SIMGRO, a GIS-Supported Regional Hydrologic Model in Irrigated Areas: Case Study in Mendoza, Argentina
Publication: Journal of Irrigation and Drainage Engineering
Volume 134, Issue 1
Abstract
The SIMGRO hydrologic simulation model was extended to include irrigation practice. It could then be used to evaluate the effect of hydrologic changes in an irrigated area in the province of Mendoza, Argentina where, given an average annual rainfall of approximately , irrigation is crucial for agriculture. A storage dam was recently constructed in the Mendoza River to control the fluctuating river flow and to guarantee that the demand for water is met throughout the year. The dam will impact on parts of the irrigation system where groundwater levels are already high and salinization occurs. To evaluate these changes and possible mitigation measures, two performance indicators that consider groundwater and surface water were used: Relative evapotranspiration and the depleted fraction. Scenario runs revealed that the irrigation water losses from the canals affect the groundwater levels in the downstream part of the irrigated area; an increase in salinity was also revealed.
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Acknowledgments
The project presented in this paper has been carried out with support from the Dutch Ministry of Agriculture, Nature Management and Food Quality. Joy Burrough advised on the English.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 134 • Issue 1 • February 2008
Pages: 43 - 48
Copyright
© 2008 ASCE.
History
Received: Sep 27, 2006
Accepted: Apr 9, 2007
Published online: Feb 1, 2008
Published in print: Feb 2008
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