| Author | Manatchanok Pannak |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Water Engineering and Management |
| Publisher | Asian Institute of Technology |
| Abstract | Lam Takhong basin is highly vulnerable as it repetitiously flooded almost every year. Being geographically located at the end of the river basin, Lam Takhong reservoir receives very high amount of runoff that is much water than the reservoir capacity for the safety of the dam, the excess water has to release downstream without providing any additional water for irrigation and domestic uses. The main objective of this study is to evaluate current status of water resource in the agriculture, domestic and environment sector, and to propose the best alternative to increase water supply to farmers during dry season. Direct benefits were calculated by assessing the increase in agricultural production, facilitating water storage for dry season using cost benefit analysis. Primary data were collected from 90-farmers field survey in 2018 at irrigated area. Cost of construction and maintenance plan was obtained from Royal Irrigation Department (RID). Three options were proposed for increasing efficiency of providing irrigation water to farmers including; Option 1: Increases capacity for Lam Takhong Reservoir, Option 2: Detention Basin (Monkey Cheek Project) and Option 3: Maintenance of Water Distribution System. Cost benefit analysis only considered the benefit from the crop production computed based on crop price increase using Gross Domestic Product (GDP) per capita. The total cost included initial investment as well as the maintenance cost. The total incremental value of project gathering throughout project 30 years of the life cycle with a discount rate 12%. The results of the study show that all three options are acceptable. The study reveals that the best economic way of water efficiency increase is Option1 due to its high Net Present Value (NPV) among three options, as well as it leads to direct benefit for farmers.
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| Year | 2018 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Duc Hoang Nguyen ; |
| Examination Committee(s) | Faysse, Nicolas;Babel, Mukand S. ; |
| Scholarship Donor(s) | Ministry of Agriculture and Cooperatives (MOAC), Thailand – AIT Fellowship ; |