关键词: 能源消费, CO2排放强度；结构因素分解

Abstract: Carbon Dioxide emissions and emission reduction problem have been a global focus. China, the largest country in carbon dioxide emissions, is especially worthy studying. Input-output model and structure decomposition analysis methods have been used in this paper for studying China’s CO2 emissions intensity from 1997 to 2007.Compared with existing studies, we measured both direct emissions and indirect emissions and considered difference of carbon emission factors of all kinds of energy, leading to more accurate and rational conclusions. The conclusion indicates that the transformation of the production mode is the main reason of the reduction of CO2 emissions intensity, especially the energy intensity, but the demand mode play a relatively weak role. Finally, we suggest not only to focus on emission reduction in the areas of production, but also to cultivate clean demand mode.

Key words: Energy Consumption, CO2 Emissions Intensity；Structure Decomposition Analysis