AN INPUT–OUTPUT ANALYSIS OF TRENDS IN VIRTUAL WATER TRADE AND THE IMPACT ON WATER RESOURCES AND USES IN CHINA

This study investigates the impacts of China's international trade on its water resources and uses between 2002 and 2007. The results show a significant increase in water use efficiency in most sectors, especially the manufacturing sectors. However, the total net virtual water exported increased by about 75%, from 39.0 × 109 m3 to 68.2 × 109 m3. The ratio of net virtual water exports to the total water resources of the country increased from 1.8% to 3.1%. In water-scarce North China, the ratio increased from 3.6% to 5.1%, which indicates a growing water resources pressure. The share of the net virtual water exports in the total water use in China increased from 7% to 12%. The results suggest that China's economic gains from intensifying international trade came with high costs regarding its water resources.

[1]  Minjun Shi,et al.  Analyses of water footprint of Beijing in an interregional input–output framework , 2011 .

[2]  A. Hoekstra,et al.  Water footprints of nations: Water use by people as a function of their consumption pattern , 2006 .

[3]  Klaus Hubacek,et al.  Assessment of regional trade and virtual water flows in China , 2007 .

[4]  P. Q. Hung,et al.  Globalisation of water resources : international virtual water flows in relation to crop trade , 2005 .

[5]  Karim C. Abbaspour,et al.  Virtual water trade: an assessment of water use efficiency in the international food trade , 2006 .

[6]  Hynd Bouhia Water in the Macro Economy: Integrating Economics and Engineering into an Analytical Model , 2001 .

[7]  王勇 Analysis of water consumption using a regional input–output model, model development and application to Zhangye City, Northwestern China , 2009 .

[8]  Arjen Y. Hoekstra,et al.  The global component of freshwater demand and supply: an assessment of virtual water flows between nations as a result of trade in agricultural and industrial products , 2008 .

[9]  Klaus Hubacek,et al.  Economic and Societal Changes in China and their Effects onWater Use A Scenario Analysis , 2005 .

[10]  Michael Webber,et al.  Rural industries and water pollution in China. , 2008, Journal of Environmental Management.

[11]  Bin Chen,et al.  National water footprint in an input–output framework—A case study of China 2002 , 2009 .

[12]  S. Pfister,et al.  Environmental impacts of water use in global crop production: hotspots and trade-offs with land use. , 2011, Environmental science & technology.

[13]  Alexander J. B. Zehnder,et al.  Water Scarcity and Food Import: A Case Study for Southern Mediterranean Countries , 2002 .

[14]  中華人民共和国国家統計局 China statistical yearbook , 1988 .

[15]  Erik Dietzenbacher,et al.  Analysing Andalusian Virtual Water Trade in an Input–Output Framework , 2007 .

[16]  Jing Ma,et al.  Virtual versus real water transfers within China , 2006, Philosophical Transactions of the Royal Society B: Biological Sciences.

[17]  Alexander J. B. Zehnder,et al.  “Virtual water”: An unfolding concept in integrated water resources management , 2007 .

[18]  Hongrui Wang,et al.  Sustainable Use of Water Resources in Agriculture in Beijing: Problems and Countermeasures , 2005 .

[19]  Yunchen Wang,et al.  Analysis of water consumption using a regional input–output model: Model development and application to Zhangye City, Northwestern China , 2009 .

[20]  J. A. Allan,et al.  Virtual Water: A Strategic Resource Global Solutions to Regional Deficits , 1998 .

[21]  Bin Chen,et al.  Applying the input-output method to account for water footprint and virtual water trade in the Haihe River basin in China. , 2010, Environmental science & technology.

[22]  Manfred Lenzen,et al.  A Generalized Input-Output Multiplier Calculus for Australia , 2001 .

[23]  Manfred Lenzen,et al.  Understanding virtual water flows: A multiregion input‐output case study of Victoria , 2009 .

[24]  Yan Wang,et al.  An input–output analysis of virtual water uses of the three economic sectors in Beijing , 2009 .

[25]  A. Hoekstra,et al.  The blue, green and grey water footprint of rice from production and consumption perspectives , 2011 .

[26]  D. Zimmer,et al.  Virtual water in food production and global trade : Review of methodological issues and preliminary results , 2003 .

[27]  J. Rockström,et al.  The New Blue and Green Water Paradigm: Breaking New Ground for Water Resources Planning and Management , 2006 .

[28]  Klaus Hubacek,et al.  Assessing regional and global water footprints for the UK , 2010 .

[29]  A. Hoekstra,et al.  The water footprint of coffee and tea consumption in the Netherlands , 2007 .

[30]  A. Hoekstra,et al.  Globalisation of water resources: Global virtual water flows in relation to international crop trade , 2005 .

[31]  Hubert H. G. Savenije,et al.  Water saving through international trade of agricultural products , 2005 .