中文摘要：

利用2004-2014年长江经济带11省（直辖市）的COD排放及NH排放数据,采用Dagum基尼系数方法对长江经济带水污染排放的地区差异进行测度及分解,并通过面板数据模型和可行的广义最小二乘估计方法（FGLS）实证检验了水污染排放的影响因素。研究发现：（1）长江经济带水污染排放呈现北多南少,中部多东西部少。（2）地区间差异是长江经济带水污染排放总体差异的主要来源。（3）从地区内差异来看,西部地区水污染排放差异最大,东部地区居中,中部地区差异最小;从地区间差异来看,东部与中部之间水污染排放的差异最小,中部与西部、东部与西部之间的差异较大。（4）长江经济带水污染排放支持“环境库兹涅兹曲线”假说,不支持“污染避难所”假说,产业结构、水资源禀赋、环境规制对长江经济带水污染均存在重要影响。

英文摘要：

Using the COD and NH emission data of nine provinces and two cities in the Yangtze River Economic Belt from 2004 to 2014,this paper measures and decomposes the regional disparity of water pollution emissions with Gini Coefficient Method by Dagum （1997） ,and tests the influencing factors of water pollution with FGLS estimation method. The results show： （ 1 ） Water pollution of the Yangtze River Economic Belt presents that the North is more than the South, and the Central area is more than the East and the West. （2） The difference among regions is the main source of water pollution emissions＂ regional disparity in the Yangtze River Economic Belt. （3） In the case of the divergence within the region, the West＇s difference is the largest, the Central＇s is the smallest, and the East＇s is in the middle ; in the case of the difference between the regions, the difference between the East and the Central is the smallest, the difference between the Central and the West as well as between the East and the West is larger. （4） Water pollution of the Yangtze River Economic Belt supports ＂Environmental Kuznets Curve＂ hypothesis, but doesn＇t support the ＂Pollution Haven＂ hypothesis. The indus- trial structure, water resources endowment and environmental regulation have significant implications on water pollution in the Yangtze River Economic Belt.