Simulation-Optimization Modelling for Sustainable Groundwater Management in a Coastal Basin of Orissa, India

R. Rejani (), Madan Jha and Sudhindra Panda

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2009, vol. 23, issue 2, 235-263

Abstract: The Balasore coastal groundwater basin of Orissa in eastern India is under a serious threat of overdraft and seawater intrusion. Two optimization models were developed in this study for the efficient utilization of water resources in Balasore basin during non-monsoon periods: (a) a non-linear hydraulic management model for optimal pumpage, and (b) a linear optimization model for optimal cropping pattern in integration with a calibrated and validated groundwater flow simulation model. Based on the simulation-optimization modeling results, optimal pumping schedules, cropping patterns, and corresponding groundwater conditions are presented for three scenarios viz., wet, normal and dry years. It was found that optimal pumping schedules and corresponding cropping patterns differed significantly under the three scenarios, and the groundwater levels improved significantly under the optimal hydraulic conditions compared to the existing condition. In dry years, the groundwater levels under the present pumping pattern and the optimal pumpage indicated that the non-monsoon pumpage should not exceed the optimal pumpage in the absence of remedial measures in the basin. It is concluded that in order to ensure sustainable groundwater utilization in the basin, the optimal cropping pattern and pumping schedule should be adopted by the farmers. Copyright Springer Science+Business Media B.V. 2009

Keywords: Simulation-optimization modelling; Optimal cropping pattern; Optimal pumping schedule; Seawater intrusion; Coastal groundwater basin; India (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (13)

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DOI: 10.1007/s11269-008-9273-5

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