Research on Characteristics of Provincial CO_2 Emissions from 2005 to 2009 in China

Based on IPCC's reference approach for carbon dioxide assessment,the paper calculated and compared the indicators including total CO2 emissions,per capita emissions,emissions intensity and integrated energy emission factors from 2005 to 2009 for 30 provinces in China.On the basis of relationships between CO2 emission intensity and per capita GDP,the proportion of secondary industry and the structure of energy utilization,30 provinces have been classified into several different emission groups.It has been found that significant differences in key indicators exist among provinces,and the major factors controlling provincial carbon emissions are not completely the same.Therefore,the level of economic development,industrial structure,the structure of energy utilization and other factors should be fully considered when developing policies,approaches and measures for provincial emission reduction.