我国碳生产率区域差异性研究

Research on the Regional Variation of Carbon Productivity in China

本文利用聚类分析、泰尔指数、脱钩指数等方法分析了区域碳生产率的差异性及影响因素,提出了减排对策。主要结论是:多数省份碳生产率呈逐年上升趋势,东、中、西部碳生产率呈现递减格局,但增长速度并未与之一致,中部增长最快,西部最慢;总的碳生产率泰尔指数表明碳生产率存在明显区域差异;三大区域泰尔指数表明:东部内部差异在不断缩小,中部内部差异先大后小,而西部内部差异却呈现扩大趋势;碳生产率总体差异主要来自于地区内差异,地区内差异又主要来自于东部地区内差异,但地区间差异贡献率近年来呈上升趋势;不同的经济发展阶段,脱钩指数呈现不同的状态,碳生产率也表现不同的变化特征,即使在相同脱钩状态下,东、中、西部碳生产率存在差异,东部碳生产率高于中西部。

How to keep our economic growth, in the meanwhile, to inhibit the growth of carbon dioxide emissions, the key is to improve carbon productivity, and this depends on the province abatement action. Therefore, this paper calculated regional carbon productivity, and analyzed the regional difference using the cluster analysis, Theil index and decoupling index, and put forward countermeasures of the implementation of carbon emissions reduction targets. Through the analysis, there are main conclusions as follows： the carbon productivity of majority provinces has a increasing trend year by year, the east, middle and west three regions present successively degression pattern, but the middle has a fastest growth rate, the east follows, the west is the slowest. The gross carbon productivity Theil index displays obviously regional diversity. Theil index of three regions show： the eastern internal difference is shrinking gradually, the middle is big first and then is small, but the west presents the expanding tendency. Regional carbon productivity general distribution difference is mainly caused by the district difference which is mainly from the eastern, the contribution between regions shows ascendant trend in recent years. Decoupling index has different state during different economic development stage, carbon productivity also represents different characteristics, even in the same decoupling condition, carbon productivity of three regions exist differences, eastern carbon productivity is bigger than the midwest.