T1 The Lake Chad conventional basin: a diagnostic study of environmental degradation A1 United Nations Environment Programme, A1 United Nations Sudano-Sahelian Office, K1 environmental health K1 soil erosion K1 groundwater K1 wildlife K1 forced migration K1 drought K1 environmental impact assessment K1 animal health K1 climate change YR 1990 FD 1990 LK https://wedocs.unep.org/handle/20.500.11822/29883 UL https://wedocs.unep.org/handle/20.500.11822/29883 NO This document provides a diagnostic study of environmental degradation in the Lake Chad Conventional Basin, focusing on the interplay between natural resources and human activities. It highlights the basin's ecological diversity, including its soils, water systems, and biodiversity, while detailing the severe impacts of drought, overexploitation, and mismanagement. The document emphasizes the need for integrated conservation and development strategies, proposing subdivision into "diagnostic basins" for targeted action. Key concerns include soil erosion, declining fisheries, loss of vegetation, and conflicts over water and land use. Recommendations prioritize flexible, long-term policies, local community involvement, and international cooperation to address degradation and ensure sustainable resource management. DS UN Environment Document Repository RD Sep 20, 2026