Representation of agricultural conservation practices with SWAT

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doi: 10.1002/hyp.6890
Authors:Arabi, Mazdak; Frankenberger, Jane R.; Engel, Bernie A.; Arnold, Jeff G.
Author Affiliations:Primary:
Colorado State University, Department of Civil and Environmental Engineering, Fort Collins, CO, United States
Purdue University, United States
U. S. Department of Agriculture/Agricultural Research Service, United States
Volume Title:Hydrological Processes
Source:Hydrological Processes, 22(16), p.3042-3055. Publisher: John Wiley & Sons, New York, NY, United States. ISSN: 0885-6087
Publication Date:2008
Note:In English. 31 refs.; illus., incl. 11 tables, sketch map
Summary:Results of modelling studies for the evaluation of water quality impacts of agricultural conservation practices depend heavily on the numerical procedure used to represent the practices. Herein, a method for the representation of several agricultural conservation practices with the Soil and Water Assessment Tool (SWAT) is developed and evaluated. The representation procedure entails identifying hydrologic and water quality processes that are affected by practice implementation, selecting SWAT parameters that represent the affected processes, performing a sensitivity analysis to ascertain the sensitivity of model outputs to selected parameters, adjusting the selected parameters based on the function of conservation practices, and verifying the reasonableness of the SWAT results. This representation procedure is demonstrated for a case study of a small agricultural watershed in Indiana in the Midwestern USA. The methods developed in the present work can be applied with other watershed models that employ similar underlying equations to represent hydrologic and water quality processes. Abstract Copyright (2008), Wiley Periodicals, Inc.
Subjects:Agriculture; Best management practices; Conservation; Effects; Erosion; Hydrology; Methods; Models; Nonpoint sources; Nutrients; Pesticides; Pollutants; Pollution; Preventive measures; Runoff; Sensitivity analysis; Simulation; Soil erosion; Soil pollution; Soils; SWAT model; Universal Soil Loss Equation; Water pollution; Water quality; Allen County Indiana; Indiana; United States; Northeastern Indiana; Smith Fry watershed; Soil and Water Assessment Tool
Coordinates:N405200 N411500 W0844700 W0852000
Record ID:2008116761
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom
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