气候变化领域集成服务门户(CCPortal): Water on an urban planet: Urbanization and the reach of urban water infrastructure

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DOI	10.1016/j.gloenvcha.2014.04.022
	Water on an urban planet: Urbanization and the reach of urban water infrastructure
	McDonald R.I.; Weber K.; Padowski J.; Flörke M.; Schneider C.; Green P.A.; Gleeson T.; Eckman S.; Lehner B.; Balk D.; Boucher T.; Grill G.; Montgomery M.
发表日期	2014
ISSN	0959-3780
卷号	27 期号:1
英文摘要	Urban growth is increasing the demand for freshwater resources, yet surprisingly the water sources of the world's large cities have never been globally assessed, hampering efforts to assess the distribution and causes of urban water stress. We conducted the first global survey of the large cities' water sources, and show that previous global hydrologic models that ignored urban water infrastructure significantly overestimated urban water stress. Large cities obtain 78±3% of their water from surface sources, some of which are far away: cumulatively, large cities moved 504 billion liters a day (184km3yr-1) a distance of 27,000±3800km, and the upstream contributing area of urban water sources is 41% of the global land surface. Despite this infrastructure, one in four cities, containing $4.8±0.7 trillion in economic activity, remain water stressed due to geographical and financial limitations. The strategic management of these cities' water sources is therefore important for the future of the global economy. © 2014 The Authors.
英文关键词	Cities; Cross-basin transfer; Desalination; Groundwater; Surface water; Water security
学科领域	desalination; global economy; hydrological modeling; land surface; surface water; urban growth; water stress
语种	英语
scopus关键词	desalination; global economy; hydrological modeling; land surface; surface water; urban growth; water stress
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/117758
作者单位	Worldwide Office, The Nature Conservancy, Washington, DC 22203, United States; Department of Environmental Earth System Science and the Woods Institute for the Environment, Stanford University, Stanford, CA 94305, United States; Center for Environmental Systems Research, University of Kassel, 34117 Kassel, Germany; CUNY Environmental CrossRoads Initiative, The City University of New York, New York, NY 10031, United States; Department of Civil Engineering, McGill University, Montréal, QC H3A 0C3, Canada; Institute for Employment Research, 90478 Nuremberg, Germany; Department of Geography, McGill University, Montréal, QC H3A 0B9, Canada; School of Public Affairs, Baruch College, New York, NY 10010, United States; Department of Economics, Stony Brook University, Stony Brook, NY 11794, United States
推荐引用方式 GB/T 7714	McDonald R.I.,Weber K.,Padowski J.,et al. Water on an urban planet: Urbanization and the reach of urban water infrastructure[J],2014,27(1).
APA	McDonald R.I..,Weber K..,Padowski J..,Flörke M..,Schneider C..,...&Montgomery M..(2014).Water on an urban planet: Urbanization and the reach of urban water infrastructure.Global Environmental Change,27(1).
MLA	McDonald R.I.,et al."Water on an urban planet: Urbanization and the reach of urban water infrastructure".Global Environmental Change 27.1(2014).