Preference Index-Based Allocation of Optimized Cropping Area at the Mirpurkhas Subdivision: Jamrao Irrigation Scheme in Sindh, Pakistan
Publication: Journal of Irrigation and Drainage Engineering
Volume 141, Issue 12
Abstract
Optimal utilization of limited water resources is important due to the continuously increasing demand for it. This study was aimed at devising a model and a preference index for allocating limited land and water resources at the Mirpurkhas subdivision of the Jamrao irrigation scheme in Sindh, Pakistan. The deterministic linear programming (DLP) model formulated was set to the minimum and maximum area constraints and applied for different scenarios (at levels of 100, 70, 60, and 50% of existing water supply), in an effort to find the optimum conditions of land area allocation. Emphasis was given to the cultivation of vegetable, banana, and oilseed crops during times of shortages of water. Upon optimization with the DLP model, the proposed preference index was found to be an effective guide in equitable distribution among the competing command areas through the resulting competitive and conflict-free allocating of the resources. The model cum index that was developed is proposed to be adopted while formulating the policy regarding land and water resources allocation during reduced canal flows at the Mirpurkhas subdivision of the Jamrao irrigation scheme at Sindh, Pakistan.
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Acknowledgments
The authors are highly indebted to the director of the Nara Canal Area Water Board for providing pertinent data which led to the fruitful completion of this study. The assistance of the Pakistan Meteorological Station, Karachi, and the Drainage Research Center is also acknowledged. The authors convey their sincere thanks to the farmer community for sharing their experiences and information. Thanks are also due to the editor and anonymous reviewers for their constructive comments, which greatly improved the paper.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 141 • Issue 12 • December 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Dec 10, 2014
Accepted: Apr 2, 2015
Published online: May 28, 2015
Discussion open until: Oct 28, 2015
Published in print: Dec 1, 2015
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