气候变化领域集成服务门户(CCPortal): The economic value of local water supplies in Los Angeles

CCPortal

DOI	10.1038/s41893-018-0068-2
	The economic value of local water supplies in Los Angeles
	Porse E.; Mika K.B.; Litvak E.; Manago K.F.; Hogue T.S.; Gold M.; Pataki D.E.; Pincetl S.
发表日期	2018
ISSN	2398-9629
起始页码	289
结束页码	297
卷号	1 期号:6
英文摘要	Los Angeles imports water over long distances to supplement local supplies. Reduced reliability of the available imports is driving many local agencies to promote conservation and enhance local water sources. These include stormwater capture, water reuse and groundwater. But financial considerations are often a significant impediment to project development, especially when comparing new and existing sources. Here we demonstrate a comprehensive approach for evaluating the economic implications of shifting to local water reliance in Los Angeles County. We show that local water supplies are economically competitive. Results from integrated hydroeconomic modelling of urban water in Los Angeles identify cost-effective water supply portfolios and conservation targets. Considering costs across the 'full-cycles' of urban water supply that span agency boundaries yields better comparisons of planning alternatives. Throughout the region, many water retailers could successfully mitigate effects of imported water cuts while still supporting drought-tolerant landscapes, but some would suffer due to over-reliance on imports. Updating economic assessment methods would support needed innovations to achieve local reliance in Los Angeles, including infrastructure investments, institutional reforms, many more drought-tolerant landscapes and reallocated groundwater rights. © 2018 The Author(s).
语种	英语
scopus关键词	Cost effectiveness; Drought; Groundwater; Investments; Wastewater reclamation; Water supply; Water supply systems; Conservation targets; Economic assessments; Economic implications; Hydro-economic modelling; Infrastructure investment; Institutional reforms; Project development; Urban water supply; Water conservation
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163421
作者单位	Office of Water Programs, California State University, Sacramento, Sacramento, CA, United States; Institute of the Environment and Sustainability, University of California, Los Angeles, Los Angeles, CA, United States; Department of Biology, University of Utah, Salt Lake City, UT, United States; Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, United States; Institute of the Environment and Sustainability and Sustainable la Grand Challenge, University of California, Los Angeles, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Porse E.,Mika K.B.,Litvak E.,et al. The economic value of local water supplies in Los Angeles[J],2018,1(6).
APA	Porse E..,Mika K.B..,Litvak E..,Manago K.F..,Hogue T.S..,...&Pincetl S..(2018).The economic value of local water supplies in Los Angeles.Nature Sustainability,1(6).
MLA	Porse E.,et al."The economic value of local water supplies in Los Angeles".Nature Sustainability 1.6(2018).