Study effect of watershed management on sediment control in dryland region (Case study Taftan basin)

The purpose of this research was watershed management on sediment control in dryland region . To done ýthis research collected inform, maps, reports about rain, sediment and runoff. In second steep done field ýworks and recorded data, collected inform of checkdams dimensions. The measurement rainfall during ýresearch. Measurer put in dam stores to measure of sediment. Measuring specific erosion and specific ýsediment using PSIAC model. The data indicated that the 11 case rain occur more than 10mm in study area ýwhich 6 cases has been runoff, 3 cases rain controlled in dams reservoir and 2 cases has been, not runoff. ýDuring the research 545525 m3 flood came to dams reservoir which 0.037 of them was soil particles and ýother material. Data collected indicate that the 19824 m3 sediment control through dams that each hectare has ýcrated 10 m3 sediment in study area during 2 years.ý