**Investigation of Effective Factors on Runoff Generation and Sediment Yield of Loess Deposits Using Rainfall Simulator**

 S. Feiznia1, M. Nohtani2, H. Ahmadi1 and H. Peyrowan3 *1University of Tehran, Karaj 2University of Zabol, Zabol 3Soil Conservation and Watershed Management Research Center, Tehran Iran* 
