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	Study on the water footprint and external water dependency of Beijing
	Sun Y. Z.; Shen, L.; Lu, C. X.
	2016
关键词	Beijing external water dependency virtual water trade water footprint water scarcity consumption china resources products impact trade flows
英文摘要	Beijing has experienced rapid economic development and population growth during recent decades, aggravating water scarcity. In order to investigate the water consumption of Beijing, this paper quantitatively evaluates the water footprint (WF), the intensity of the water footprint (Iwf) and the external water dependency (WD) based on the top-down and bottom-up methods. We obtain the following major conclusions: (1) the total WF in Beijing is 353 10(8) m(3) in 2012; per capita WF is 1,704 m(3), which is 8 times that of the entity water of Beijing; (2) the Iwf in Beijing rises after 2007, indicating that there remains a great potential for improving water-use efficiency; (3) through virtual water trade, the external WF takes over 70% of the total WF annually; therefore, Beijing has faced more severe water resource stress recently; (4) through the spatial analysis of external WD, we identify that in each side of the Hu line, distribution of distance of the flow of imported virtual water shows homogeneity, and that WD in the southeast region is high and in the northwest is weak.
出处	Water Science and Technology-Water Supply
卷	16
期	4
页	1077-1085
收录类别	SCI
语种	英语
ISSN号	1606-9749
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/43307]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Sun Y. Z.,Shen, L.,Lu, C. X.. Study on the water footprint and external water dependency of Beijing. 2016.

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