الملخص

The summary of this research is the preparation of surface drainage network map as interpreted from normal color satellite image at a scale of (1:100.000), recorded in 2001. The study area reflects the existence of different types of drainage systems such as (Dendritic, subparallel and pinnate) resulted from the differences in rock type and degree of slopes. The gully erosion maps of study area which taken from the surface drainage network were compiled using the Surfer 8 program depending upon (Bergsma, 1982) system. The research region was affected by gully erosion and classified into three zones. Zone of slight erosion at rate of 21.17%, medium erosion zone at rate of 58.39%, and severe zone at rate of 20.44%.