https://www.academia.edu/180815322/Cartographie_par_t%C3%A9l%C3%A9d%C3%A9tection_de_la_dynamique_et_de_la_d%C3%A9gradation_de_la_v%C3%A9g%C3%A9tation_du_site_Ramsar_1018_Sud_B%C3%A9nin_de_2000_%C3%A0_2025
The degradation of vegetation cover is a major environmental concern for wetlands, particularly for Ramsar site 1018, located in southern Benin. The objective of this study is to assess the level of vegetation degradation at this site. The methodology relies on the use of multispectral satellite imagery, Geographic Information Systems (GIS), Multi-Criteria Evaluation (MCE), the Analytic Hierarchy Process (AHP), and the Pressure-State-Impact-Response (PSIR) model. The results reveal that vegetation degradation varies across the site. Areas of very high degradation account for 14.25% of the site, while areas of high degradation cover 48.01%, representing a combined total of 62.26%. Areas with moderate and low degradation account for 19.50% and 18.24% of the site, respectively. The PSIR analysis highlights several pressure factors, notably extensive agriculture (40%), deforestation (25%), urbanization (20%), and bushfires (15%). These findings underscore the importance of strengthening vegetation monitoring and prioritizing conservation and ecological restoration interventions to preserve the ecological functions of Ramsar site 1018.
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