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Les usagers confrontés à la restauration de la continuité écologique des cours d’eau : approche en région Bretagne

Abstract : The restoration of the ecological continuity of streams has lately become an iconic policy in France. Its implementation is regulated by ambitious national guidelines mixing water quality issues with biodiversity conservation. The action gives priority to a shift in management which relies on dam removal to create a river ecological network, and thereby a local environment change.This thesis aims at understanding the socio-spatial perception of that ecological-based public action through qualitative methods (documentary research, semi-structured interviews…). One feature of the research draws on a geo-historical approach that makes it possible to put into perspective the issues underscored by the projects implementation. In this respect, it has been decided to investigate two study cases in Brittany (West of France).The change of policy to restore ecological continuity is examined in its structural and substantial dimensions so as to understand its adaptations. Besides, by giving a primacy to the dynamics of conflicts, the analysis of some users' practices and representations highlights the rivers spaces appropriations. It also contributes to determining the differences of opinion between the participants of the projects. Beyond conflicts, the results also illustrate the local lack of legitimacy and socialefficiency of such an ambitious but experimental environmental policy to restore ecological continuity, that is yet to be constructed in both its ecological and social features.
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Submitted on : Monday, July 2, 2018 - 1:10:55 AM
Last modification on : Monday, July 6, 2020 - 3:38:17 PM
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  • HAL Id : tel-01827251, version 1


Caroline Le Calvez. Les usagers confrontés à la restauration de la continuité écologique des cours d’eau : approche en région Bretagne. Géographie. Université Rennes 2, 2017. Français. ⟨NNT : 2017REN20053⟩. ⟨tel-01827251⟩



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