Assolements en communs et méthaniseurs collectifs, médiateurs de systèmes plus durables ?

Abstract : Abstract: Shared crops and collective biogas plants, towards more sustainable systems? Recent developments in agriculture in France have been marked by the emergence of collective projects, associating farmers around shared crop areas or bio-gas plants. The potential for sustainability of these projects is discussed. Our objective was to evaluate the impact of two agricultural projects involving crops and livestock, with significant exchanges and coordination. One shared crop area and one collective biogas plant were investigated. We aimed to evaluate the main effects of these projects on the sustainability of agricultural systems, and to analyze how they question agricultural systems' organization and methods for evaluating their sustainability. Results show an increase of the social sustainability of farms, while a tendency to intensify systems was observed. Nevertheless, these projects benefited mainly to a variety of individual projects. They helped to significantly change the identity of farmers within the group (breeders turned into seed farmers for example). The study highlights the interrelations between the individual and collective scales, which raises questions about the methods of evaluation and action to be implemented for more sustainable systems.
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Andréa Wiktor Gabriel, Sonia Ramonteu, J.-P Choisis, Julie Ryschawy, Marc Moraine, et al.. Assolements en communs et méthaniseurs collectifs, médiateurs de systèmes plus durables ?. Innovations Agronomiques, INRA, 2019, 72, pp.121 - 135. ⟨hal-02237892⟩

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