APPLICATION DE LA METHODE DKPR POUR LA CARTOGRAPHIE DE LA VULNERABILITE A LA CONTAMINATION DES EAUX DU BARRAGE DE SMIR (MAROC SEPTENTRIONAL)

The mapping of the vulnerability to contamination of the waters of the Smir dam with polluting products is an important tool to contribute to the protection of the quality of these waters. For this purpose, we applied the DKPR method; this depends on four factors: (a) Hydraulic distance (D); (B) Hydrological operation of the soil and subsoil (K); (C) Watershed physiography (P); D) Erosivity of rain (R).According to the vulnerability map of the resource for the Smir watershed, five zones were determined by the DKPR method, with very diversified percentages, this zone being very vulnerable (2% of the area (46%), the low vulnerability zone (11%), and finally the zone with very low vulnerability, represents 5% of the area Of the watershed