气候变化领域集成服务门户(CCPortal): Investigating the effects of precipitation on drought in the Hanjiang river basin using SPI

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DOI	10.2166/wcc.2018.102
	Investigating the effects of precipitation on drought in the Hanjiang river basin using SPI
	Liu H.; Wu J.; Xu Y.
发表日期	2019
ISSN	20402244
起始页码	977
结束页码	992
卷号	10 期号:4
英文摘要	The Hanjiang River Basin serves as the water source for the Middle Route South-to-North Water Delivery Project. Droughts are not uncommon in this region and have affected the water supply directly. This study is designed to gain more in-depth knowledge of spatial and temporal drought variations in the Hanjiang River Basin, and the synchronization of drought variations in upstream and downstream regions of the Danjiangkou Dam. Compared with drought analysis in the upstream or the downstream, respectively, research shows the spatial difference between the upstream and the downstream clearly. The following conclusions can be drawn: Standardized Precipitation Indexes in the Hanjiang River Basin did not significantly decrease; droughts considered moderate or worse occurred most frequently in autumn and winter, but most rarely in summer; the cumulative probability of moderate to severe droughts was highest in October and December. Drought conditions in the upstream region varied in a fluctuating way. The upstream region has become increasingly wet since the turn of the 21st century, while the downstream region has become increasingly dry since the 1990s. The probability of synchronous droughts both upstream and downstream was only 9.8%. © IWA Publishing 2019.
英文关键词	Drought; Hanjiang River Basin; Rainfall; SPI
语种	英语
scopus关键词	Drought; Rain; River basin projects; Water supply; Watersheds; Cumulative probabilities; Downstream region; Drought analysis; Drought conditions; Hanjiang rivers; In-depth knowledge; Spatial differences; Upstream region; Rivers; climate change; drought; hydrological response; precipitation assessment; probability; river basin; spatiotemporal analysis; China; Danjiangkou Reservoir; Han River [Hubei-Shaanxi]
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147968
作者单位	Faculty of Resource and Environmental Science, Hubei University, Wuhan, Hubei 430062, China; Department of Geography and Planning, The University of Toledo, Toledo, OH 43606, United States
推荐引用方式 GB/T 7714	Liu H.,Wu J.,Xu Y.. Investigating the effects of precipitation on drought in the Hanjiang river basin using SPI[J],2019,10(4).
APA	Liu H.,Wu J.,&Xu Y..(2019).Investigating the effects of precipitation on drought in the Hanjiang river basin using SPI.Journal of Water and Climate Change,10(4).
MLA	Liu H.,et al."Investigating the effects of precipitation on drought in the Hanjiang river basin using SPI".Journal of Water and Climate Change 10.4(2019).