Irrigation water management in the Sukhothai Groundwater Development Project | |
| Author | Malini, Sabaratnam |
| Call Number | AIT Thesis no. WM-95-27 |
| Subject(s) | Sukhothai Groundwater Development Project Irrigation water--Management |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. WM-95-27 |
| Abstract | Water management is becoming more important, as irrigation competes for limited water supplies, energy and land throughout the world. Also, the world degrade and decline in agricultural productivity because of poor water management. Therefore management of available water resources is a formidable task for engineers and planners. This study deals with one such problem of ground water irrigation project in Northern Thailand. A physically based distributed model is used for identifying the proper and improved management of available water resources. Soil moisture characteristics curves were determined for various soils and crops. Actual evapotranspiration by simulation results of model were determined and compared with traditional method. Recharge to saturated zone in the period of rice cropping found by simulation results were compared with traditional expected values. Irrigation requirement was calculated by simulation and compared with FAO model results. It was concluded that the MIKE SHE model results are in good agreement with FAO model results. Also, it was identified that the amount of application for dry season crop can be reduced in the later stages. The conclusion was applied to the whole area model to see the impacts on soil water and infiltration characteristics. Water balance was analyzed in both cases: prespecified and reduced case of irrigation. Finally it was concluded that the water supply design based on soil moisture level is a better way of water distribution than traditional prespecified input. Also, it is recommended to consider the moisture content at different depths in the whole root zone instead of selecting representative depths. |
| Year | 1996 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. WM-95-27 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Ammentorp, Hans Christian |
| Examination Committee(s) | Gupta, Ashim Das;Loof, Rainer |
| Scholarship Donor(s) | Government of Norway |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology |