Land Carrying Carbon Emissions and the Analysis of Its Decoupling Effects in Jiangsu Province
江苏省土地承载碳排放及其脱钩效应分析

With the rapid socio-economic development,energy consumption and environmental problems have become increasingly serious,so reducing carbon emissions while maintaining economic growth is the inevitable choice for Jiangsu province to face the external pressure of emission reduction as well as the urgent need to achieve its sustainable development.Therefore,from the perspective of industry energy consumption carrying by land,this article has analyzed the changes of land carrying carbon emissions in Jiangsu province from 2002 to 2008.On this basis,the study has explored the main factors that affect the changes of land carrying carbon emissions with Logarithmic Mean Divisia Index(LMDI)method,and further established the"decoupling" effort indicators based on factor decomposition results to assess the actual effects of governments’ efforts of reducing carbon emissions.The goal is to find the effective ways and measures to achieve a win-win economic growth and carbon emission reduction.The results show that:1)Land carrying carbon emissions of Jiangsu province have maintained an increasing trend during 2002 and 2008,with carbon emissions carrying by construction land accounting for more than 95%of the total;2)The order of positive effect factors which contribute to land carrying carbon emissions ’increase is as follows:land output>industrial structure>carbon emission intensity of energy> land scale>energy structure;the energy intensity’s role in inhibiting the increase of carbon emissions is limited,so there is a long way to go to achieve the target of carbon emissions reduction for Jiangsu province;3)The"decoupling"effect that the governments try to achieve through carbon emissions reduction is not satisfactory during the study period,but the decoupling degree between economic growth and land carrying carbon emissions has been improved year by year due to reduction in energy intensity and gradual transformation of economic development models.Finally,some shortages of this research as well as suggestions for further studies on more detailed relationships between land use structures and carbon emissions have been put forward in this paper.