Canal Operations Planner. II: Minimizing Inequity
Publication: Journal of Irrigation and Drainage Engineering
Volume 142, Issue 12
Abstract
Equity of water distribution is an oft-repeated and stated aim of the warabandi irrigation systems prevalent in Pakistan and parts of India. The Canal Operations Plan is one tool used to operationalize equitable distribution of water. These plans are created for every canal system every crop season. This companion paper applies operations research tools to this problem and explicitly minimizes inequity as measured by the Gini index of the cumulative depth of water supplied. The results are analyzed and compared with those obtained from the models of the companion paper that maximize delivery performance ratio (DPR) and conclude that the linear programme-delivery performance ratio (LP-DPR) model given in the companion paper is overall slightly superior to the linear programme-inequity (LP-INEQ) model presented in this paper. This paper highlights that a performance indicator of equity such as the Gini may not fully capture the sense of fairness from a farmer’s perspective. Application of this research is demonstrated through an engineering application in the preparation of a canal operations plan for the summer 2016 and winter 2016–2017 crop season.
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Acknowledgments
The International Water Management Institute (IWMI) is in receipt of financial support from the Embassy of the Kingdom of Netherlands, Islamabad, Pakistan through Grant No. 22294, and the CGIAR Research Program on Water, Land, and Ecosystems (WLE) which were used in part to support this study. The study design, data collection, analysis and interpretation of the results are exclusively those of the authors.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 142 • Issue 12 • December 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Apr 17, 2015
Accepted: Apr 25, 2016
Published online: Jul 14, 2016
Published in print: Dec 1, 2016
Discussion open until: Dec 14, 2016
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