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description Publicationkeyboard_double_arrow_right Other literature type 2022Publisher:OpenAlex Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; Jean‐Marie Kayembe Ntumba; James Kigera; Laurie Laybourn‐Langton; Robert Mash; Joy Muhia; Fhumulani Mavis Mulaudzi; David Ofori‐Adjei; Friday Okonofua; Arash Rashidian; Maha El‐Adawy; Siaka Sidibé; Abdelmadjid Snouber; James Tumwine; Mohammad Sahar Yassien; Paul Yonga; Lilia Zakhama; Chris Zielinski;doi: 10.60692/astq5-jgh58
No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2016 FrancePublisher:HAL CCSD Funded by:UKRI | Net Zero Teesside OnshoreUKRI| Net Zero Teesside OnshoreAuthors: Stolyarova, Elena;Little research has been done to date on French households’ preferences for energy retrofits in the dwelling. However, the economic role of these choices is crucial for implementing an effective and realistic energy policy in the residential sector, both in terms of proposed aid and targets. Are households interested in retrofits with high energy-savings potential? How much are they willing to pay and is it sufficient to cover the up-front costs? How many households have no choice of heating system, and what is their profile?This work sets out to answer these questions empirically using discrete choice models. It starts by analyzing the technical, socio-demographic and spatial constraints that face households and create barriers to domestic energy choices. A method to detect household constraint is devised and applied to the choice of space heating system in 2006 and 2013. The second stage analyzes household preferences for heating equipment and retrofits. This second part is based on a discrete choice experiment specially carried out for this research among 2,000 households. This work sheds light on households’ preferences and heterogeneity, as well as their willingness to pay, the implicit discount rate and other economic impacts. Les préférences des ménages français pour les travaux de rénovation énergétique dans le logement ont été peu étudiées jusqu’à présent. Or, elles sont la clé d’une politique énergétique efficace et réaliste pour le secteur résidentiel, tant au niveau des aides proposées, qu’au niveau des objectifs à réaliser. Les ménages sont-ils intéressés par des travaux à fort potentiel d’économie d’énergie ? Combien sont-ils prêt à payer et est-ce que c’est suffisant pour couvrir les coûts réels ? Combien de ménages n’ont pas le choix de leur mode de chauffage et quel est leur profil ?La thèse s'attache à répondre à ces questions de façon empirique à l’aide de modèles de choix discrets. Il s’agit, dans un premier temps, d’analyser les contraintes techniques, sociodémographiques et spatiales que rencontrent les ménages et qui entravent les choix énergétiques dans le logement. Une méthodologie de détection des ménages contraints a été proposée, puis appliquée au choix du chauffage en 2006 et 2013. Dans un deuxième temps, les préférences des ménages pour les équipements de chauffage et les travaux de rénovation ont été analysées. Cette deuxième partie utilise une enquête expérimentale qui a été réalisée spécialement pour ce travail de recherche auprès de 2000 ménages. Ce travail a permis de comprendre les préférences des ménages, leur hétérogénéité, et d’en déduire les consentements à payer, les taux d’actualisation implicites et les différents effets économiques.
Hyper Article en Lig... arrow_drop_down INRIA a CCSD electronic archive serverDoctoral thesis . 2016Data sources: INRIA a CCSD electronic archive serverMémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2016add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Hyper Article en Lig... arrow_drop_down INRIA a CCSD electronic archive serverDoctoral thesis . 2016Data sources: INRIA a CCSD electronic archive serverMémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2016add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2017 FrancePublisher:HAL CCSD Funded by:UKRI | End to End logistic suppo...UKRI| End to End logistic support tools for effective aerial drone delivery against COVID-19Félix-Faure, Jim; Chanudet, Vincent; Walter, Christian; Dorioz, Jean Marcel; Baudoin, Jean-Marc; Gaillard, Jeremie; Lissalo, Thierry; Descloux, Stéphane; Dambrine, Etienne;Les réservoirs résultant de la construction de barrages noient de la végétation et des sols. Leur évolution suit trois phases.[br/] - Dynamique initiale : les nouvelles niches écologiques ouvertes ainsi que les stocks de carbone et de nutriments contenus dans la végétation vivante et morte contribuent à une hausse brutale du niveau trophique et de la productivité des réservoirs. Ce phénomène, appelé « trophic upsurge », est d’importance et de durée variables. Il s’accompagne d’une désoxygénation et d’émissions de CO2 et de CH4, d’autant plus fortes que la température est élevée.[br/] - Dynamique à moyen terme : le marnage induit par l’exploitant exonde temporairement les sols noyés, qui sont alors soumis à l’érosion par le batillage des vagues. Dès que la pente dépasse 5 %, les matériaux érodés sont redistribués dans la zone toujours en eau, contribuant au « trophic upsurge » et à la sédimentation. Ces phénomènes ont été très peu quantifiés. Des résultats récents obtenus sur la retenue de Sarrans (Aveyron) suggèrent que ce phénomène est à l’origine d’une proportion importante de l’accumulation sédimentaire. L’influence écologique de l’apport de nutriments associé à la redistribution des sols pourrait être significative dans les environnements oligotrophes. On connaît très mal l’évolution des sols ennoyés au fond des retenues. Des observations préliminaires effectuées sur la retenue de Sarrans montrent que les sols conservent leur structure d’origine. Elles suggèrent aussi que des sols bruns de prairie, ennoyés en permanence depuis 80 ans, ou exondés occasionnellement, ont perdu 30 % de leur carbone, par minéralisation.[br/] - Dynamique à long terme : A long terme, ce sont les sols du bassin versant et de la zone de marnage en pente faible qui influencent l’écologie des retenues. Les sols du bassin versant dans la mesure où le contexte écologique influence l’érosion et l’apport de nutriments. Les sols de la zone littorale dans la mesure où ils soutiennent une production végétale, qui peut contribuer à filtrer l’eau, mais aussi à l’alimenter en carbone organique minéralisable. Il semble que l’émission de gaz à effet de serre par les réservoirs est, toutes choses égales par ailleurs, plus importante que celle des lacs naturels, probablement en raison de la forte sédimentation, et des variations de pression qui favorisent l’émission de CH4, en particulier lors du passage en turbine. Reservoir establishment results in the submersion of soils and vegetation. Their ecological evolution follows 3 main phases.[br/] - Initial: carbon and nutrients stored in living and dead vegetation biomass supply for a rise of the trophic level and productivity of the lake. During this phase, named « trophic upsurge », which duration and intensity are variable, water anoxia, CO2 and CH4 emissions also rise especially when temperature is high.[br/] - Mean Term: Water level fluctuates according to seasonal energy needs. Waves erode submerged soils along the shoreline. If the slope is steeper than 5%, soils are redistributed downslope and this flux contributes to the trophic upsurge and to sediment accumulation. These phenomena have been poorly studied and quantified. Our measurements at Sarrans reservoir suggest that soil redistribution is a major contributor to sediment accumulation. The ecological influence of carbon and nutrient inputs to the lake may be significant in oligotrophic environments. The evolution of permanently submerged soils is poorly known. Preliminary measurements at Sarrans reservoirs show that grassland cambisols (almost) permanently submerged have lost 30% of their original carbon store since impoundment.[br/] - On the long term, both catchment soils, through erosion and nutrient supply, and soils of the littoral zone, which support vegetation communities, influence reservoir ecology. The accumulation of sedimentary carbon in reservoirs appears much higher than in natural lakes, even eutrophic, and reasons for this are many. Greenhouse gas emission is also higher, because of higher sedimentation rate and increased water level fluctuations that favour methane bubbling and water degassing at the turbine outlet.
Hyper Article en Lig... arrow_drop_down INRIA a CCSD electronic archive serverArticle . 2017Data sources: INRIA a CCSD electronic archive serveradd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Hyper Article en Lig... arrow_drop_down INRIA a CCSD electronic archive serverArticle . 2017Data sources: INRIA a CCSD electronic archive serveradd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2019 United KingdomPublisher:University of Wolverhampton, Centre for International Development and Training MBZIBAIN, AURELIAN; Nyirenda, Richard; Nkodia, Alfred; Moukouri, Serge; Nzala, Donatien; Baur, Dani;handle: 2436/622858
Les forêts du Bassin du Congo constituent l’un des plus importants réservoirs de biodiversité dans le monde. Elles fournissent des moyens de subsistance à plus de 75 millions de personnes qui comptent sur les ressources naturelles locales. Mais à cause de la mauvaise gouvernance observée, cette richesse tend à disparaître au fil des temps, ce qui représente une menace pour la survie des populations qui y sont installées. De nombreuses initiatives ont vu le jour pour pallier cette situation parmi lesquelles la certification forestière, REDD+ et les APV-FLEGT. Les pays du bassin du Congo ont fait de la gouvernance forestière une priorité au sein de la Commission des Forêts d’Afrique Centrale (COMIFAC). Pour y parvenir, il est évident que toutes les parties prenantes à la gestion durable des forêts se sentent concernées et doivent s’impliquer. Dans cette perspective, le projet C4CV, cofinancé par l’Union européenne et le DFID a organisé le Forum régional sur la Gouvernance Forestière (FGF) en République du Congo. Ce projet est mis en œuvre au Cameroun, en République centrafricaine, en République démocratique du Congo, au Gabon et en République du Congo. Sous la direction du CIDT de l’université de Wolverhampton, les organisations partenaires dudit projet dans les cinq pays sont : le Centre pour l’Information Environnementale et le Développement Durable (CIEDD), le centre pour l’Environnement et le Développement (CED) et Forêts et développement Rural (FODER) au Cameroun ; l’Observatoire de la Gouvernance Forestière (OGF) en RDC ; Brainforest au Gabon ; le Cercle d’Appui à la Gestion Durable des Forêts (CAGDF) en République du Congo, y compris le Field Legality Advisory Group (FLAG) en tant que partenaire régional et le World Resources Institute (WRI) en tant que partenaire international. Calqué sur le modèle des réunions semestrielles de mise à jour sur l’exploitation illégale à Chatham House, le FGF vise à contribuer aux buts plus étendus du projet CV4C à travers le partage d’expériences et la sensibilisation, et en promouvant le profil des processus APV-FLEGT et REDD+. La 11ème édition du FGF a été organisée en collaboration avec le Partenariat pour les Forêts du Bassin du Congo (PFBC), en vue de la préparation de la Rencontre des Parties de haut niveau, prévue pour la semaine du 26 novembre 2018 à Bruxelles. ; Forum sur la gouvernance forestière, 30-31 octobre 2018, Brazzaville, DR Congo.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=2436/622858&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2022Publisher:OpenAlex Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; Jean‐Marie Kayembe Ntumba; James Kigera; Laurie Laybourn‐Langton; Robert Mash; Joy Muhia; Fhumulani Mavis Mulaudzi; David Ofori‐Adjei; Friday Okonofua; Arash Rashidian; Maha El‐Adawy; Siaka Sidibé; Abdelmadjid Snouber; James Tumwine; Mohammad Sahar Yassien; Paul Yonga; Lilia Zakhama; Chris Zielinski;doi: 10.60692/n1efv-0pb13
No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.60692/n1efv-0pb13&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.60692/n1efv-0pb13&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Thesis 2018 United KingdomPublisher:Brunel University London Authors: Joseph, Stanley Ob;This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University London ; Projected increasing temperatures and reduced summer precipitation in the UK raises questions about the sustainability of aspects of the agriculture industry and food security. This study investigates the potential impact of precipitation changes on sugar beet yield in Eastern England. Observations of precipitation was examined for the period 1971-2000 and the expected changes in precipitation were investigated using seven CMIP5 climate models for the historical phase (1971-2000) and RCP45 and RCP85 future scenarios (2021-2050). Three out of the seven models were found to show good agreement with observations but the MOHC ensemble mean was the closest to the observed means and was used for further precipitation analyses. Statistical analysis of the future precipitation changes were performed using the Met Office Hadley Centre (MOHC) model focused on changes between the historical phase and RCP45 and RCP85. Results showed a consistent and significant reduction in annual May-October precipitation under future scenarios. The study then investigated the impact of reduced future precipitation changes on sugar beet yield by applying controlled watering regimes informed by the CMIP5 projections to sugar beet plants in a greenhouse experiment over two seasons – the use of CMIP5 projections in this way is a first. In the first experiment carried out in 2014, a climatological watering regime (i.e. where the total seasonal rainfall for the different scenarios was applied in equal and regular watering events) was applied to the plants, which meant a 16% reduction in precipitation in the “future” category relative to a “control” category. Analysis of the yields indicated a statistically significant reduction in mean tuber wet mass: mean of 360g for the control and 319g for the future (p-value 0.03). This implies a potential yield reduction of 11% by 2050. In the second experiment carried out in 2015, a “realistic ...
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=base_search_::0a7634d78329f22a4c1ece366d5b4919&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2022Publisher:OpenAlex Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; Jean‐Marie Kayembe Ntumba; James Kigera; Laurie Laybourn‐Langton; Robert Mash; Joy Muhia; Fhumulani Mavis Mulaudzi; David Ofori‐Adjei; Friday Okonofua; Arash Rashidian; Maha El‐Adawy; Siaka Sidibé; Abdelmadjid Snouber; James Tumwine; Mohammad Sahar Yassien; Paul Yonga; Lilia Zakhama; Chris Zielinski;doi: 10.60692/cmwrt-1s390
No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2022Publisher:OpenAlex Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; Jean‐Marie Kayembe Ntumba; James Kigera; Laurie Laybourn‐Langton; Robert Mash; Joy Muhia; Fhumulani Mavis Mulaudzi; David Ofori‐Adjei; Friday Okonofua; Arash Rashidian; Maha El‐Adawy; Siaka Sidibé; Abdelmadjid Snouber; James Tumwine; Mohammad Sahar Yassien; Paul Yonga; Lilia Zakhama; Chris Zielinski;doi: 10.60692/7jb4a-06445
No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2018Publisher:HAL CCSD Funded by:UKRI | Land of the MUSCos, UKRI | Future Energy Decision Ma...UKRI| Land of the MUSCos ,UKRI| Future Energy Decision Making for Cities - Can Complexity Science Rise to the Challenge?Authors: Ragazzi, Graziella;To face the climate change, energy transition is required. Energy transition is a societal transition, which is really challenging because of its singularities. The multi-level governance is necessary in order to act now for the energy transition. Indeed States take action by negotiating international agreements for the climate on the one hand, and on the other hand by legislating their national regulatory framework. Local authorities intervene too owing to their competencies which give them a high influence power on decentralized production system and on energy consumption. The local scale plays a major role because they benefit from closed and trustful relationships which foster collective action and act as a real leverage. It is at the territories level that energy transition projects emerge and that fight against global warming become true. That's why it is necessary to understand what types of local projects for the energy transition arise, and what is their economic, social and environmental performance. This can allow public authorities to identify what are the performant projects and to encourage to replicate them on the one hand, and on the other hand to remove barriers in order to make arise innovant projects. In the long run, we must understand what kinds of projects will unfold and generalize as part of the energy transition depending on the value they will generate. To answer this, the business models perspective is highly appropriate: it constitutes an analytical framework which allows to describe the project features (its value proposition, its value configuration) and to determine its viability and sustainability according to the (economic, financial, social, environmental) values creation it builds. The thesis puts forward a typology of energy transition business models at the local scale, an analytical framework for projects adapted to the energy transition societal stake. Finally the thesis suggests some public policy recommandation in terms of assessment of the economic, social and environmental performance of the local projects for the energy transition.; Face à l'urgence dans la lutte contre le réchauffement climatique, la transition énergétique bas carbone est une transition sociétale constituant un véritable défi du fait de ses singularités. Les conditions de sa réalisation résident dans un pilotage politique multi-niveaux afin d'agir dès à présent sur les différents leviers d'action possibles. En effet les Etats interviennent d'une part lors des négociations internationales afin de parvenir à un accord universel sur le climat, et d'autre part dans la législation de leur cadre réglementaire national. Les collectivités locales interviennent également du fait de leurs compétences leur conférant un pouvoir d'influence conséquent sur les modes de production décentralisés et sur la consommation d'énergie. L'échelle locale joue un rôle de premier ordre car elle bénéficie des liens de proximités et de confiance qui favorisent l'action collective et constitue un véritable effet de levier. C'est au niveau des territoires que les projets de la transition énergétique émergent et que la lutte contre le réchauffement climatique se concrétise. C'est pourquoi il est nécessaire de comprendre quels types de projets locaux pour la transition énergétique émergent, et quelle est leur performance tant d'un point de vue économique, que social et environnemental. Cela permettra d'une part aux pouvoirs publics d'identifier les types de projets performants pour impulser leur développement, et d'autre part quels sont les freins à lever le cas échéant pour faire émerger des projets innovants. Sur le long-terme, il s'agit de comprendre quels types de projets se déploieront et se généraliseront dans le cadre de la transition énergétique en fonction du type de valeur qu'ils parviendront à générer. Pour répondre à cela, l'approche des business models est pertinente : elle constitue en effet une grille d'analyse permettant de déterminer les caractéristiques de chaque projet, en décrivant sa proposition de valeur et la configuration de cette valeur, et de déterminer sa viabilité et sa durabilité en fonction de la création (ou destruction) de valeurs (économique, financière, sociale, environnementale) qu'il génère. La thèse propose ainsi une typologie des business models de la transition énergétique à l'échelle locale, une grille d'analyse de projet adaptée à l'enjeu sociétal que représente la transition énergétique et propose enfin des recommandations pour la politique publique en matière d'évaluation de la performance économique, sociale et environnementale de projets locaux de transition énergétique.
Hyper Article en Lig... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2018add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018Publisher:HAL CCSD Authors: Plénet, Daniel; Jeannequin, Benoit; Chauvin, Jean-Eric;National audience; The fruit, vegetable and potato (FLP) sectors are characterised by a high structural diversity linked to the many species and varieties cultivated and to very varied production and marketing structures. The very strong competition imposed by the long distribution and import-export channels has gradually led, for reasons of economic rationality, to a specialisation of the production basins and part of the farms with standardisation of production means and products, but also the disappearance of many small farms. Overall, these changes have resulted in an erosion of surfaces and a decrease in the volumes produced for the majority of sectors with the exception of potatoes and certain nuts. Nevertheless, the dynamism of certain "product" sectors has led to a revival of competitiveness and/or a better Plénet D. et al. 80 Innovations Agronomiques 68 (2018), 79-105 development of the offer thanks to approaches relating to the development of high-tech systems, the reduction in the use of synthetic products, segmentation and commercial differentiation, and the creation of quality signs. In addition, the renewal of short and local circuits has recently made it possible to develop a very diversified network of farms in all regions. The emergence of high expectations for organic farming products and for healthy and sustainable agro-food systems offers new opportunities today. To benefit from them, the FLP sectors will have to develop coherent strategies to strengthen complementarities and synergies between different production, processing and marketing systems. These diversity enhancement strategies will contribute to increasing the economic and environmentalrobustness of the FLP sectors.; Les filières fruits, légumes et pomme de terre (FLP) se caractérisent par une diversité structurelle importante liée aux nombreuses espèces et variétés cultivées et à des structures de production et de commercialisation très variées. La très forte concurrence imposée par les circuits longs de la grande distribution et de l’import-export a progressivement entrainé pour des raisons de rationalité économique une spécialisation des bassins de production et d’une partie des exploitations avec une standardisation des moyens de production et des produits, mais aussi la disparition de nombreuses petites exploitations. Globalement, ces évolutions se sont traduites par une érosion des surfaces et une diminution des volumes produits pour la majorité des filières à l’exception de la pomme de terre et de certains fruits à coque. Néanmoins, le dynamisme de certaines filières « produit » a entrainé un regain de compétitivité et/ou une meilleure valorisation de l’offre grâce à des démarches portant sur le développement de systèmes à haute technicité, la réduction d’utilisation des produits de synthèse, la segmentation et la différenciation commerciale, et la création de signes de qualité. Par ailleurs, le renouveau des circuits courts et de proximité permet depuis peu de développer dans toutes les régions un tissu d’exploitations très diversifiées. L’émergence d’une forte attente pour les produits de l’agriculture biologique et pour des systèmes agro-alimentaires sains et durables offre aujourd’hui de nouvelles opportunités. Pour en bénéficier, les filières FLP devront élaborer des stratégies cohérentes afin de renforcer les complémentarités et les synergies entre différents systèmes de production, de transformation et de commercialisation. Ces stratégies de valorisation de la diversité contribueront à accroitre la robustesse économique et environnementale des filières FLP.
Hyper Article en Lig... arrow_drop_down Hyper Article en LigneArticle . 2018License: CC BY NC NDFull-Text: https://hal.inrae.fr/hal-02622928/documentData sources: Hyper Article en LigneMémoires en Sciences de l'Information et de la CommunicationArticle . 2018License: CC BY NC NDFull-Text: https://hal.inrae.fr/hal-02622928/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Hyper Article en Lig... arrow_drop_down Hyper Article en LigneArticle . 2018License: CC BY NC NDFull-Text: https://hal.inrae.fr/hal-02622928/documentData sources: Hyper Article en LigneMémoires en Sciences de l'Information et de la CommunicationArticle . 2018License: CC BY NC NDFull-Text: https://hal.inrae.fr/hal-02622928/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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description Publicationkeyboard_double_arrow_right Other literature type 2022Publisher:OpenAlex Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; Jean‐Marie Kayembe Ntumba; James Kigera; Laurie Laybourn‐Langton; Robert Mash; Joy Muhia; Fhumulani Mavis Mulaudzi; David Ofori‐Adjei; Friday Okonofua; Arash Rashidian; Maha El‐Adawy; Siaka Sidibé; Abdelmadjid Snouber; James Tumwine; Mohammad Sahar Yassien; Paul Yonga; Lilia Zakhama; Chris Zielinski;doi: 10.60692/astq5-jgh58
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2016 FrancePublisher:HAL CCSD Funded by:UKRI | Net Zero Teesside OnshoreUKRI| Net Zero Teesside OnshoreAuthors: Stolyarova, Elena;Little research has been done to date on French households’ preferences for energy retrofits in the dwelling. However, the economic role of these choices is crucial for implementing an effective and realistic energy policy in the residential sector, both in terms of proposed aid and targets. Are households interested in retrofits with high energy-savings potential? How much are they willing to pay and is it sufficient to cover the up-front costs? How many households have no choice of heating system, and what is their profile?This work sets out to answer these questions empirically using discrete choice models. It starts by analyzing the technical, socio-demographic and spatial constraints that face households and create barriers to domestic energy choices. A method to detect household constraint is devised and applied to the choice of space heating system in 2006 and 2013. The second stage analyzes household preferences for heating equipment and retrofits. This second part is based on a discrete choice experiment specially carried out for this research among 2,000 households. This work sheds light on households’ preferences and heterogeneity, as well as their willingness to pay, the implicit discount rate and other economic impacts. Les préférences des ménages français pour les travaux de rénovation énergétique dans le logement ont été peu étudiées jusqu’à présent. Or, elles sont la clé d’une politique énergétique efficace et réaliste pour le secteur résidentiel, tant au niveau des aides proposées, qu’au niveau des objectifs à réaliser. Les ménages sont-ils intéressés par des travaux à fort potentiel d’économie d’énergie ? Combien sont-ils prêt à payer et est-ce que c’est suffisant pour couvrir les coûts réels ? Combien de ménages n’ont pas le choix de leur mode de chauffage et quel est leur profil ?La thèse s'attache à répondre à ces questions de façon empirique à l’aide de modèles de choix discrets. Il s’agit, dans un premier temps, d’analyser les contraintes techniques, sociodémographiques et spatiales que rencontrent les ménages et qui entravent les choix énergétiques dans le logement. Une méthodologie de détection des ménages contraints a été proposée, puis appliquée au choix du chauffage en 2006 et 2013. Dans un deuxième temps, les préférences des ménages pour les équipements de chauffage et les travaux de rénovation ont été analysées. Cette deuxième partie utilise une enquête expérimentale qui a été réalisée spécialement pour ce travail de recherche auprès de 2000 ménages. Ce travail a permis de comprendre les préférences des ménages, leur hétérogénéité, et d’en déduire les consentements à payer, les taux d’actualisation implicites et les différents effets économiques.
Hyper Article en Lig... arrow_drop_down INRIA a CCSD electronic archive serverDoctoral thesis . 2016Data sources: INRIA a CCSD electronic archive serverMémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2016add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Hyper Article en Lig... arrow_drop_down INRIA a CCSD electronic archive serverDoctoral thesis . 2016Data sources: INRIA a CCSD electronic archive serverMémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2016add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2017 FrancePublisher:HAL CCSD Funded by:UKRI | End to End logistic suppo...UKRI| End to End logistic support tools for effective aerial drone delivery against COVID-19Félix-Faure, Jim; Chanudet, Vincent; Walter, Christian; Dorioz, Jean Marcel; Baudoin, Jean-Marc; Gaillard, Jeremie; Lissalo, Thierry; Descloux, Stéphane; Dambrine, Etienne;Les réservoirs résultant de la construction de barrages noient de la végétation et des sols. Leur évolution suit trois phases.[br/] - Dynamique initiale : les nouvelles niches écologiques ouvertes ainsi que les stocks de carbone et de nutriments contenus dans la végétation vivante et morte contribuent à une hausse brutale du niveau trophique et de la productivité des réservoirs. Ce phénomène, appelé « trophic upsurge », est d’importance et de durée variables. Il s’accompagne d’une désoxygénation et d’émissions de CO2 et de CH4, d’autant plus fortes que la température est élevée.[br/] - Dynamique à moyen terme : le marnage induit par l’exploitant exonde temporairement les sols noyés, qui sont alors soumis à l’érosion par le batillage des vagues. Dès que la pente dépasse 5 %, les matériaux érodés sont redistribués dans la zone toujours en eau, contribuant au « trophic upsurge » et à la sédimentation. Ces phénomènes ont été très peu quantifiés. Des résultats récents obtenus sur la retenue de Sarrans (Aveyron) suggèrent que ce phénomène est à l’origine d’une proportion importante de l’accumulation sédimentaire. L’influence écologique de l’apport de nutriments associé à la redistribution des sols pourrait être significative dans les environnements oligotrophes. On connaît très mal l’évolution des sols ennoyés au fond des retenues. Des observations préliminaires effectuées sur la retenue de Sarrans montrent que les sols conservent leur structure d’origine. Elles suggèrent aussi que des sols bruns de prairie, ennoyés en permanence depuis 80 ans, ou exondés occasionnellement, ont perdu 30 % de leur carbone, par minéralisation.[br/] - Dynamique à long terme : A long terme, ce sont les sols du bassin versant et de la zone de marnage en pente faible qui influencent l’écologie des retenues. Les sols du bassin versant dans la mesure où le contexte écologique influence l’érosion et l’apport de nutriments. Les sols de la zone littorale dans la mesure où ils soutiennent une production végétale, qui peut contribuer à filtrer l’eau, mais aussi à l’alimenter en carbone organique minéralisable. Il semble que l’émission de gaz à effet de serre par les réservoirs est, toutes choses égales par ailleurs, plus importante que celle des lacs naturels, probablement en raison de la forte sédimentation, et des variations de pression qui favorisent l’émission de CH4, en particulier lors du passage en turbine. Reservoir establishment results in the submersion of soils and vegetation. Their ecological evolution follows 3 main phases.[br/] - Initial: carbon and nutrients stored in living and dead vegetation biomass supply for a rise of the trophic level and productivity of the lake. During this phase, named « trophic upsurge », which duration and intensity are variable, water anoxia, CO2 and CH4 emissions also rise especially when temperature is high.[br/] - Mean Term: Water level fluctuates according to seasonal energy needs. Waves erode submerged soils along the shoreline. If the slope is steeper than 5%, soils are redistributed downslope and this flux contributes to the trophic upsurge and to sediment accumulation. These phenomena have been poorly studied and quantified. Our measurements at Sarrans reservoir suggest that soil redistribution is a major contributor to sediment accumulation. The ecological influence of carbon and nutrient inputs to the lake may be significant in oligotrophic environments. The evolution of permanently submerged soils is poorly known. Preliminary measurements at Sarrans reservoirs show that grassland cambisols (almost) permanently submerged have lost 30% of their original carbon store since impoundment.[br/] - On the long term, both catchment soils, through erosion and nutrient supply, and soils of the littoral zone, which support vegetation communities, influence reservoir ecology. The accumulation of sedimentary carbon in reservoirs appears much higher than in natural lakes, even eutrophic, and reasons for this are many. Greenhouse gas emission is also higher, because of higher sedimentation rate and increased water level fluctuations that favour methane bubbling and water degassing at the turbine outlet.
Hyper Article en Lig... arrow_drop_down INRIA a CCSD electronic archive serverArticle . 2017Data sources: INRIA a CCSD electronic archive serveradd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Report 2019 United KingdomPublisher:University of Wolverhampton, Centre for International Development and Training MBZIBAIN, AURELIAN; Nyirenda, Richard; Nkodia, Alfred; Moukouri, Serge; Nzala, Donatien; Baur, Dani;handle: 2436/622858
Les forêts du Bassin du Congo constituent l’un des plus importants réservoirs de biodiversité dans le monde. Elles fournissent des moyens de subsistance à plus de 75 millions de personnes qui comptent sur les ressources naturelles locales. Mais à cause de la mauvaise gouvernance observée, cette richesse tend à disparaître au fil des temps, ce qui représente une menace pour la survie des populations qui y sont installées. De nombreuses initiatives ont vu le jour pour pallier cette situation parmi lesquelles la certification forestière, REDD+ et les APV-FLEGT. Les pays du bassin du Congo ont fait de la gouvernance forestière une priorité au sein de la Commission des Forêts d’Afrique Centrale (COMIFAC). Pour y parvenir, il est évident que toutes les parties prenantes à la gestion durable des forêts se sentent concernées et doivent s’impliquer. Dans cette perspective, le projet C4CV, cofinancé par l’Union européenne et le DFID a organisé le Forum régional sur la Gouvernance Forestière (FGF) en République du Congo. Ce projet est mis en œuvre au Cameroun, en République centrafricaine, en République démocratique du Congo, au Gabon et en République du Congo. Sous la direction du CIDT de l’université de Wolverhampton, les organisations partenaires dudit projet dans les cinq pays sont : le Centre pour l’Information Environnementale et le Développement Durable (CIEDD), le centre pour l’Environnement et le Développement (CED) et Forêts et développement Rural (FODER) au Cameroun ; l’Observatoire de la Gouvernance Forestière (OGF) en RDC ; Brainforest au Gabon ; le Cercle d’Appui à la Gestion Durable des Forêts (CAGDF) en République du Congo, y compris le Field Legality Advisory Group (FLAG) en tant que partenaire régional et le World Resources Institute (WRI) en tant que partenaire international. Calqué sur le modèle des réunions semestrielles de mise à jour sur l’exploitation illégale à Chatham House, le FGF vise à contribuer aux buts plus étendus du projet CV4C à travers le partage d’expériences et la sensibilisation, et en promouvant le profil des processus APV-FLEGT et REDD+. La 11ème édition du FGF a été organisée en collaboration avec le Partenariat pour les Forêts du Bassin du Congo (PFBC), en vue de la préparation de la Rencontre des Parties de haut niveau, prévue pour la semaine du 26 novembre 2018 à Bruxelles. ; Forum sur la gouvernance forestière, 30-31 octobre 2018, Brazzaville, DR Congo.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2022Publisher:OpenAlex Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; Jean‐Marie Kayembe Ntumba; James Kigera; Laurie Laybourn‐Langton; Robert Mash; Joy Muhia; Fhumulani Mavis Mulaudzi; David Ofori‐Adjei; Friday Okonofua; Arash Rashidian; Maha El‐Adawy; Siaka Sidibé; Abdelmadjid Snouber; James Tumwine; Mohammad Sahar Yassien; Paul Yonga; Lilia Zakhama; Chris Zielinski;doi: 10.60692/n1efv-0pb13
No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Thesis 2018 United KingdomPublisher:Brunel University London Authors: Joseph, Stanley Ob;This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University London ; Projected increasing temperatures and reduced summer precipitation in the UK raises questions about the sustainability of aspects of the agriculture industry and food security. This study investigates the potential impact of precipitation changes on sugar beet yield in Eastern England. Observations of precipitation was examined for the period 1971-2000 and the expected changes in precipitation were investigated using seven CMIP5 climate models for the historical phase (1971-2000) and RCP45 and RCP85 future scenarios (2021-2050). Three out of the seven models were found to show good agreement with observations but the MOHC ensemble mean was the closest to the observed means and was used for further precipitation analyses. Statistical analysis of the future precipitation changes were performed using the Met Office Hadley Centre (MOHC) model focused on changes between the historical phase and RCP45 and RCP85. Results showed a consistent and significant reduction in annual May-October precipitation under future scenarios. The study then investigated the impact of reduced future precipitation changes on sugar beet yield by applying controlled watering regimes informed by the CMIP5 projections to sugar beet plants in a greenhouse experiment over two seasons – the use of CMIP5 projections in this way is a first. In the first experiment carried out in 2014, a climatological watering regime (i.e. where the total seasonal rainfall for the different scenarios was applied in equal and regular watering events) was applied to the plants, which meant a 16% reduction in precipitation in the “future” category relative to a “control” category. Analysis of the yields indicated a statistically significant reduction in mean tuber wet mass: mean of 360g for the control and 319g for the future (p-value 0.03). This implies a potential yield reduction of 11% by 2050. In the second experiment carried out in 2015, a “realistic ...
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=base_search_::0a7634d78329f22a4c1ece366d5b4919&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2022Publisher:OpenAlex Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; Jean‐Marie Kayembe Ntumba; James Kigera; Laurie Laybourn‐Langton; Robert Mash; Joy Muhia; Fhumulani Mavis Mulaudzi; David Ofori‐Adjei; Friday Okonofua; Arash Rashidian; Maha El‐Adawy; Siaka Sidibé; Abdelmadjid Snouber; James Tumwine; Mohammad Sahar Yassien; Paul Yonga; Lilia Zakhama; Chris Zielinski;doi: 10.60692/cmwrt-1s390
No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.60692/cmwrt-1s390&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.60692/cmwrt-1s390&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2022Publisher:OpenAlex Lukoye Atwoli; Gregory E. Erhabor; Aiah A Gbakima; Abraham Haileamlak; Jean‐Marie Kayembe Ntumba; James Kigera; Laurie Laybourn‐Langton; Robert Mash; Joy Muhia; Fhumulani Mavis Mulaudzi; David Ofori‐Adjei; Friday Okonofua; Arash Rashidian; Maha El‐Adawy; Siaka Sidibé; Abdelmadjid Snouber; James Tumwine; Mohammad Sahar Yassien; Paul Yonga; Lilia Zakhama; Chris Zielinski;doi: 10.60692/7jb4a-06445
No hay resumen disponible. Aucun résumé disponible. No abstract available. لا يوجد ملخص متاح.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.60692/7jb4a-06445&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis 2018Publisher:HAL CCSD Funded by:UKRI | Land of the MUSCos, UKRI | Future Energy Decision Ma...UKRI| Land of the MUSCos ,UKRI| Future Energy Decision Making for Cities - Can Complexity Science Rise to the Challenge?Authors: Ragazzi, Graziella;To face the climate change, energy transition is required. Energy transition is a societal transition, which is really challenging because of its singularities. The multi-level governance is necessary in order to act now for the energy transition. Indeed States take action by negotiating international agreements for the climate on the one hand, and on the other hand by legislating their national regulatory framework. Local authorities intervene too owing to their competencies which give them a high influence power on decentralized production system and on energy consumption. The local scale plays a major role because they benefit from closed and trustful relationships which foster collective action and act as a real leverage. It is at the territories level that energy transition projects emerge and that fight against global warming become true. That's why it is necessary to understand what types of local projects for the energy transition arise, and what is their economic, social and environmental performance. This can allow public authorities to identify what are the performant projects and to encourage to replicate them on the one hand, and on the other hand to remove barriers in order to make arise innovant projects. In the long run, we must understand what kinds of projects will unfold and generalize as part of the energy transition depending on the value they will generate. To answer this, the business models perspective is highly appropriate: it constitutes an analytical framework which allows to describe the project features (its value proposition, its value configuration) and to determine its viability and sustainability according to the (economic, financial, social, environmental) values creation it builds. The thesis puts forward a typology of energy transition business models at the local scale, an analytical framework for projects adapted to the energy transition societal stake. Finally the thesis suggests some public policy recommandation in terms of assessment of the economic, social and environmental performance of the local projects for the energy transition.; Face à l'urgence dans la lutte contre le réchauffement climatique, la transition énergétique bas carbone est une transition sociétale constituant un véritable défi du fait de ses singularités. Les conditions de sa réalisation résident dans un pilotage politique multi-niveaux afin d'agir dès à présent sur les différents leviers d'action possibles. En effet les Etats interviennent d'une part lors des négociations internationales afin de parvenir à un accord universel sur le climat, et d'autre part dans la législation de leur cadre réglementaire national. Les collectivités locales interviennent également du fait de leurs compétences leur conférant un pouvoir d'influence conséquent sur les modes de production décentralisés et sur la consommation d'énergie. L'échelle locale joue un rôle de premier ordre car elle bénéficie des liens de proximités et de confiance qui favorisent l'action collective et constitue un véritable effet de levier. C'est au niveau des territoires que les projets de la transition énergétique émergent et que la lutte contre le réchauffement climatique se concrétise. C'est pourquoi il est nécessaire de comprendre quels types de projets locaux pour la transition énergétique émergent, et quelle est leur performance tant d'un point de vue économique, que social et environnemental. Cela permettra d'une part aux pouvoirs publics d'identifier les types de projets performants pour impulser leur développement, et d'autre part quels sont les freins à lever le cas échéant pour faire émerger des projets innovants. Sur le long-terme, il s'agit de comprendre quels types de projets se déploieront et se généraliseront dans le cadre de la transition énergétique en fonction du type de valeur qu'ils parviendront à générer. Pour répondre à cela, l'approche des business models est pertinente : elle constitue en effet une grille d'analyse permettant de déterminer les caractéristiques de chaque projet, en décrivant sa proposition de valeur et la configuration de cette valeur, et de déterminer sa viabilité et sa durabilité en fonction de la création (ou destruction) de valeurs (économique, financière, sociale, environnementale) qu'il génère. La thèse propose ainsi une typologie des business models de la transition énergétique à l'échelle locale, une grille d'analyse de projet adaptée à l'enjeu sociétal que représente la transition énergétique et propose enfin des recommandations pour la politique publique en matière d'évaluation de la performance économique, sociale et environnementale de projets locaux de transition énergétique.
Hyper Article en Lig... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2018add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Hyper Article en Lig... arrow_drop_down Mémoires en Sciences de l'Information et de la CommunicationDoctoral thesis . 2018add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018Publisher:HAL CCSD Authors: Plénet, Daniel; Jeannequin, Benoit; Chauvin, Jean-Eric;National audience; The fruit, vegetable and potato (FLP) sectors are characterised by a high structural diversity linked to the many species and varieties cultivated and to very varied production and marketing structures. The very strong competition imposed by the long distribution and import-export channels has gradually led, for reasons of economic rationality, to a specialisation of the production basins and part of the farms with standardisation of production means and products, but also the disappearance of many small farms. Overall, these changes have resulted in an erosion of surfaces and a decrease in the volumes produced for the majority of sectors with the exception of potatoes and certain nuts. Nevertheless, the dynamism of certain "product" sectors has led to a revival of competitiveness and/or a better Plénet D. et al. 80 Innovations Agronomiques 68 (2018), 79-105 development of the offer thanks to approaches relating to the development of high-tech systems, the reduction in the use of synthetic products, segmentation and commercial differentiation, and the creation of quality signs. In addition, the renewal of short and local circuits has recently made it possible to develop a very diversified network of farms in all regions. The emergence of high expectations for organic farming products and for healthy and sustainable agro-food systems offers new opportunities today. To benefit from them, the FLP sectors will have to develop coherent strategies to strengthen complementarities and synergies between different production, processing and marketing systems. These diversity enhancement strategies will contribute to increasing the economic and environmentalrobustness of the FLP sectors.; Les filières fruits, légumes et pomme de terre (FLP) se caractérisent par une diversité structurelle importante liée aux nombreuses espèces et variétés cultivées et à des structures de production et de commercialisation très variées. La très forte concurrence imposée par les circuits longs de la grande distribution et de l’import-export a progressivement entrainé pour des raisons de rationalité économique une spécialisation des bassins de production et d’une partie des exploitations avec une standardisation des moyens de production et des produits, mais aussi la disparition de nombreuses petites exploitations. Globalement, ces évolutions se sont traduites par une érosion des surfaces et une diminution des volumes produits pour la majorité des filières à l’exception de la pomme de terre et de certains fruits à coque. Néanmoins, le dynamisme de certaines filières « produit » a entrainé un regain de compétitivité et/ou une meilleure valorisation de l’offre grâce à des démarches portant sur le développement de systèmes à haute technicité, la réduction d’utilisation des produits de synthèse, la segmentation et la différenciation commerciale, et la création de signes de qualité. Par ailleurs, le renouveau des circuits courts et de proximité permet depuis peu de développer dans toutes les régions un tissu d’exploitations très diversifiées. L’émergence d’une forte attente pour les produits de l’agriculture biologique et pour des systèmes agro-alimentaires sains et durables offre aujourd’hui de nouvelles opportunités. Pour en bénéficier, les filières FLP devront élaborer des stratégies cohérentes afin de renforcer les complémentarités et les synergies entre différents systèmes de production, de transformation et de commercialisation. Ces stratégies de valorisation de la diversité contribueront à accroitre la robustesse économique et environnementale des filières FLP.
Hyper Article en Lig... arrow_drop_down Hyper Article en LigneArticle . 2018License: CC BY NC NDFull-Text: https://hal.inrae.fr/hal-02622928/documentData sources: Hyper Article en LigneMémoires en Sciences de l'Information et de la CommunicationArticle . 2018License: CC BY NC NDFull-Text: https://hal.inrae.fr/hal-02622928/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Hyper Article en Lig... arrow_drop_down Hyper Article en LigneArticle . 2018License: CC BY NC NDFull-Text: https://hal.inrae.fr/hal-02622928/documentData sources: Hyper Article en LigneMémoires en Sciences de l'Information et de la CommunicationArticle . 2018License: CC BY NC NDFull-Text: https://hal.inrae.fr/hal-02622928/documentadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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