干旱区生态环境知识资源中心(Arid): Rainwater as a renewable resource to achieve net zero urban water in water stressed cities

Arid

DOI	10.1016/j.resconrec.2020.105203
	Rainwater as a renewable resource to achieve net zero urban water in water stressed cities
	Crosson, Courtney; Tong, Daoqin; Zhang, Yinan; Zhong, Qing
通讯作者	Crosson, C (corresponding author), Univ Arizona, Coll Architecture Planning & Landscape Architectu, 1040 N Olive Rd, Tucson, AZ 85719 USA.
来源期刊	RESOURCES CONSERVATION AND RECYCLING
ISSN	0921-3449
EISSN	1879-0658
出版年	2021
卷号	164
英文摘要	Globally, cities are facing increased water stress with an imbalance between available water resources and projected urban water demands. Water experts have pointed to rainwater harvesting (RWH) as one answer; however, the capacity of such a solution to address deficits on an urban scale is largely untested. This study proposes a model to evaluate the necessary network of RWH systems to achieve net zero urban water, meaning a sustainable local supply capable of meeting long-term demand. This approach was applied to a water stressed city, Tucson, Arizona, in the semi-arid Southwestern United States. A daily water balance model optimized for the smallest required storage volumes to reach net zero urban water at a resolution of ten years of consecutive daily rainfall. The potential passive and active RWH network was modelled under four investment scenarios using remote sensing, localized daily rainfall, and municipal water meter data. In the most financially and physically plausible scenario, rainwater replaced imported water and a 30% demand conservation was assumed. The median required storage was 28.2 cubic-meters per 100 square-meters of roof area, or an estimated $10,000 investment. Comparatively, the median RWH household storage installation in Tucson is 5.3 cubic-meters (1395 gallons). In addition to widespread investment in large household storage, this result would require paradigm shifts across built, economic, and social systems to fully integrate the decentralized network across the urban fabric. This study shows that net zero urban water can be achieved with RWH under multiyear drought conditions with large storage volumes.
英文关键词	Rainwater harvesting Net zero urban water Urban water stress Decentralized infrastructure Urban resilience Urban adaptation
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000592565500076
WOS关键词	HARVESTING SYSTEMS ; ECONOMIC-ANALYSIS ; DESIGN ; MANAGEMENT ; SELECTION ; AREAS
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS研究方向	Engineering ; Environmental Sciences & Ecology
来源机构	University of Arizona ; Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348150
作者单位	[Crosson, Courtney] Univ Arizona, Coll Architecture Planning & Landscape Architectu, 1040 N Olive Rd, Tucson, AZ 85719 USA; [Tong, Daoqin] Arizona State Univ, Sch Geog Sci & Urban Planning, Tempe, AZ USA; [Zhang, Yinan] Univ Arizona, Sch Geog Dev & Environm, Tucson, AZ USA; [Zhong, Qing] Arizona State Univ, Sch Polit & Global Studies, Tempe, AZ USA
推荐引用方式 GB/T 7714	Crosson, Courtney,Tong, Daoqin,Zhang, Yinan,et al. Rainwater as a renewable resource to achieve net zero urban water in water stressed cities[J]. University of Arizona, Arizona State University,2021,164.
APA	Crosson, Courtney,Tong, Daoqin,Zhang, Yinan,&Zhong, Qing.(2021).Rainwater as a renewable resource to achieve net zero urban water in water stressed cities.RESOURCES CONSERVATION AND RECYCLING,164.
MLA	Crosson, Courtney,et al."Rainwater as a renewable resource to achieve net zero urban water in water stressed cities".RESOURCES CONSERVATION AND RECYCLING 164(2021).