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L'évolution des mangroves de la Basse Casamance au Sud du Sénégal au cours des 60 dernières années : surexploitation des ressources, pression urbaine, et tentatives de mise en place d'une gestion durable

Abstract : Degradation of mangroves in Casamance has been strongly influenced by physical constraints. But it is urban sprawl due to population growth, the sharp drawdown of its resources by the population and the implementation of inadequate technical facilities to which accentuated its destruction.The analysis of the history of the uses of this ecosystem, its perception by people of diverse origins, changes in land laws and the specific political context in the region explainalso this situation. It is thus noted that over the years the peri-urban mangrove Ziguinchor keeps losing surfaces. Yet since the 1990s, the beginning of the growing awareness of its importance ecosystem led to the multiplication of projects from development and environmental protection agencies to curb this phenomenon. It appears however as a result of investigations carried out on the ground with the population and operators of these development initiatives including reforestation of mangroves have not always had the desired results, and that because of their low acceptability social, the existence of large disparities in the performance of work and in the allocation of labor resources.Given these difficulties, work tracks are proposed including a Geographic Information System (GIS) which allows for an update on changes in land use.This work provides insight into the changes in land use, including mangrove populations with changing practices and increasing needs. It also helps to have a database onthe development of ground units in the area peri-urban Ziguinchor.
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Olivier Aghandoul Bassene. L'évolution des mangroves de la Basse Casamance au Sud du Sénégal au cours des 60 dernières années : surexploitation des ressources, pression urbaine, et tentatives de mise en place d'une gestion durable. Géographie. Université de Lyon; Université de Saint-Louis (Sénégal), 2016. Français. ⟨NNT : 2016LYSES040⟩. ⟨tel-01559306⟩

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