Estimating the extent of erosion using the RUSLE coefficient for Wadi Al-Karmashiya, northeast of Wasit Province

Soil loss is a major cause of land degradation all over the world, especially in large areas of arid and semi-arid regions. The objectives of the study were to estimate the extent of erosion and soil erosion using several indicators, especially the effect of rain coefficient, soil erodibility coefficient, slope coefficient, and cover coefficient. Plant and soil conservation factors, through RUSLE laboratories, as well as employing geographical information systems to obtain results related to soil erosion in the Karmashiya Basin, as the study showed that the volume of erosion in the basin ranged between 5-265 tons/ha/year, and that the areas most affected by erosion Those extending along the waterways, especially the central and southern regions of the basin, as well as the agricultural areas spread over a diverse area of the basin’s lands, especially those that do not follow modern methods of tillage and irrigation.