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ARS Home » Plains Area » Fort Collins, Colorado » Center for Agricultural Resources Research » Water Management and Systems Research » Research » Publications at this Location » Publication #375045

Research Project: Response of Ecosystem Services in Agricultural Watersheds to Changes in Water Availability, Land Use, Management, and Climate

Location: Water Management and Systems Research

Title: A comprehensive review of ephemeral gully erosion models

Author
item Douglas-Mankin, Kyle
item ROY, S - UNIVERSITY OF GUELPH
item SHESHUKOV, A - KANSAS STATE UNIVERSITY
item BISWAS, A - UNIVERSITY OF GUELPH
item GHARABAGHI, B - UNIVERSITY OF GUELPH
item BINNS, A - UNIVERSITY OF GUELPH
item RUDRA, R - UNIVERSITY OF GUELPH
item SHRESTHA, N - UNIVERSITY OF GUELPH
item DAGGUPATI, P - UNIVERSITY OF GUELPH

Submitted to: Catena
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/1/2020
Publication Date: 12/1/2020
Citation: Douglas-Mankin, K.R., Roy, S.K., Sheshukov, A.Y., Biswas, A., Gharabaghi, B., Binns, A., Rudra, R., Shrestha, N.K., Daggupati, P. 2020. A comprehensive review of ephemeral gully erosion models. Catena. 195. Article e104901. https://doi.org/10.1016/j.catena.2020.104901.
DOI: https://doi.org/10.1016/j.catena.2020.104901

Interpretive Summary: Modeling of ephemeral gully (EG) erosion has lagged that of other erosion processes despite its major role in watershed sediment erosion and transport worldwide Several process and semi-empirical based simulation models have been used to simulate EGs, but no comprehensive EG model exists. This paper reviews these models and presents a thorough discussion of their background, general formulations, key equations, field assessments, assumptions and limitations. Models reviewed include CREAMS, EGEM, WEPP, AnnAGNPS-REGEM, RUSLER-EphGEE, as well as several empirical and process-based topographic index models. Future research needs and directions to improve the understanding of EG erosion and transport processes are also highlighted and critically discussed.

Technical Abstract: Modeling of ephemeral gully (EG) erosion has lagged that of other erosion processes despite its major role in watershed sediment erosion and transport. Several process and semi-empirical based simulation models have been used to assess the occurrence and location of EGs, magnitude of soil losses from EGs, and degradation, aggradation, and transport of sediment through EGs, but no comprehensive EG model exists. This paper reviews these models and presents a thorough discussion of their background, general formulations, key equations, field assessments, assumptions and limitations. Models reviewed include CREAMS, EGEM, WEPP, AnnAGNPS-REGEM, RUSLER-EphGEE, and various empirical and process-based topographic index models. Future research needs and directions to improve the understanding of EG erosion and transport processes are also highlighted and critically discussed.