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Optimal land and water allocation in the Bhairawa-Lumbini Groundwater Irrigation Project | |
Author | Karn, Ratneshwar Lal |
Call Number | AIT Thesis no.IR-92-18 |
Subject(s) | Bhairawa-Lumbini Groundwater Irrigation Project |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
Publisher | Asian Institute of Technology |
Series Statement | Thesis ; no. IR-92-18 |
Abstract | An optimization and simulation methodology for resource allocation of a groundwater irrigation project is presented here in. Multiobjective decision making techniques are used to analyze land-water allocation problems from the viewpoint of conflicting multiple objectives. The resource allocation model is used to find a compromise strategy for trading off net agricultural benefit, irrigated area and operation and maintenance cost. A constraint method is used to generate the set of nondominated solutions which are the alternative compromised strategies. The distributed parameter simulation model is used to evaluate the influence of irrigation system operating policies defined by the optimization model. The optimization model is solved by using the linear programming model. The results of the analyses indicate that trade-off exist between the objectives of maximizing net economic benefit(objective-1), total irrigated cropped area(objective-2) and minimizing O&M cost(objective-3). The trade-off between net benefit and O&M is not significant, but keeping in view the current policy of the project to handover the tubewells to the farmers for full recovery of O&M cost, it will be more important for the users to cope up with the project policy of increasing water charges from NRs 400/ha/year to NRs 1000/ha/year. The simulation model results indicate that optimized water allocation policy will cause a drawdown up to 7m in the new well field areas. Problems and constraints in the handing over of the tubewells and possibilities of increasing farmers ability to pay water charges are discussed. |
Year | 1993 |
Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IR-92-18 |
Type | Thesis |
School | School of Environment, Resources, and Development (SERD) |
Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
Academic Program/FoS | Irrigation Engineering and Management (IR) |
Chairperson(s) | Gupta, Ashim Das;Onta, Pushpa Raj; |
Examination Committee(s) | Loof, Rainer;Oron, Gideon; |
Scholarship Donor(s) | USAID Nepal; |
Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1993 |