中文摘要：

将经济生产过程中的自然资源消耗与环境污染排放视为＂环境压力＂,结合DEA理论与视窗分析法,实证测算2004~2012年长江经济带11个省市的5类生态效率指标值,并以此为基础考虑生态效率的地区差异与变化趋势,采用σ收敛与绝对β收敛两种收敛分析方法检验生态效率的敛散性。结果表明：样本期内长江经济带的生态效率整体水平依然偏低,且出现下降态势,资源节约与污染减排还存在很大的空间;不同省市与地区生态效率的差异特征较为明显;无论是长江经济带整体还是上游、中游与下游三大地区,内部省市生态效率之间的差距都有进一步扩大的趋势。

英文摘要：

Considering the natural resource consumption and pollutant reduction in the production process as environmental pressure,this paper utilizes DEA technique and window analysis to measure five eco-efficiency indicators of Yangtze River Economic Zone’s 11 provinces over the period of 2004-2012,on basis of which eco-efficiency’s regional differences and evolution trends are analyzed,σconvergence and absoluteβconvergence analysis are used for discussing the characteristic of convergence and divergence of eco-efficiency.Empirical analysis shows that the overall Yangtze River Economic Zone’s eco-efficiency is still low and presents a downward trend over the period 2004-2012,regional differences are remarkable and has great potential of resource saving and pollution reduction,and the eco-efficiency gaps among provinces from overall Yangtze River Economic Zone’s and the upper,middle or lower reaches all have the tendency of getting larger in the future.