气候变化领域集成服务门户(CCPortal): Why increased extreme precipitation under climate change negatively affects water security

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DOI	10.5194/hess-22-5935-2018
	Why increased extreme precipitation under climate change negatively affects water security
	Eekhout J.P.C.; Hunink J.E.; Terink W.; De Vente J.
发表日期	2018
ISSN	1027-5606
起始页码	5935
结束页码	5946
卷号	22 期号:11
英文摘要	An increase in extreme precipitation is projected for many areas worldwide in the coming decades. To assess the impact of increased precipitation intensity on water security, we applied a regional-scale hydrological and soil erosion model, forced with regional climate model projections. We specifically considered the impact of climate change on the distribution of water between soil (green water) and surface water (blue water) compartments. We show that an increase in precipitation intensity leads to a redistribution of water within the catchment, where water storage in soil decreases and reservoir inflow increases. This affects plant water stress and the potential of rainfed versus irrigated agriculture, and increases dependency on reservoir storage, which is potentially threatened by increased soil erosion. This study demonstrates the crucial importance of accounting for the fact that increased precipitation intensity leads to water redistribution between green and blue water, increased soil erosion, and reduced water security. Ultimately, this has implications for design of climate change adaptation measures, which should aim to increase the water holding capacity of the soil (green water) and to maintain the storage capacity of reservoirs (blue water), benefiting rainfed and irrigated agriculture. © Author(s) 2018.
语种	英语
scopus关键词	Agriculture; Catchments; Climate models; Erosion; Plants (botany); Precipitation (meteorology); Reservoirs (water); Soils; Surface waters; Climate change adaptation; Extreme precipitation; Green and blue waters; Irrigated agriculture; Precipitation intensity; Regional climate modeling; Soil erosion modeling; Water holding capacity; Climate change; adaptive management; agricultural soil; catchment; climate change; climate effect; climate modeling; extreme event; precipitation (climatology); precipitation intensity; regional climate; security; soil erosion; water planning; water stress
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159852
作者单位	Eekhout, J.P.C., Soil and Water Conservation Research Group, CEBAS-CSIC, Spanish Research Council, Campus Universitario Espinardo, P.O. Box 164, Murcia, 30100, Spain; Hunink, J.E., FutureWater, Calle San Diego 174a, Cartagena, 30202, Spain; Terink, W., FutureWater, Costerweg 1V, Wageningen, 6702 AA, Netherlands; De Vente, J., Soil and Water Conservation Research Group, CEBAS-CSIC, Spanish Research Council, Campus Universitario Espinardo, P.O. Box 164, Murcia, 30100, Spain
推荐引用方式 GB/T 7714	Eekhout J.P.C.,Hunink J.E.,Terink W.,et al. Why increased extreme precipitation under climate change negatively affects water security[J],2018,22(11).
APA	Eekhout J.P.C.,Hunink J.E.,Terink W.,&De Vente J..(2018).Why increased extreme precipitation under climate change negatively affects water security.Hydrology and Earth System Sciences,22(11).
MLA	Eekhout J.P.C.,et al."Why increased extreme precipitation under climate change negatively affects water security".Hydrology and Earth System Sciences 22.11(2018).