Accurate estimation of water and soil losses from agro-ecologically diverse areas is extremely important for designing appropriate resource management or soil/ water conservation measures. The developed KWGIUH-MUSLE(Kinematic wave-Geomorphlogical Instantaneous Unit Hydrograph-Modified universal Soil loss equation) model is tested for its sediment yield estimation potential on three agro-ecologically diverse microwatersheds in Almora district of Uttranchal.It is observed that estimates are associated with about 49% mean relative errors and mean DV value of about 0.51 in Salla Rautella and Naula micro-watersheds. This showed that point predictions of annual sediment yields are of moderate quality. However, root mean square error estimates and comparison of mean and standard deviation values for the observed and simulated sediment yields showed that long term sediment yields could beestimated quite realistically. This is also observed in Deolikhan micro-watershed that storm wise sediment yield estimates are associated with about 6% mean relative error and 0.94 mean DV value. The analysis thus clearly showed that the developed KW-GIUHMUSLE model could indeed be utilized for obtaining reasonable sediment yield estimates for un-gauged/ inadequately gauged micro-watersheds.
کلید واژگان :Sediment yield modeling, GIS application, KW-GIUH, Micro-watersheds, MUSLE
ارزش ریالی : 600000 ریال
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