04086nas a2200505 a 4500 20260818134334.0 200908s2019 th m rtt 000 a eng d .b1231416x AIT Thesis no.WM-19-28 Tahir, Muhammad Naveed Impact of drought on wheat yield under climate change in Pujab and Sindh Provinces of Pakistan Pathum Thani, Thailand : Asian Institute of Technology, 2019 140 leaves : ill. (some col.) + 1 online resource Thesis; no. WM-19-27 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Water Engineering and Management Thesis (M.Eng.) - Asian Institute of Technology, 2019 The intensity and frequency of climate sensitive hydro-meteorological extreme events have been significantly increased since 1970s. Drought is an environmental disaster that adversely affects the human, agriculture, land surface, river flow and the environment. The aim of this study was to quantify the impact of drought on the wheat yield of Pakistan under climate change scenarios. To identify the historical and future drought, SPI drought index was used. Two RCMs (ACCESS-CSIROCCAM & CNRM-CM-CSIROCCAM) was used. It was found that the rainfall is projected to increase in future under RCP 4.5 and RCP 8.5 scenarios. Future drought characteristics showed that drought frequency of the mild and moderate drought is expected to increase in future. Drought impact on wheat yield was calculated at Faisalabad, Gujranwala and Chakwal station by AquaCrop model. It has been observed that about 13.1 % and 12.4% yield is projected to reduce in future due to drought under RCP 4.5 and RCP 8.5 respectively at Faisalabad (canal irrigated) station. Similarly, at Gujranwala (tubewell irrigated) station 13.1 & 17.9% and at Chakwal (rainfed) station 24.8 & 26.4% yield is expected to reduce in future under RCP 4.5 and RCP 8.5 respectively. Laspeyres GDP index for the normal years and drought year was calculated at all three stations. It was observed that Laspeyres index value in drought year was less than normal year value. It was noticed that from 2031-34, drought affect the crop yield at all three stations, which indicated that during this duration drought might be affect the whole study area. Droughts Pakistan Economic aspects Climatic changes Pakistan Wheat Yields Pakistan Babel, Mukand Singh, Chairperson Shrestha, Sangam, Co-Chairperson Datta, Avishek, Examination Committee Ekasit Kositsakulchai, Examination Committee Srivastava, Sanjay, Examination Committee (External Expert) World Bank, Scholarship Donor Punjab Agriculture Department, Pakistan, Scholarship Donor Asian Institute of Technology. Thesis; no. WM-19-28 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B05687 .b1231416x mnait m 240422 0 200908 m a m 0 mnait mnait mnarc mnarc 40 61 20 Barcode : 30050120878151 CREATED : 2019-06-19 RECORD # : i13194677 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : - CREATED : 2019-06-19 RECORD # : i13194689 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120979371 CREATED : 2020-08-09 RECORD # : i13293497 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120979363 CREATED : 2020-08-09 RECORD # : i13293503 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 57992 57992 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.WM-19-28 30050120878151 2026-08-18 13:43:34 2026-08-18 40 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.WM-19-28 2026-08-18 13:43:34 2026-08-18 61 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.WM-19-28 30050120979371 2026-08-18 13:43:35 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.WM-19-28 30050120979363 2026-08-18 13:43:35 2 2026-08-18 20