Applied Mechanics and Materials Vol. 700

Abstract: This paper estimates the changes of industrial embodied energy consumption in China between 1997 and 2007, and applies a structural decomposition analysis (SDA), based on non-competitive (import) input-output tables, to analyze the sources of change of China’s energy consumption from 1997 to 2007. Results show that China’s energy consumption increased sharply, especially after the accession to WTO. The SDA results indicate that the improvement of energy efficiency during 1997-2007 significantly reduced energy consumption in China while the growth of final demand was the key driver of China’s energy consumption. In addition, distribution of final demand with the declining share of consumption and the increasing share of export push energy consumption upward.

Abstract: The rapid growth of China’s economy consumed a lot of energy, but excessive energy consumption may constraint the sustainable development of China. This paper constructs a two-tier structural decomposition analysis model to decompose the change of energy use during 1987 and 2010 into 11 factors, and analyze the results of sub-periods. The results show that the scale and products’ structure of domestic final demand, the scale of exports, imports substitution, the structure and the input technology of material promoted the energy in the whole period. However, the intensity of energy, the products structure of exports , the structure and technology change of energy input reduced the energy consumption.

Abstract: The extent of land intensive use is directly related to the sustainable use of regional land resources, and it is closely related to regional socio-economic development. The land intensive use evaluation indicator system is built from three aspects of status of land use, land use efficiency, land management performance, and the level of land intensive use of the Langfang national economic and technological development zone is evaluated by multi-index comprehensive method. The evaluation results are deeply analyzed to find the problems of land use. The research results objectively reflected the actual status of land use in development zone, the direction of tapping the potential of land management is indicated, and the basis is provided for the government to audit upgrading and expansion areas of the development zone.