Journal
WATER
Volume 14, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/w14030280
Keywords
EROSION-3D; runoff; sediment yield; Shivaliks; watersheds
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Funding
- IPROconsult, Germany [2018/52]
- Taif University, Taif, Saudi Arabia [TURSP-2020/252]
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This study verifies the efficiency and applicability of the EROSION-3D model in predicting runoff and soil loss in micro-watersheds of the Shivalik region in Northwest India. The model demonstrated good accuracy in simulating runoff and sediment yield, making it a reliable decision support system for soil conservation management in the lower Shivaliks of India.
The present study was conducted to test the efficiency and applicability of the EROSION-3D (Jurgen Schmidt, Berlin, Germany) model in the lower Shivaliks of Northwest India. Two similar micro-watersheds in terms of soil characteristics and land use were selected for calibration and validation of the model. The model was calibrated using the data from seven rainstorms of micro-watershed A and validated using data from 11 rainstorms in micro-watershed B. After calibration, the overall statistical parameters, namely RMSE (0.44 mm), percent error (4.92), correlation coefficient (0.94) and model efficiency (88%), clearly indicate that the model simulated runoff quite well in conditions prevalent in Shivaliks. For sediment yield, the overall statistical parameters, namely RMSE (0.365 Mg ha(-1)), percent error (12.71), correlation coefficient (0.97) and model efficiency (88.32%), clearly indicate that the model simulated sediment yield also quite well. During the validation process, for runoff, RMSE (1.72 mm), percent error (19.19), correlation coefficient (0.94), and model efficiency (81.25%) and, for sediment yield, RMSE (0.19 Mg ha(-1)), percent error (17.16), correlation coefficient (0.97), and model efficiency (74.48%) clearly demonstrate the reasonable accuracy of the EROSION-3D model to predict runoff and soil loss from micro-watersheds located in Shivaliks of Northwest India. Therefore, the EROSION-3D may be used as decision support system for soil conservation management decisions in the lower Shivaliks of India.
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