Abstract
The basin of Wadi al-walaj valley is located within the western Anbar plateau in its northwestern part, and it is one of the seasonal dry valleys with internal water drainage, its size is 4539 km. Depending on the American hypotheses of keeping soil (SCS-CN) to determine the amount of eloping of water. This depends on : the quality of soil, the amount of rain and the cover of land. The basin of al-malousi valley appears to be the most important secondary basin contributing to surface runoff this is due to the quality of the soil with low permeability and the quality of the land cover, which dominated by barren land..
Keywords
Arabic Sources
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