中文摘要：

根据南京市1991～2003年经济与环境数据，分析经济发展与环境污染的相互关系，建立了南京市经济增长与环境污染水平的计量模型，进而评价了南京市的环境保护政策。研究表明：作为一个重化工业城市，南京市自20世纪90年代以来，在经济高速发展的情况下，其环境恶化程度逐步得到遏制，部分环境指标与人均GDP演替轨迹呈现显著的环境库兹涅茨曲线特征。这主要归功于南京市政府近年来有效的环境政策和巨额的环境投资。

英文摘要：

Based on the economic and environmental data in Nanjing City for the period from 1991 to 2003, a model was set up to analyze the relationship between economic growth and environmental changes. This paper thus elevated the environmental policies of Nanjing City. It is revealed that Naniing, as a heavily-industrilized city, has held back the environmental degradation with the economic growth, and Environmental Kuznets Curve （EKC） can well characterize the relationships between some environmental indicators and GDP per capita, due to the efficient environmental policy and the vast environmental investment in Nanjing City.