摘要
The study area is located in Southeast of Morocco. It is characterized by the scarcity of water resources including groundwater, which can be threatened by pollution. Therefore, degradation of water quality is growing because the human activity is increasing. The agricultural, urban and industrial activities have contributed in recent decades to increase the potential contamination of water resources. The aim of this project is to assess the vulnerability of groundwater to pollution in the Pre-Saharan zones (case of Tafilalet plain), so it will be an important tool for making decision in the water management sector. The method applied in this work is the DRASTIC method based on the integration of several hydrogeological parameters in a multi-criteria analysis. The results of this study show that the moderate class of vulnerability is the most dominant; it represents 56% of the aquifer area, followed by low vulnerability class with 40%, and the high vulnerability don’t exceed 4%, while the very low and very high vulnerability classes are not encountered in the area study.