Proceedings of the Korea Water Resources Association Conference (한국수자원학회:학술대회논문집)
- 2016.05a
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- Pages.519-519
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- 2016
Simulation of IWR Based on Different Climate Scenarios
- Junaid, Ahmad Mirza (Dept. of Agricultural Civil Eng., Kyungpook National University) ;
- Arshad, M. (Dept. of Irrigation & Drainage, University of Agriculture) ;
- Choi, Kyung-Sook (Dept. of Agricultural Civil Eng., Kyungpook National University)
- Published : 2016.05.25
Abstract
Upper Chenab Canal (UCC) is a non-perennial canal in Punjab Province of Pakistan which provides irrigation water only in summer season. Winter and summer are two distinct cropping season with an average rainfall of about 161 mm and 700 mm respectively. Wheat-rice is common crop rotation being followed in the UCC command area. During winter season, groundwater and rainfall are the main sources of irrigation while canal and ground water is used to fulfil the crop water requirements (CWR) during summer. The objective of current study is to estimate how the irrigation water requirements (IWR) of the two crops are going to change under different conditions of temperature and rainfall. For this purpose, 12 different climatic scenarios were designed by combining the assumptions of three levels of temperature increase under dry, normal and wet conditions of rainfall. Weather records of 13 years (2000-2012) were obtained from PMD (Pakistan Meteorological Department) and CROPWAT model was used to simulate the IWR of the crops under normal and scenarios based climatic conditions. Both crops showed a maximum increase in CWR for temperature rise of