With the development of the economy and the improvement of people’s living standards, the demand for water resources is also increasing year by year. From the perspective of per capita water resources, China is one of the 14 countries with the poorest water resources in the world. It is seriously short of water and the distribution of water resources is uneven. Water resources have become an important factor restricting China’s economic development. This paper attempts to provide a new perspective for alleviating China’s water shortage and ensuring China’s water resources security from the perspective of “virtual water trade”. Based on this, this paper firstly introduces the current situation of China’s water resources and the research status of virtual water trade, and then builds a water resource value-based input-output model, and takes the six regions in China’s Pan-Beijing-Tianjin-Hebei region as examples to carry out an empirical analysis. The direct water consumption coefficient, complete water consumption coefficient, pulling coefficient and vir tual water import and export trade volume of 7 economic sectors in 2018 were analyzed, and the virtual water trade situation was analyzed to reveal the virtual water trade pattern. Finally, based on the above research results, some suggestions are put forward to optimize the virtual water trade structure in the Pan-Beijing- Tianjin-Hebei region . The research results show that: the complete water use coefficient of agriculture and water supply industry in the six regions in the Pan-Beijing-Tianjin-Hebei region of China is relatively large, and the direct water use coefficient of agriculture and water supply industry is larger than the indirect water use coefficient; The overall industrial structure o f the Pan-Beijing-Tianjin-Hebei region will aggravate its water resources pressu re; from the perspective of virtual water trade, the Pan-Beijing-Tianji n-Hebei region is a net export area of virtual water.
KeywordsVirtual WaterVirtual Water TradeInput-Output ModelDirect Water Use CoefficientComplete Water Use Coefficient
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