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Simulation Accuracy of EROSION-3D Model for Estimation of Runoff and Sediment Yield from Micro-Watersheds
oleh: Manmohanjit Singh, Abrar Yousuf, Harpreet Singh, Sukhdeep Singh, Kerstin Hartsch, Michael von Werner, Abdulrazak H. Almaliki, Ashraf Y. Elnaggar, Enas E. Hussein, Hager R. Ali
Format: | Article |
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Diterbitkan: | MDPI AG 2022-01-01 |
Deskripsi
The present study was conducted to test the efficiency and applicability of the EROSION-3D (Jürgen Schmidt, Berlin, Germany) model in the lower <i>Shivaliks</i> 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 <i>Shivaliks</i>. For sediment yield, the overall statistical parameters, namely RMSE (0.365 Mg ha<sup>−1</sup>), 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<sup>−1</sup>), 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 <i>Shivaliks</i> of Northwest India. Therefore, the EROSION-3D may be used as decision support system for soil conservation management decisions in the lower <i>Shivaliks</i> of India.