气候变化领域集成服务门户(CCPortal): Distinguishing climate change impacts from development impacts on summer low flows in Puget Sound streams

CCPortal

DOI	10.1111/1752-1688.13203
	Distinguishing climate change impacts from development impacts on summer low flows in Puget Sound streams
	Georgiadis, Nicholas; Bogue, Kevin; Degasperi, Curtis
发表日期	2024
ISSN	1093-474X
EISSN	1752-1688
英文摘要	In many Puget Sound streams, summer low flows have declined in recent decades, and are projected to decline further. Concerns that humans may be responsible have focused on two main causes: anthropogenic climate warming and aspects of development, including urbanization and the abstraction of groundwater. Difficulty in distinguishing their relative impacts has hindered the conception and design of strategies intended to restore and enhance future low flows. We analyzed trends in low flows over recent decades, separating the effects of these factors in two steps. First, low flow variation was assessed in 23 basins that are minimally disturbed by development. Low flows varied over time, and with elevation, in complex ways, consistent with the loss of snowpack at elevations >similar to 800 m. Second, low flow trends in developed lowland basins were compared with trends in a minimally developed lowland reference basin. Flows in developed basins deviated from a purely climate-driven pattern in unique ways, reflecting unique histories of development. In 21 lowland basins, there was no consistent decline in low flows with increasing impervious land cover, at least between 2001 and 2019. Effects on low flows of private wells alone could be assessed in only one basin, but no impact was evident. An assessment of projected relative impacts on low flows of urbanization, rural development, and anthropogenic warming suggested that the latter will be the greatest.
英文关键词	stream low flow; climate change; development; elevation; snowpack
语种	英语
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Environmental ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:001200784700001
来源期刊	JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288371
作者单位	University of Washington; University of Washington Tacoma
推荐引用方式 GB/T 7714	Georgiadis, Nicholas,Bogue, Kevin,Degasperi, Curtis. Distinguishing climate change impacts from development impacts on summer low flows in Puget Sound streams[J],2024.
APA	Georgiadis, Nicholas,Bogue, Kevin,&Degasperi, Curtis.(2024).Distinguishing climate change impacts from development impacts on summer low flows in Puget Sound streams.JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION.
MLA	Georgiadis, Nicholas,et al."Distinguishing climate change impacts from development impacts on summer low flows in Puget Sound streams".JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION (2024).