Evaluation of climate change impacts and adaptation strategies for rice and maize cultivation in the highlands of Northern Thailand | |
| Author | Chhetri, Ankit Poudyal |
| Call Number | AIT Thesis no.WM-22-01 |
| Subject(s) | Climatic changes--Thailand--Northern Rice--Thailand--Northern Corn--Thailand--Northern |
| 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 | Climate change pose a significant threat to agriculture in South-East Asian countries and Thailand being one of them. Global climate change has affected the rice and maize yield in future. This study analyses the impact of climate change in rice and maize production and adaptation strategies in highlands of Nan Province. Three GCMs namely EC-Earth3, EC-Earth3-CC and Nor-ESM2-MM were used for the future climate data and, projections were done for SSP 245 and SSP 585. Linear scaling method of bias correction was used in this study. The predicted temperature in the Nan Province showed significant rise in both minimum and maximum temperature after bias correction of GCMs data. The rise in minimum and maximum temperature is greater in SSP 585 then SSP 245. Both seasonal and annual precipitation is expected to rise slightly for both SSP 245 and SSP 585. AquaCrop version 6.1 was used to simulate the rice and maize yield in the study area. Calibration and validation of the model were done with the observed data from 2011-2019. According to the results, both rice and maize yield will increase in future for all GCMs. Two adaptations measures were applied for maize and three for rice, and yield was simulated. Shifting of planting date 7,14 and 21 days before and after the current planting date and yield was simulated. Yield is increased under earlier planting dates for maize and reduction was found under later planting dates. However, there is reduction in yield for rice under both earlier and later planting dates as well as for changing bund height. Supplementary irrigation also increases the yield under current planting date for both maize and rice. |
| Year | 2022 |
| 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) | Shrestha, Sangam |
| Examination Committee(s) | Shanmugam, Mohana Sundaram;Ho Huu Loc |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2022 |