Mansour Jahantigh
Department of Soil Conservation and Water Manage- ment, Agriculture and edition Natural Resources Re- search Center (AREEO), Zabol, Iran
Publications
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Research Article
Appropriate Method of Determination the Sediment Retained by Check Dams in Arid Region (South Eastern Iran)
Author(s): Mansour Jahantigh* and Moien Jahantigh
Check dams as an important engineering structure are widely used to modify the hydrological responses and reduce soil erosion in watersheds. Hence, to identify the effectiveness of check dams and gain better insight into the construction of this structure in arid areas, it is necessary to present the adapted method to calculate the sediment volume trapped by check dam system. In this study, we evaluate three methods to calculate and estimate the sediment volume trapped by check dam systems based on geometric shapes including U-shaped geometric, Prism, and Pyramid. These methods were tested on a sample of 25 check dams that were constructed in the Snib basin (southeast Iran). by topographical survey and applying technical field works, the dimensions of the sediment deposited behind of each check dam were measured and the volume of retained sediment, Trap efficiency, sediment yield, tot.. Read More»