以环境库茨涅茨曲线（ EKC曲线）为理论基础，选取2001—2013年辽宁沿海经济带无机氮浓度、石油类浓度、磷酸盐浓度、生活污水排放量和工业废水排放量作为海洋环境指标，采用人均实际GDP作为经济发展水平指标，通过拟合方程建立最优模型，综合分析经济指标与海洋环境指标之间的关系。辽宁沿海经济带综合EKC曲线处于“冲突”阶段，大连和锦州综合EKC曲线呈正“U”型，而盘锦、丹东、营口和葫芦岛呈倒“U”型。通过产业结构变化模型、变异系数及其单尾概率的方法，对综合EKC曲线特征的成因进行剖析。除盘锦外，辽宁沿海经济带其他各子区以工业发展为主，产业结构单一，资源过度消耗，污染物过度排放，造成海洋环境恶化。将辽宁沿海经济与海洋环境的空间轨迹进行对比分析，除葫芦岛、盘锦外，其他各子区海洋环境未得到良好改善。%The cooperation of economic development and marine environment is an important approach to pro -mote the sustainable development of marine and inland economy .According to the historical statistics data and based on the environmental Kuznets curve ( EKC) theory,the paper carried out an empirical study of the relationship between socio-economic development and marine environmental conditions in the Liaoning Coastal Economic Belt . The results showed that there are many marine pollution factors closely related to regional GDP ( Gross Domestic Product), in which Jinzhou and Dalian ’ s integrated EKC curves show U-type, while Panjin, Dandong, Yingkou and Huludao show inverted U-type .According to the actual situation of Liaoning Coastal Economic Belt , industrial structures singleness is the chief factor which restricts the type of EKC curves , excessive resource consumption and pollutant emissions cause the deterioration of the marine environment .The second factor is the failure of marine en-vironment regulation .The marine environmental policy and regulation have not yet received good results in the areas of the Liaoning Coastal Economic Belt except for Huludao and Panjin .
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