An-Najah University Journal for Research - B (Humanities)


The study aims at evaluating soil erosion in Azraq Basin using soil and water assessment model, GIS and remote sensing. The soil erosion has important negative effects on the ground resources in the basin. As other basins in Jordan, Azraq Basin suffers extremely from soil erosion that resulted from the decrease of soil productivity before being eroded. Soil erosion is related to many environmental problems such as sedimentation in the river channels and dams, and deterioration water quality, so strategies for managing water basins and protecting soil from erosion are needed. The results of the study showed that Azraq Basin has annually an average of 99.8 Mm of rainfall; the majority lost by evaporation process, and 73.8% of the total precipitation is wasted because of the actual evaporation process, whereas surface runoff has 8.9% of the total precipitation of the Basin. The study reveals that about 24.5% of Azraq Basin area suffers from severe soil erosion mainly In Wadi Al-Ghadf and Modaisisat. The Study also reveals that Wadi Modaissat is the largest basin in Azraq Basins, it Produces 58.4% of the total eroded materials.