Indian Journal of Soil Conservation

The runoff and sediment yield was estimated for the Dachigam watershed situated in the Catchment area of exhibited Dal lake in Kashmir valley, India. The linear model was used to measure the runoff and sediment yield at outlet of the watershed. The validation of the model was also carried out by evaluating the quantitative tests through the weekly data for five years from 2005 to 2009. Model parameters were determined by multiple regression method on weekly basis. The performance of the model was evaluated using statistical and graphical methods to assess the capability of the model in simulating the runoff and sediment yield. The values of the coefficient of determination (R²) between observed and predicted runoff in different years ranged from 0.86 to 0.92. The sediment yield exhibited strong linear relationship with R² values varying from 0.84 to 0.87. The absolute prediction error (APE) and coefficient of efficiency (CE) for the runoff varies between 2.09 to 4.47% and 80.06 to 88.81%, respectively. The APE and the CE values for the sediment yield of the watershed of the Kashmir valley varies between 2.38 to 7.30% and 78.29 to 84.47% during the years 2005–2009, respectively. The linear regression of the observed and the estimated runoff and sediment yield were strongly correlated. The results indicated that the runoff and sediment yield models for Dachigam watershed could be used in the planning of the watershed management activities for a hilly terrain.