bois ont représenté respectivement 59, 27 et 14 % des prélèvements de carbone dans le terroir. Grâce à eux, des flux importants de carbone ont été établis vers les champs de case (3,8 tC ha-1 an-1), et les pertes minérales globales ont été estimées à 4 kgN et 1 kgP ha-1 an-1. Le terroir était donc proche de l'équilibre minéral.Mais selon la dynamique démographique actuelle, la perte de carbone pourrait atteindre 0,38 tC ha-1 an-1, et la demande en carbone doubler durant les 30 prochaines années. Sans intensification des pratiques, ceci remettrait en cause la viabilité du système.

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    HAL-IRD
    Doctoral thesis . 2000
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    VTechWorks
    Doctoral thesis . 2000
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      Doctoral thesis . 2000
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      Doctoral thesis . 2000
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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: Poncet, Y.; Quensiere, J.;

    Metadata only record The article examines the application of a geographical information system (GIS) project to the sustainable development of a natural resource within the context of a fisheries production system in the Central Delta of the River Niger in Mali. The project, which takes into account the specific characteristics of the natural and social environment, results from the findings of a research programme carried out between 1986-94 to investigate the organization and dynamics of a production sector which is based on the exploitation of a natural renewable resource. The Central Delta of the Niger contributes around 90% annually of total fish production in Mali. Over recent years, however, increasing interest from developers, restrictions on fishing and conflict between producers have caused a crisis of production. Through the development of a system of spatial representation of the interactions between the social and natural systems of the area, the objectives of the GIS are to solve the conflicts associated with resource use, develop an effective system of resource management and ensure the long term sustainability of the resource. (CAB Abstract)

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    VTechWorks
    Other literature type . 1996
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  • Authors: Georges Dossou; Jadix Saïnou; Lucien Agbandji; Précieux Christian Behanzin;

    L’objet de ce travail est d’analyser les déterminants de la demande résidentielle d’énergie électrique au Bénin. L’étude a été réalisée sur 1089 ménages en utilisant les données de l’Enquête sur la Consommation d’Electricité au Bénin (ECEB) conduite en 2014 par l’Institut National de la Statistique et de l’Analyse Economique. Après avoir procédé à une analyse descriptive univariée et bivariée, une modélisation économétrique en données de panel a été mise en œuvre. Le modèle d’analyse de la demande conditionnelle de Dalen et Larsen (2012) utilisé à cet effet a révélé que le sexe du chef de ménage, la taille et le revenu du ménage ainsi que la possession d’appareils électroménagers tels que le ventilateur, le brasseur, le réfrigérateur et la radio influencent la demande résidentielle globale d’énergie électrique des départements contrairement au milieu de résidence (urbain ou rural) et au prix du kilowattheure d’électricité. Repères et Perspectives Economiques, Vol. 4, No 2 (2020)

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  • Authors: Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; +17 Authors

    No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.

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    Authors: Bezuneh, T. (ed.); Emechebe, A. M. (ed.); Sedgo, J. (ed.); Ouedraogo, M. (ed.);

    Metadata only record The paper proposes a theory of technology development for semi-arid regions. It then evaluates the theory by reviewing the characteristics of technologies successfully introduced into the regions. Modeling is then used to identify some constraints to further technology introduction of the type proposed. Some specific policy recommendations to accelerate technology introduction are made.

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    Other literature type . 1997
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  • Authors: Michel Ange, Régis;

    Durant deux années, Haïti est frappé successivement de plusieurs catastrophes, le cout humain est considérable, comment faire face? Oxfam tente alors de renouer des liens avec une organisation locale avec qui il y avait eu des différends dans le passé. série « Partnering for Impact » Le partenariat est le pilier de la façon dont Oxfam conçoit le monde et contribue activement au changement. Toutes nos activités sont guidées par ce principe: du développement à long terme à l’intervention humanitaire et la prévention des catastrophes, en passant par les campagnes et le plaidoyer. Mais que cela signifie-t-il pour notre personnel? Chaque jour apporte de nouveaux défis et de nouvelles opportunités, comment gérer tout cela ? Suite a un atelier d’écriture, cette série d’études de cas a été développé afin de partager et d’examiner ce qu’on apprit des professionnels confirmés a propos du partenariat. ; Durant deux années, Haïti est frappé successivement de plusieurs catastrophes, le cout humain est considérable, comment faire face? Oxfam tente alors de renouer des liens avec une organisation locale avec qui il y avait eu des différends dans le passé. série « Partnering for Impact » Le partenariat est le pilier de la façon dont Oxfam conçoit le monde et contribue activement au changement. Toutes nos activités sont guidées par ce principe: du développement à long terme à l’intervention humanitaire et la prévention des catastrophes, en passant par les campagnes et le plaidoyer. Mais que cela signifie-t-il pour notre personnel? Chaque jour apporte de nouveaux défis et de nouvelles opportunités, comment gérer tout cela ? Suite a un atelier d’écriture, cette série d’études de cas a été développé afin de partager et d’examiner ce qu’on apprit des professionnels confirmés a propos du partenariat.

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    Authors: de Boer, F.; Kessler, J. J.;

    Metadata only record This document presents an analysis of Fulani pastoral farming systems that focuses on how pastoralists use silvopastoral land. It aims to provide the missing knowledge needed to implement the resource management ('gestion des terroirs') approach at village level. In this region the influence of pastoral land use on the environment appears to be less pronounced than that of crop cultivation, even though levels of animal production are reasonable. The carrying capacity of the region has not yet been attained. Current constraints to pastoral land use in the region arise from the encroachment of cropland at the expense of pastoral land, and the increase in animal numbers. To develop sustainable natural resource management at village level that includes Fulani pastoral land use, the key factors appear to be the integration of livestock husbandry and cropland cultivation at household level, agreements between pastoralists and cropland farmers on land tenure and resource management, and support targeting of Fulani households (which have so far been neglected). Specific recommendations are given. (CAB Abstract)

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    Other literature type . 1994
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      Other literature type . 1994
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    Authors: Gohin, Alexandre; Gohin, Alexandre;

    [Paper in French] The European public policy in favor of the biodiesel consumption is highly debated. Available estimates of the induced land use changes conclude that this policy is inefficient to reduce emissions of GreenHouse Gas. We show that the crop yield evolutions in these estimates are significantly lower than the observed and expected evolutions. This difference is directly related to biased calibration choice of behavioral parameters. We show using the GTAP-BIO framework that a consistent calibration of these parameters leads to a strong reduction (by around 80% in the long run) of the land use changes and induced emissions.

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    ProdInra
    External research report . 2013
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    HAL INRAE
    Report . 2013
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    https://dx.doi.org/10.22004/ag...
    Other literature type . 2013
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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: African Capacity Building Foundation;

    Le Rapport sur les Capacités en Afrique (RICA) et les indicateurs qu'il propose offrent les intrants nécessaires pour éclairer les choix en matière d'appui au renforcement des capacités. Pour la plupart des pays, l'environnement institutionnel est très propice, et les processus de mise en œuvre sont en place. Cependant, les résultats de développement ne suivent pas, et encore moins les résultats en matière de renforcement des capacités. Le rapport et ses indicateurs soulignent également les réformes institutionnelles et en matière de règlementation qui sont nécessaires pour mieux soutenir les partenariats public-privé en matière d'investissement et de renforcement des capacités, ainsi que les investissements nécessaires pour renforcer davantage l'administration publique. De même, ils soulignent l'importance de la volonté politique dans l'inclusion sociale et le développement. Chaque rapport présente un thème annuel d'une importance clé pour le programme de développement de l'Afrique. Cette année, l'accent est mis sur les exigences de capacités pour l'intégration régionale, qui font partie du mandat de l'ACBF, et sur les capacités des communautés économiques régionales (CER). Le rapport dégage les points ci-après qui sont nécessaires pour renforcer les CER : intégrer le renforcement des capacités dans l'ensemble des efforts visant à réaliser un développement durable ; assurer des ressources administratives et financières suffisantes ; mettre l'accent sur la rétention et l'utilisation des compétences, et pas seulement sur leur acquisition ; et assurer le suivi-évaluation de tous les efforts de renforcement des capacités. Dans le cadre de l'intégration régionale, la dimension capacités est essentielle de nos jours puisque les pays, les CER, les institutions régionales spécialisées et les organisations régionales de développement, sont en train de développer des cadres stratégiques régionaux et de renforcer leurs capacités en vue de poursuivre l'intégration régionale à travers le continent. Les nombreuses ...

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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: Manlay, Raphaël J.;

    Organic matter (OM) is a multi-purpose tool in smallholder mixed-farming systems of West African savannas (WAS). It provides people and animals with energy, nutrients and construction materials. Its cycling also ensures the biological maintenance of the system, mainly through allowing and manuring. In the WAS, population grows faster than yields of food crops. Since access to industrial inputs will remain low in the coming years, OM availability can be used as an indicator of sustainability of local farming systems. Carbon (C), nitrogen (N) and phosphorus (P; total in plant, available in soil and noted POD) budgets were thus quantified in a tropical mixed-farming system of southern Senegal to assess its viability from the plot to the village levels.The village territory of the study showed a ring-like, compound-centred organisation. Growingintensification of fertilization and cropping practices, from the periphery to the compounds, led to the distinction of (1) a plateau bush ring under semi-permanent cultivation (2) a compound ring under continuous cultivation receiving manure from night corralling and household wastes (3) lowland, seasonally flooded, rice fields. Soils were sandy Lixisols, except in the lowland (Gleysols). Human and livestock densities were respectively 33 inhabitants and 51 tropical livestock units km-2.According to the plot study set at the beginning of the rainy season, stocks in plant and soil (down to 40 cm deep) increased from 27.8 tC, 2.03 tN and 17.3 kgP ha-1 in groundnut crops of the bush ring to 54.7 tC, 2.63 tN and 43.5 kgP ha-1 in fallows aged more than 10 years. Plant biomass accounted for nearly all of the rise. In soil, fast increase within the very first year (+20 %) was followed by stagnation (C, N) or even decrease (POD) of stocks. In six more or less manured cereal fields of the compound ring, stocks were 29.9 tC, 2.30 tN and 83 kgP ha-1. Large increase of soil POD stocks in comparison to cropped bush fields was recorded at all depths and in all plots. Although significant, increases of soil C and N stocks were restricted to the 0-10 cm layer, and occurred mainly in fields adjoining farmyards, which received organic inputs with highest chemical inputs. Highest C, N and P amounts were found in lowland rice fields as a result of soil fine texture. To account for the weak response of local sandy soils to management, a plant-soil conceptual model, reassessing the thermodynamical signification of soil organic carbon cycling was proposed. In these tropical sandy soils, biota strongly controls soil physical properties and nutrient availability to plant. Perennial rooting systems, or manure exogenous inputs, are thus needed to sustain theecosystem structural and functional integrity, since they fuel the soil biota with C-mediated energy and nutrients.Integrative estimates for manageable stocks of the whole village territory were 29.7 tC, 1.52 tN and 28.6 kgP ha-1 (soil stocks: 0-20 cm layer considered only) in 1997. Main C pools were soil (52 %), woody above-ground biomass (22 %) and stumps (8 %). Crop harvest, livestock, and wood and straw collecting were responsible for respectively 27, 59 and 14 % of the C outflows from the area exploited by the village.Livestock accounted for 79-85 % of the C, N and P returns to the soil. As result of these transfers large C inputs were brought to the compound ring (3.8 tC ha-1 y-1). N and P depletion of the system amounted to 4 kgN and 1 kgP ha-1 y-1, suggesting that the system was close to nutrient balance.Under current demographic growth rate, simulated C depletion of the village farming system may reach 0.38 tC ha-1 y-1 during the next three decades; meanwhile C flows related to livestock activity and crop and wood harvest should double. The viability of the system might thus be called into question within the next few years, if practices of cropping and animal husbandry are not intensified. La matière organique (MO) remplit de multiples fonctions dans les systèmes agro-pastoraux ouest-africains. Or l'offre en ressource organique y diminue depuis plusieurs décennies. Afin d'estimer la viabilité d'un terroir agro-pastoral dans le sud du Sénégal, les bilans (stocks et flux) du carbone (C), de l'azote (N) et du phosphore (P ; assimilable seulement dans le sol et noté POD) y ont donc été établis.Le terroir choisi était organisé en auréoles, avec une intensification croissante des pratiques de la périphérie (auréole de brousse) vers le village (champs de case).Les stocks dans le système sol-plante étaient de 54,7 tC, 2,63 tN et 43,5 kgP ha-1 dans les jachères âgées, soit des croîts respectifs de 97, 29 et 251 % par rapport aux cultures de brousse (l'augmentation ayant lieu essentiellement dans la biomasse végétale). Les stocks mesurés dans le sol des champs de case étaient supérieurs à ceux des cultures de brousse, essentiellement dans l'horizon 0-10 cm. Cependant, la faible réponse globale des stocks de carbone des sols sableux à la jachère et à la fumure ne peut être interprétée qu'en réévaluant le rôle bio-thermodynamique joué par le carbone dans l'intégrité des agroécosystèmes locaux.Les stocks moyens sur le terroir contrôlables par l'homme furent estimés à 29,7 tC, 1,52 tN and 28,6 kgP ha-1 en 1997. Le carbone était stocké surtout dans le sol. Elevage, récoltes et collecte de bois ont représenté respectivement 59, 27 et 14 % des prélèvements de carbone dans le terroir. Grâce à eux, des flux importants de carbone ont été établis vers les champs de case (3,8 tC ha-1 an-1), et les pertes minérales globales ont été estimées à 4 kgN et 1 kgP ha-1 an-1. Le terroir était donc proche de l'équilibre minéral.Mais selon la dynamique démographique actuelle, la perte de carbone pourrait atteindre 0,38 tC ha-1 an-1, et la demande en carbone doubler durant les 30 prochaines années. Sans intensification des pratiques, ceci remettrait en cause la viabilité du système.

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    HAL-IRD
    Doctoral thesis . 2000
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    VTechWorks
    Doctoral thesis . 2000
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      Doctoral thesis . 2000
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    Authors: Poncet, Y.; Quensiere, J.;

    Metadata only record The article examines the application of a geographical information system (GIS) project to the sustainable development of a natural resource within the context of a fisheries production system in the Central Delta of the River Niger in Mali. The project, which takes into account the specific characteristics of the natural and social environment, results from the findings of a research programme carried out between 1986-94 to investigate the organization and dynamics of a production sector which is based on the exploitation of a natural renewable resource. The Central Delta of the Niger contributes around 90% annually of total fish production in Mali. Over recent years, however, increasing interest from developers, restrictions on fishing and conflict between producers have caused a crisis of production. Through the development of a system of spatial representation of the interactions between the social and natural systems of the area, the objectives of the GIS are to solve the conflicts associated with resource use, develop an effective system of resource management and ensure the long term sustainability of the resource. (CAB Abstract)

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    VTechWorks
    Other literature type . 1996
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  • Authors: Georges Dossou; Jadix Saïnou; Lucien Agbandji; Précieux Christian Behanzin;

    L’objet de ce travail est d’analyser les déterminants de la demande résidentielle d’énergie électrique au Bénin. L’étude a été réalisée sur 1089 ménages en utilisant les données de l’Enquête sur la Consommation d’Electricité au Bénin (ECEB) conduite en 2014 par l’Institut National de la Statistique et de l’Analyse Economique. Après avoir procédé à une analyse descriptive univariée et bivariée, une modélisation économétrique en données de panel a été mise en œuvre. Le modèle d’analyse de la demande conditionnelle de Dalen et Larsen (2012) utilisé à cet effet a révélé que le sexe du chef de ménage, la taille et le revenu du ménage ainsi que la possession d’appareils électroménagers tels que le ventilateur, le brasseur, le réfrigérateur et la radio influencent la demande résidentielle globale d’énergie électrique des départements contrairement au milieu de résidence (urbain ou rural) et au prix du kilowattheure d’électricité. Repères et Perspectives Economiques, Vol. 4, No 2 (2020)

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  • Authors: Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; +17 Authors

    No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.

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    Authors: Bezuneh, T. (ed.); Emechebe, A. M. (ed.); Sedgo, J. (ed.); Ouedraogo, M. (ed.);

    Metadata only record The paper proposes a theory of technology development for semi-arid regions. It then evaluates the theory by reviewing the characteristics of technologies successfully introduced into the regions. Modeling is then used to identify some constraints to further technology introduction of the type proposed. Some specific policy recommendations to accelerate technology introduction are made.

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    VTechWorks
    Other literature type . 1997
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  • Authors: Michel Ange, Régis;

    Durant deux années, Haïti est frappé successivement de plusieurs catastrophes, le cout humain est considérable, comment faire face? Oxfam tente alors de renouer des liens avec une organisation locale avec qui il y avait eu des différends dans le passé. série « Partnering for Impact » Le partenariat est le pilier de la façon dont Oxfam conçoit le monde et contribue activement au changement. Toutes nos activités sont guidées par ce principe: du développement à long terme à l’intervention humanitaire et la prévention des catastrophes, en passant par les campagnes et le plaidoyer. Mais que cela signifie-t-il pour notre personnel? Chaque jour apporte de nouveaux défis et de nouvelles opportunités, comment gérer tout cela ? Suite a un atelier d’écriture, cette série d’études de cas a été développé afin de partager et d’examiner ce qu’on apprit des professionnels confirmés a propos du partenariat. ; Durant deux années, Haïti est frappé successivement de plusieurs catastrophes, le cout humain est considérable, comment faire face? Oxfam tente alors de renouer des liens avec une organisation locale avec qui il y avait eu des différends dans le passé. série « Partnering for Impact » Le partenariat est le pilier de la façon dont Oxfam conçoit le monde et contribue activement au changement. Toutes nos activités sont guidées par ce principe: du développement à long terme à l’intervention humanitaire et la prévention des catastrophes, en passant par les campagnes et le plaidoyer. Mais que cela signifie-t-il pour notre personnel? Chaque jour apporte de nouveaux défis et de nouvelles opportunités, comment gérer tout cela ? Suite a un atelier d’écriture, cette série d’études de cas a été développé afin de partager et d’examiner ce qu’on apprit des professionnels confirmés a propos du partenariat.

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    Authors: de Boer, F.; Kessler, J. J.;

    Metadata only record This document presents an analysis of Fulani pastoral farming systems that focuses on how pastoralists use silvopastoral land. It aims to provide the missing knowledge needed to implement the resource management ('gestion des terroirs') approach at village level. In this region the influence of pastoral land use on the environment appears to be less pronounced than that of crop cultivation, even though levels of animal production are reasonable. The carrying capacity of the region has not yet been attained. Current constraints to pastoral land use in the region arise from the encroachment of cropland at the expense of pastoral land, and the increase in animal numbers. To develop sustainable natural resource management at village level that includes Fulani pastoral land use, the key factors appear to be the integration of livestock husbandry and cropland cultivation at household level, agreements between pastoralists and cropland farmers on land tenure and resource management, and support targeting of Fulani households (which have so far been neglected). Specific recommendations are given. (CAB Abstract)

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    VTechWorks
    Other literature type . 1994
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    Authors: Gohin, Alexandre; Gohin, Alexandre;

    [Paper in French] The European public policy in favor of the biodiesel consumption is highly debated. Available estimates of the induced land use changes conclude that this policy is inefficient to reduce emissions of GreenHouse Gas. We show that the crop yield evolutions in these estimates are significantly lower than the observed and expected evolutions. This difference is directly related to biased calibration choice of behavioral parameters. We show using the GTAP-BIO framework that a consistent calibration of these parameters leads to a strong reduction (by around 80% in the long run) of the land use changes and induced emissions.

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    https://dx.doi.org/10.22004/ag...
    Other literature type . 2013
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  • Mode of access: Internet.

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