气候变化领域集成服务门户(CCPortal): Watersheds may not recover from drought

CCPortal

DOI	10.1126/science.abd5085
	Watersheds may not recover from drought
	Peterson T.J.; Saft M.; Peel M.C.; John A.
发表日期	2021
ISSN	0036-8075
起始页码	745
结束页码	749
卷号	372 期号:6543
英文摘要	The Millennium Drought (southeastern Australia) provided a natural experiment to challenge the assumption that watershed streamflow always recovers from drought. Seven years after the drought, the runoff (as a fraction of precipitation) had not recovered in 37% of watersheds, and the number of recovered watersheds was not increasing. When recovery did occur, it was not explained by watershed wetness. For those watersheds not recovered, ∼80% showed no evidence of recovering soon, suggesting persistence within a low-runoff state. The post-drought precipitation not going to runoff was found to be likely going to increased evapotranspiration per unit of precipitation. These findings show that watersheds can have a finite resilience to disturbances and suggest that hydrological droughts can persist indefinitely after meteorological droughts. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	drought; evapotranspiration; precipitation (climatology); runoff; streamflow; streamwater; watershed; article; Australia; drought; evapotranspiration; precipitation; runoff; watershed; Australia
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245066
作者单位	Department of Civil Engineering, Monash University, Clayton, VIC, Australia; Department of Infrastructure Engineering, University of Melbourne, Parkville, VIC, Australia
推荐引用方式 GB/T 7714	Peterson T.J.,Saft M.,Peel M.C.,et al. Watersheds may not recover from drought[J],2021,372(6543).
APA	Peterson T.J.,Saft M.,Peel M.C.,&John A..(2021).Watersheds may not recover from drought.Science,372(6543).
MLA	Peterson T.J.,et al."Watersheds may not recover from drought".Science 372.6543(2021).