PREDICTING THE POTENTIAL ANNUAL SOIL LOSS USING THE REVISED UNIVERSAL SOIL LOSS EQUATION (RUSLE) IN THE OUED EL MALLEH CATCHMENT (PRERIF, MOROCCO)

This paper presents the results of our study on mapping the spatial evolution of the land from the modeling process of erosion. This contribution aims at determining rapid changes in land cover and land use and modeling of soil erosion in the study area where we have little data. Analysis of satellite data has identified six main types of land (Land severely degraded, cereal, mix cereal and tree crops, trees, and reforestation) in the watershed of Oued El Mellah north the city of Fez (Morocco). After the loss of soil have been estimated by the RUSLE module integrated into the GIS Idrisi, the results allowed the dentification of sectors across the basin where interventions are needed to limit the process of land degradation.