Titre | L'évolution de la pluviométrie au Sénégal et les incidences de la sécheresse récente sur l'environnement / The evolution of rainfall in Senegal and the consequences of the recent drought on the environment | |
---|---|---|
Auteur | Jean-Batiste Ndong | |
Revue |
Géocarrefour Titre à cette date : Revue de géographie de Lyon |
|
Numéro | volume 70, no 3-4, 1995 Sahel, la grande secheresse | |
Page | 193-198 | |
Résumé anglais |
The Sudanese-Sahelian region has been affected by drought, a condition characterized by its long duration, its intensity and its southwards extension. In Senegal average isohyets for the periods 1931-1960 and 1961- 1990, 1970-1993, using data from 32 rainfall stations reveal the southern migration of the different climatic regimes. The reduction in rainfall has resulted in damage to the natural environment. Drought leads to destruction of vegetation. Soils suffer from erosion and gullying. Acidification and salinisation are accentuated, especially in the area of Casamance and the Saloum estuary. Wind deflation is intensified. Source : Éditeur (via Persée) |
|
Article en ligne | http://www.persee.fr/web/revues/home/prescript/article/geoca_0035-113x_1995_num_70_3_4212 |