Abstract
Climate change will affect irrigation water demand of rice via changes in rice physiology and phenology, soil water balances, evapotranspiration and effective precipitation. As agriculture is the main sector of water use in Bangladesh, estimation of the agricultural water demand in the changing environment is essential for long-term water resources development and planning. In the present paper, a study has been carried out to estimate the change of irrigation water demand in dry-season Boro rice field in northwest Bangladesh in the context of global climate change. The study shows that there will be no appreciable changes in total irrigation water requirement due to climate change. However, there will be an increase in daily use of water for irrigation. As groundwater is the main source of irrigation in northwest Bangladesh, higher daily pumping rate in dry season may aggravate the situation of groundwater scarcity in the region.
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Shahid, S. Impact of climate change on irrigation water demand of dry season Boro rice in northwest Bangladesh. Climatic Change 105, 433–453 (2011). https://doi.org/10.1007/s10584-010-9895-5
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DOI: https://doi.org/10.1007/s10584-010-9895-5