Assessment of Runoff and Sediment Yield from a Small Agricultural Watershed
V. S. Malunjkar1, M. G. Shinde2, A. A. Atre3, V. N. Barai4
1Er. V. S. Malunjkar, Department of Soil and Water Conservation Engineering, Mahatma Phule Krishi Vidyapeeth, Rahuri [MH], India.
2Dr. M. G. Shinde, Department of Soil and Water Conservation Engineering, Mahatma Phule Krishi Vidyapeeth, Rahuri [MH], India.
3Dr. A. A. Atre, Department of Soil and Water Conservation Engineering, Mahatma Phule Krishi Vidyapeeth, Rahuri [MH], India.
4Dr. V. N. Barai, Department of Soil and Water Conservation Engineering, Mahatma Phule Krishi Vidyapeeth, Rahuri [MH], India.
Manuscript received on March 01, 2015. | Revised Manuscript Received on March 09, 2015. | Manuscript published on March 20, 2015. | PP: 16-20 | Volume-3 Issue-4, March 2015 | Retrieval Number: D0602033415/2015©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Runoff and soil erosion are very important processes need to be consider during watershed planning and management and are often non-linear and scale dependent, which complicate runoff and erosion modeling at the catchment scale. One of the reasons for scale dependency is the influence of sinks, i.e. areas of infiltration and sedimentation, which lower hydrological connectivity and decrease the area-specific runoff and sediment yield. The simulation models are useful tools for prediction of runoff and soil erosion at plot scale to catchment scale. Various predictive models have been developed by various researchers for predicting runoff and sediment yield from watersheds. The objective of this study was to model runoff and sediment yield for a small watershed using a coupled approach based on Natural Resources Conservation Service Curve Number (NRCS-CN) method and the Universal Soil Loss Equation (USLE). The results showed that the coupled approach of NRCS-CN and USLE model accurately simulate runoff and sediment yield from the study area.
Keywords: Runoff, erosion, simulation, universal soil loss equation.