Assessment of climate change impacts and adaptation measures for rice production in Yezin, Myanmar | |
| Author | Wuit Yi Lwin |
| Call Number | AIT Thesis no.AS-15-01 |
| Subject(s) | Crops and climate--Myanmar Rice--Climatic factors--Myanmar |
| Note | A thesis submitted in partial fulfillment of the requirements for the Degree of Master of Science inAgricultural Systems and Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AS-15-01 |
| Abstract | Crop simulation models are effective tools in analyzing climate change and its impacts on crop production by considering various factors of climate, soil, crop and management practices and relationship between these factors. This study was conducted with the purposes1)to forecast changes of climate variables; air temperatures and precipitation in area under different climate scenarios, 2)to simulate future rice yield in area under different scenarios, 3) to evaluate possible adaptation strategies for rice production in Yezin area based on the simulated results. MIROC 5 and CSIRO mk 3.6.0 wereselected for this study andfuture climate variables wereprojected under RCP 4.5 and RCP 8.5 scenarios. Future maximum, minimum temperatures and precipitations wereprojected under two GCMs with two scenarios. Future maximum and minimum temperatures werein increasing trend compared with baseline period in both GCM and mean annual precipitation tendedto increase under MIROC 5 while it wasin decreasing trend under CSIRO. Aquacrop version 4.0 was used to simulated rice yield in study area. Calibration andvalidation of model weredone with experiment data during 2009 to 2012. According to the simulated results, rainfed rice yield wouldbe increased in future period compared with baseline under MIROC 5. But yield was in decreasing trend under CSIRO because of soil water deficit during early vegetative stage and flowering stage. According to the results, two set of adaptation measures wereapplied and yield was simulated. Shifting sowing dates 7, 14, 21 and 28 daysearlier and later ofcurrent planting date were used to simulate rice yield. Yield is increased under earlier planting dates and yield reduction is found under late planting dates of both GCMs. Crop water requirement of rice is calculated and applied to irrigation schedule. Irrigation water requirement is higher under CSIRO than MIROC 5. Increased amount of yield is also higher under CSIRO than MIROC 5. |
| Year | 2015 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AS-15-01 |
| 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 | Agricultural and Aquatic Systems(AS) |
| Chairperson(s) | Datta, Avishek |
| Examination Committee(s) | Shrestha, Sangam;Shrestha, Rajendra |
| Scholarship Donor(s) | Norwegian Ministry of Foreign Affairs |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2015 |