La Ceinture verte d’Île-de-France à l’épreuve du Grand Paris : effacement ou renouveau ? Reconfigurations spatiales, territoriales et paysagères dans les marges de l’aire urbaine métropolitaine

Abstract : The concept of green belt is a manner of thinking the margins of the surroundings of Paris. This urban planning tool has been used by the Île-de-France regional Council in the early 1980’s. The implementation of a green belt aimed to give a global vision of the woodland, cropland and wasteland in that area. Due to a lack of law support and political changes, the Green belt policy never really came to an existence. However, the area of the Green belt is filled with several expectations in terms of recreation, landscapes, quality of life and environment from the city dwellers and public players. Meanwhile, the Grand Paris project tends, in the same time, to put under pressure these spaces by its urban planning projects, and to consider the idea of a green belt for the Paris region. We have chosen in this thesis to highlight the features of the Green belt by a social and spatial approach of the dynamics through a multiscalar approach. It reveals the fragmentation and the heterogeneity of this space on several levels: spatial organization, landscapes and social distribution. The study of the dynamics concerning the territories shows the discrepancy of the urban planning logics in the Île-de-France region. In the Green belt space, a large number of territory projects occurs around open spaces. It aims, in most of the case, to preserve the qualities of the landscapes (in the vallée de Chevreuse for example) or to attain a certain type of landscape (the forest project in Plaine de Pierrelaye shows that). But this type of territorialities leaves out marginalized population, living in the Green belt space. Finally, this study enlightens the mixed relationship and the tensions between local and metropolitan authorities in a decentralized context.
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Morgane Flégeau. La Ceinture verte d’Île-de-France à l’épreuve du Grand Paris : effacement ou renouveau ? Reconfigurations spatiales, territoriales et paysagères dans les marges de l’aire urbaine métropolitaine. Géographie. Université Paris 13 - Sorbonne Paris Cité, 2018. Français. ⟨tel-02120188⟩

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