Methodological approach for assessing the potential riisk of soil erosion using remote sensing and GIS in the Oued El Malleh watershed (Pre-Rif,, Morocco).

This paper presents the results of our study on mapping the spatial evolution of the land from the modeling process oferosion. Indeed, this contribution aims determining rapid changes in land cover and land use and modeling of soil erosionin the study area where we have little data and that soil losses are mainly water. Analysis of satellite data has identifiedsix main types of land (Land severely degraded, cereal, mix cereal and tree crops, trees, and reforestation) in thewatershed of Oued El Mellah north the city of Fez (Morocco).The loss of soil have been estimated by the RUSLE moduleintegrated into the GIS Idrisi. The results allow the identification of sectors across the basin where interventions areneeded to limit the process of land degradation