1 Ho Chi Minh City University of
2 Department of Science and Technology Ho Chi Minh City
Research on changes in irrigation needs of short-term crops in Dalat city; including the main types: corn, beans, peanuts, vegetables, flowers and sugarcane. The demand for irrigation water is determined by climate data from 1984-2015 and CROPWAT 8.0 is used as the basis for the forecast until 2035 with climate change scenarios 2016, RCP 4.5 and RCP 8.5. The study results show that, the temperature will increase by 0.4-1.2 oC by 2035. As the temperature increases, the potential evapotranspiration of ET0 increases, leading to an increase in water demand of crops during the dry season. In the rainy season, by 2035, although the temperature increases, the rainfall is relatively heavy (increasing from 0.6mm to 8.9 mm). In 2035, the total demand for irrigation water of these crops will be around 1,363.3 mm / ha, an increase of about 4% compared to 2015 (1,310.9 mm/ha).
Cite this paper
Nguyen Thi Hang, Nguyen Ky Phung (2020), Evaluation of the effects of climate change to water demand for agriculture in Da Lat city, Lam Dong province, Vietnam Journal of Hydrometeorology, 4, 23-30.
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