A comparative study to assess surface water's anthropic and natural vulnerability using the DKPR and RUSLE approaches. Case of the watershed of the Joumouaa dam (Coastal basin of Ghiss, North East Morocco)

The salinization of surface water in a coastal context leads to qualitative degradation this resource by various sources anthropogenic and natural pollution. In context, we present the results comparative study using "DKPR" "RUSLE" models evaluate degree vulnerability against pollution, especially sub-watershed Joumouaa dam, hydraulic infrastructure providing drinking for Targuist city. model adopted as approach involves four parameters: Accessibility aquatic environment (D), Water functioning soil subsoil (K), Physiography watershed (P), Rainfall erosivity (R). final result is map obtained combining index maps these parameters remote sensing GIS. applied quantitative integrates five factors multiplying function, namely: rainfall (R), erodibility slope length steepness (LS), cover-management (C), conservation practices (P) GIS environment. analysis approaches mentioned above will be helpful support managers decision-makers better identify areas high risk their protection.