Skip to main content
ARS Home » Plains Area » El Reno, Oklahoma » Oklahoma and Central Plains Agricultural Research Center » Agroclimate and Hydraulics Research Unit » Research » Publications at this Location » Publication #413907
Research Project: Impacts of Variable Land Management and Climate on Water and Soil Resources

Location: Agroclimate and Hydraulics Research Unit

Title: Advances in irrigation simulation for better watershed modeling

Author
item XIANG, ZAICHEN - Oklahoma State University
item Moriasi, Daniel
item SAMIMI, MARYAM - Oklahoma State University
item MIRCHI, ALI - Oklahoma State University
item TAGHVAEIAN, SALEH - University Of Nebraska

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/18/2024
Publication Date: 3/8/2024
Citation: Xiang, Z., Moriasi, D.N., Samimi, M., Mirchi, A., Taghvaeian, S. 2024. Advances in irrigation simulation for better watershed modeling. Meeting Abstract. 2024 ASABE Oklahoma Annual Meeting, OSU, March 8, 2024.

Interpretive Summary:

Technical Abstract: Irrigation uses a lot of water from both surface water and groundwater, profoundly affecting hydrologic fluxes in agricultural watersheds. Consequently, it is crucial to accurately represent the irrigation component in watershed hydrologic modeling to support conservation-focused agricultural management practices and climate change adaptation planning. The main objective of this study was to develop and incorporate a novel irrigation algorithm routine into the Soil and Water Assessment Tool (SWAT) model to establish SWAT-IRG, with the aim of improving SWAT’s irrigation simulation for various irrigation systems. This enhancement introduces two new irrigation options each with four irrigation systems (surface, sprinkler, center-pivot, and drip). We will provide a brief discussion of SWAT-IRG development with corresponding components. We will also present an example application of SWAT-IRG at the Fort Cobb Reservoir Experimental Watershed in central Oklahoma to show the use of SWAT-IRG. USDA is an equal opportunity provider and employer.