JOURNAL OF NATURAL RESOURCES ›› 2019, Vol. 34 ›› Issue (5): 945-956.doi: 10.31497/zrzyxb.20190504

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Water footprint and space transfer at provincial level of China based on MRIO model

Cai-zhi SUN1(), Shu-bin LIU2   

  1. 1. Center for Studies of Marine Economy and Sustainable Development, Liaoning Normal University, Dalian 116029, Liaoning, China
    2. Urban Planning and Environmental Science, Liaoning Normal University, Dalian 116029, Liaoning, China
  • Received:2018-09-04 Revised:2019-01-10 Online:2019-05-28 Published:2019-05-28

Abstract:

Based on the input-output table of 31 provinces (autonomous regions and municipalities) in China in 2012, the water footprint and water footprint trade structure of the provinces in China were calculated and analyzed by establishing the I-O model of water resources expansion, and the spatial transfer pattern of the provinces was analyzed based on the interprovincial trade. The results showed that: (1) In 2012, the total amount of internal water footprint, the net input water footprint of international trade, and the net export water footprint of interprovincial trade were 4819.3×108 m3, 261.3×108 m3, and 801.6×108 m3, respectively. Inter-provincial trade played a leading role in the national water footprint trade. (2) In terms of the provincial-level region, 19 were net output provinces, such as Hebei and Heilongjiang, 12 were net input provinces, such as Beijing and Tianjin. In the view of the industry, the net output water footprint of the primary industry, the net input of the secondary industry, and the net output of the tertiary industry were 757.9×108 m3, 222.2×108 m3, and 4.6×108 m3, respectively. (3) The inter-provincial water footprint spatial transfer has the inconsistency between the source and the destination provinces, the geographical proximity of provincial transfer, and the phenomenon was obvious in resources-rich provinces and economically developed areas.

Key words: MRIO model, water footprint, space transfer, China