Modeling Erosion and Sedimentation in Irrigationby Charles E. Brockway, Univ of Idaho, Kimberly, ID, USA,
Clarence Wm. Robison, Univ of Idaho, Kimberly, ID, USA,
Abstract: Sediment yield and erosion modeling approaches for sprinkler and surface irrigation are discussed. Empirical approaches, such as the ULSE, and other regression approaches and their applicability to irrigated agriculture are identified. Physically based models utilizing sediment transport concepts, and use of various procedures such as kinematic wave or zero-inertia formulations to determine the hydraulics of the flow system are detailed. Sediment removal facilities models, including vegetal filter strips and detention systems, are outlined. Integrated models which predict erosion/sediment yield from different processes are evaluated for application to irrigated watersheds.
Subject Headings: Surface irrigation | Sediment transport | Erosion | Irrigation water | Sprinkler irrigation | Hydraulic models
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