Skip to main content
ARS Home » Midwest Area » Bowling Green, Kentucky » Food Animal Environmental Systems Research » Research » Publications at this Location » Publication #391967
Research Project: Developing Agronomically and Environmentally Beneficial Management Practices to Increase the Sustainability and Safety of Animal Manure Utilization

Location: Food Animal Environmental Systems Research

Title: Rainfall-runoff models compared for tile-drained agricultural fields in the Western Lake Erie Basin, Ohio

Author
item WESSEL, BARRET - University Of Maryland
item Bolster, Carl
item King, Kevin
item SHEDEKAR, VINAYAK - The Ohio State University

Submitted to: Soil and Water Conservation Society International Annual Conference
Publication Type: Abstract Only
Publication Acceptance Date: 4/12/2022
Publication Date: 7/31/2022
Citation: Wessel, B.M., Bolster, C.H., King, K.W., Shedekar, V.S. 2022. Rainfall-runoff models compared for tile-drained agricultural fields in the Western Lake Erie Basin, Ohio [abstract]. Soil and Water Conservation Society International Annual Conference. Page 111.

Interpretive Summary: .

Technical Abstract: Simple models like the curve number method are commonly used to predict runoff volumes from agricultural fields, playing a key role in nutrient transport modeling and watershed management; however, the curve number method has not been evaluated for use in tile-drained fields and it may therefore produce erroneous runoff predictions if applied in these settings. In this study, we evaluate the curve number method at 12 tile-drained research sites in the Western Lake Erie Basin of Ohio. Rainfall and runoff observations at each of these sites were used to calculate curve numbers using six published variations of the curve number method. These were compared to published curve numbers, selected from NRCS tables to correspond to land use in the study sites. In addition to the curve number methods, the complacent-violent method was also used to develop runoff model parameters for the research sites. Methods were compared to one another using Nash-Sutcliffe efficiency, bias, and R-squared. The curve number methods often performed poorly, and sometimes altogether failed to produce a real solution. Of the rainfall-runoff models evaluated, the complacent-violent method produced the most accurate results and should be used in place of the curve number method to make runoff predictions from tile-drained fields.