Assessing the Effects of Climate Change on Irrigation Water Requirement for Corn in Zimbabwe
2011
Nkomozepi, Temba, Kyungpook National University, Daegu, Republic of Korea | Chung, S.O., Kyungpook National University, Daegu, Republic of Korea
Impacts of climate change on net irrigation water requirements on corn in Zimbabwe have been presented. Proportional changes in precipitation available to plants were projected to vary from -15% to +7% depending on the time slice. Temperature was projected to increase by 1.6 to 5.3℃. The overwhelming impact of increased temperatures especially when coupled with decreases in precipitation will cause net irrigation water requirements to increase by 28 to 115% mainly in November to February. With such increases in the net irrigation demand, additional environmental problems may arise as freshwater resources on current agricultural land may not suffice to sustain a rising national food demand.
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