Hydrological evaluation of agricultural watershed in Uttar Pradesh

In the present study Universal Soil Loss Equation (USLE) were tested on the event basis for estimating the soil loss and surface runoff and then applied to evaluate the performance of soil conservation structures of Chandaus watershed in U.P State. The topographical and drainage maps of the watershed were used to determine the input parameters of the USLE.

The value of all USLE factors which include rainfall erosivity factor, soil erodibility factor, slope length factor, crop management and conservation practice factors were determined and used for validation of the USLE for estimating the soil loss for the Chandaus watershed. The curve number (CN) for watershed was also determined. Adequately validated USLE was applied for estimating the soil loss. The performance evaluation of soil conservation structures was carried out on the basis of soil loss from watershed and different hydrological parameters based upon standard USLE factor were quantified for Chanduas village.