Potential Erosion And Sediment Estimation Using EPM Model In Catchment Basin Of Arreh kamar of Fariman Using GIS

The Erosion causes fertile lands change to barren grounds and decrease water quality and obstruction of irrigation canals, infill of dam reservoir, vegetation decay and dangerous flood. This research is about erosion and sediment estimation in catchment basin of Arreh Kamar of Fariman using EPM model. This basin with 54.27 ha area is located in Razavi Khorasan Province and south of Fariman township. This basin is threatened by flood. Maximum elevation in this basin is 2628 meters. height and minimum height is 1640 meters. Topographic steep,geological,vegetation, land use and Pedology layers are used for obtaining of variables of model. All of needed factors and maps in this research supplied using Arc GIS. Then the main data and determinants have been analyzed using EPM model. The results show that annual erosion is equal 32703.64 and the amount of annual sediment based on model estimation is 20275.27. The erosion class of applied model locates in high and middle class. So control Policy for erosion and sediment monitoring is inevitable in this basin.