Nature-based solution for water management: a case study in The Rangsit area, Thailand | |
| Author | Sirapee Ditthabumrung |
| Call Number | AIT Thesis no.WM-18-13 |
| Subject(s) | Water--Thailand--Rangsit--Management Hydrodynamic models |
| 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 | The Nature-based Solution is inspired and supported by nature and use, or mimic, natural processes to contribute the improved management of water. The Rangsit area has an existing 100 year irrigation and canal system in order to distribute water for farmer. This area has a furrow and canal network that leads to the capacity to store flood water in flood situation. In 2011, the huge flood occurred in Thailand, but the Rangsit area had not much damages because water was stored in the furrow and canal system. A Nature-based Solution for water management was applied to use the furrow and canal system of the Rangsit area as a flood retention area to improve the flood operation and management during peak periods. Furthermore, the area has acidic soil conditions, but the area still perform well in agriculture under the normal water operation. The purposes of this study were to quantify the storage capacity by applying a Nature-based Solution for water management, and assessment of de-acidification of soil from water operation and management in the area. The quantification of a Nature-based Solution was conducted using hydrodynamic model (MIKE 11) in order to investigate the capacity of the furrow area for water storage during the crisis operation at peak water level in Western Raphipat canal on October 2016. The storage capacity of furrow was estimated to be 753 m3/Rai or 1.3 MCM. The result of the simulation showed that diverting water from Western Raphipat canal into Rangsit community area perform well in reducing 34 cm of water level. Furthermore, in crisis operation, Klong 8 drainage canal can store an additional of 290,000 cubic meter of water, and the furrow area can store an additional of 68,000 cubic meter of water. Moreover, the increasing furrow storage capacity up to 2.3 MCM found that after increased the capacity the furrow can store higher amount of water at the same water level. In addition, the increase in drainage canal inflow lead to further reduction 30 cm of water level in the main canal and more water stored in the furrow. The operation on water of the Rangsit irrigation system for agriculture which uses alkaline water from Pasak River, can help in balancing and reducing acidity of soil in the area. In addition, it leads to the improved quality of soil and water in the area, and can be appropriately for utilized for cultivation and other activities. |
| 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) | Sutat Weesakul; |
| Examination Committee(s) | Duc Hoang Nguyen;Shrestha, Sangam; |
| Scholarship Donor(s) | Royal Thai Government Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2018 |