Global socio-hydrology: An overview of virtual water use by the world economy from source of exploitation to sink of final consumption

doi:10.1016/j.jhydrol.2019.03.080

	Global socio-hydrology: An overview of virtual water use by the world economy from source of exploitation to sink of final consumption
	Wu, X. D.1,2; Guo, J. L.2; Li, C. H.1; Shao, L.3; Han, M. Y.4; Chen, G. Q.2
刊名	JOURNAL OF HYDROLOGY
	2019-06-01
卷号	573 页码:794-810
关键词	Global socio-hydrology World economy Virtual water Global supply chain Trade imbalance
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2019.03.080
通讯作者	Chen, G. Q.(gqchen@pku.edu.cn)
英文摘要	To reflect a key aspect of global socio-hydrology, this paper explores global virtual water use from source of exploitation to sink of final consumption via interregional trades within the world economy as reflected by world input-output database for 2014. An embodiment accounting model is developed, which takes full account of virtual water feedbacks related to primary inputs. Global total trade volume of virtual water is estimated to be in magnitude around 30% of the global direct freshwater withdrawal. Moreover, it is revealed that global virtual water transfer in intermediate trade is in magnitude around 1.4 times that in final trade. In intermediate trade of virtual water, China, Japan and the United Kingdom turn out to be the three leading net importers, while India, Russia and the United States are revealed as the leading net exporters. In final trade of virtual water, the United States, Japan and Russia are the major net importers, in contrast to China, India and Mexico as the leading net exporters. Trade connections and imbalances of major economies in terms of virtual water are quantified and analyzed. Two new indicators in terms of water self-sufficiency rate by source and that by sink are devised. It is found that around 40% of the use of China's freshwater withdrawal finally sinks into foreign economies while only 20% of China's virtual water use originates from other regions. With regard to Germany, Canada and France, they behave like active pumps driving vast virtual water inflows and outflows, demonstrating their high involvement in the global supply chain in terms of virtual water. With the increasingly frequent virtual water transfer within the world economy, nations and regions ought to assess their behaviors in intermediate and final trades of virtual water for sustainable use of freshwater resources.
资助项目	China Postdoctoral Science Foundation[2018M640001] ; National Natural Science Foundation of China[51879002] ; National Natural Science Foundation of China[51579004]
WOS关键词	INPUT-OUTPUT-ANALYSIS ; GREENHOUSE-GAS EMISSIONS ; OPEN-CHANNEL FLOW ; ARABLE LAND-USE ; SUPPLY CHAIN ; ENERGY-COST ; ENVIRONMENTAL DISPERSION ; INTERNATIONAL-TRADE ; ECOLOGICAL NETWORK ; EMBODIED ENERGY
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000474327800063
资助机构	China Postdoctoral Science Foundation ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/58445]
专题	中国科学院地理科学与资源研究所
通讯作者	Chen, G. Q.
作者单位	1.Peking Univ, Sch Econ, Beijing 100871, Peoples R China 2.Peking Univ, Lab Syst Ecol & Sustainabil Sci, Coll Engn, Beijing 100871, Peoples R China 3.China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wu, X. D.,Guo, J. L.,Li, C. H.,et al. Global socio-hydrology: An overview of virtual water use by the world economy from source of exploitation to sink of final consumption[J]. JOURNAL OF HYDROLOGY,2019,573:794-810.
APA	Wu, X. D.,Guo, J. L.,Li, C. H.,Shao, L.,Han, M. Y.,&Chen, G. Q..(2019).Global socio-hydrology: An overview of virtual water use by the world economy from source of exploitation to sink of final consumption.JOURNAL OF HYDROLOGY,573,794-810.
MLA	Wu, X. D.,et al."Global socio-hydrology: An overview of virtual water use by the world economy from source of exploitation to sink of final consumption".JOURNAL OF HYDROLOGY 573(2019):794-810.