GEOGRAPHICAL RESEARCH ›› 2015, Vol. 34 ›› Issue (1): 109-121.doi: 10.11821/dlyj201501010

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Study on the regional differences and industry differences of energy-saving potentiality in China's manufacturing industry

Lafang WANG1(), Wenjing DUAN1, Mingyong LAI1,2, Lijie LIU1   

  1. 1. School of Economics and Trade, Hunan University, Changsha 410079, China
    2. Changsha University of Science & Technology, Changsha 410015, China
  • Received:2014-06-02 Revised:2014-11-11 Online:2015-01-10 Published:2015-03-17


The developmental characteristics of excessive dependence on resources and energy consumption make China's manufacturing industry have great energy-saving potentiality and space. Through calculating the energy intensity and energy-saving potentiality of manufacturing industry in various provinces and cities in China, this paper analyses the regional differences and industrial differences of the energy-saving potentiality of manufacturing. The result shows that: (1) There exist obvious differences of manufacturing energy intensity in eastern, central and western China, and the manufacturing energy intensity of the eastern region is much lower than that of the central and western regions. But regional energy intensity gaps have been gradually narrowing in recent years, at the same time, the gaps between different provinces and cities in an inland region have also been narrowed. (2) There are 17 provinces' energy-saving potentialities higher than the national average energy-saving potentiality, and mainly concentrated in central and western China, in these regions, the average energy-saving potentiality of each province is over 70%, which shows that the manufacturing energy-saving space is very large in most parts of China. (3) Most industries with high energy-saving potentiality have higher requirements for energy utilization efficiency and stronger industrial forward and backward linkage effects. (4) Although there is large difference in the energy-saving potentiality of sub-industries of manufacturing in different provinces and cities, the rankings of the energy-saving potentiality of petroleum processing and coking industry, electronic and communication equipment manufacturing industry, special equipment manufacturing industry and chemical fiber manufacturing industry in various regions are all in front. (5) When making energy-saving policies and measures, the government should not only take concrete measures according to the differences of resources, energy endowment and economic development level of various provinces and cities, but also take full account of the differences between industries.

Key words: manufacturing industry, energy intensity, energy-saving potentiality, regional differences, industrial differences, China