kh. mirnia

Soil erosion posses play a key role in organic matter loss from watershed. Therefore, study of the organic matter on suspended sediment is very important for watershed management and soil and water conservation planning. The present study was conducted in Kojour Watershed to determine loss of the suspended sediment associated organic matter. The suspended sediment and organic matter sampling was made via depth integration. The results of this study showed that 57 ton organic matter loss from 8 rainfall events and 48gr om in 1 kg sediment loss in each rainfall this period.