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United States Department of Agriculture

Agricultural Research Service

Research Project: Improved Understanding of Erosion Processes and Evaluation of Conservation Practices in Agricultural Watersheds

Location: Watershed Physical Processes Research Unit

Project Number: 6408-13000-023-37
Project Type: Nonfunded Cooperative Agreement

Start Date: Mar 01, 2013
End Date: Feb 28, 2018

Objective:
Conduct laboratory, field and modeling studies to quantify erosion processes by concentrated flows in agricultural watersheds for development of improved erosion control practices and assessments.

Approach:
This research will perform studies to evaluate runoff and landscape properties, such as topographic profiles, soil properties, and management practices in watershed areas susceptible to ephemeral and edge-of-field gully erosion formation. Field monitoring activities will be performed in conjunction with laboratory measurements to characterize and quantify headcut migration, gully growth, and sediment yield in the study sites. Improved algorithms describing gully erosion processes will be formulated for use in models for extrapolation to different watershed and management conditions. Modeling studies will be performed over a range of field and watershed scales using enhancements developed within the AnnAGNPS model.

Last Modified: 9/2/2014
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