JOURNAL OF NATURAL RESOURCES ›› 2011, Vol. 26 ›› Issue (6): 1040-1051.doi: 10.11849/zrzyxb.2011.06.015

• Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS • Previous Articles     Next Articles

Dynamic Analysis on the Industrial Water Withdrawal and Water Saving of Beijing in the Past 20 Years

JIANG Lei1,2, CHEN Yuan-sheng1, LI Lu1,2   

  1. 1. Institute of Geographic Science and Natural Resources Research, CAS, Beijing 100101, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-11-12 Revised:2011-05-17 Online:2011-06-20 Published:2011-06-20

Abstract: This paper gives an account of the dynamic changing process of the water withdrawal structure and the industrial water-use efficiency in Beijing during the years from 1988 to 2008. In this period, the water withdrawal structure of the three industries of Beijing changed from "1-2-3" type to "1-3-2" type in 2005, and is likely to change to "3-1-2" type in the next few years. Based on this, the macroscopic amount of water savings of three industries are calculated, which shows that the saved amount of industrial water withdrawal of Beijing caused by improving water-use efficiency of the tertiary industry amounted to 1.14 billion m3, which accounting for 38% of the total saved amount of industrial water withdrawal caused by improving water efficiency of three industries. And a multivariate regression model of the saved amount of water withdrawal caused by industrial structure upgrading is established, which explains that every 1% increase in the added value of the tertiary industry proportion, can save 0.344 billion m3 water. An empirical power exponent model of Beijing water withdrawal per ten thousand yuan GDP of industry-real GDP per capita, which shows that the period when the added value proportion of the tertiary industry increased from 40% to 70%, is the key period to vastly improve the water-use efficiency and the negative growth of water withdrawal of industries. The result reveals that the saved amount of industrial water withdrawal has been effectively elevated through actively developing tertiary industry and improving water-use efficiency. The author suggests that more attention should be paid to water-saving management, and the water-saving potential of the tertiary industry should be fully tapped.

Key words: Beijing, tertiary industry, industrial structure, water withdrawal of industry

CLC Number: 

  • F205