Study on Application of an Optimization Model for Assessing the Performance of Water Appropriation in Iraq

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Study on Application of an Optimization Model for Assessing the Performance of Water Appropriation in Iraq

March 11, 2021 Environment and Earth Science 0

The severity of water shortages in the Middle East is a significant factor in the region’s stability, as well as a critical component in ensuring the region’s long-term economic growth. This study looks at the ongoing issue of water governance in Iraq by looking at how profitability, at both the farm and basin levels, affects water governance. Various water appropriation schemes have an effect. Upstream (UPR), downstream (DPR), and proportional (PSR) water appropriation systems were used to test farmland irrigation in Iraq. An irrigation water model combined with a nonlinear programming (NLP) optimization model was used to assess their effects on farm income under natural, dry, and drought water supply scenarios. Under dry and drought supply conditions, PSR provided a 32 percent and 75 percent rise in total farm income for the Tigris River, respectively, compared to UPR. Under dry and drought supply conditions, PSR provided a 47 percent and 83.5 percent rise in total farm income for the Euphrates River, respectively, relative to DPR. correspondingly The findings of this study are intended to provide guidance to Iraqi decision-makers in the event that water resources are limited in the future, and to show how the PSR can be used as an alternative and effective water allocation rule because of its versatility in providing equal water resource allocation during drought seasons.

Author(s) Details

Ahmed A. Aljanabi
Former, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA.

Larry W. Mays
School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA.

Peter Fox
School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA.

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