Multi-usage des ressources et mobilités : l'intensification dans une zone humide sahélienne. Le lac Tchad vu par sa fenêtre camerounaise

Abstract : The Lake Chad is unique in the Sahelian band. Whereas large scale irrigated schemes has characterized the other wetlands, here the development of agriculture, cattle breeding and fishing has been based on the use of the water floods and on mobilities. Almost virgin until the 1940s, the Lake has become a highly populated and cosmopolitan area, exporting diversified foodstuffs to the urban markets of the sub-region. Through the analysis of agrarian and territorial dynamics of the Cameroonian lake shores, this research questions to which extent multi-use of the natural resources and mobilities may allow further agricultural intensification and population increase in such an uncertain environment.Closer complementarity and synergy between activities pave the way for ecological intensification and territorial development inducing wealth and job generation. Due to its marginal nature, the Cameroonian part of the Lake has been the place of continuous social innovations, ensuring to a great diversity of people the access to productive assets and markets. In this sense, it has been actually decisive for the dynamic of intensification. Hydro-ecological, economic and demographic uncertainty has been integrated into the “normal” functioning of the agrarian system and territory. Nowadays, the political uncertainty threatens the future of the Lake Chad. It results both from agricultural and environmental policies and from conflicts between local authorities, that are constitutives of the relation between the State and the populations.
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Charline Rangé. Multi-usage des ressources et mobilités : l'intensification dans une zone humide sahélienne. Le lac Tchad vu par sa fenêtre camerounaise. Agriculture, économie et politique. AgroParisTech, 2016. Français. ⟨NNT : 2016AGPT0014⟩. ⟨tel-01591378⟩

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