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中文摘要：
对环境库兹涅茨曲线（EKC）假说进行了扩展，选取1998～2005年中国30个省（市、自治区）的面板数据，构建了6类环境污染指标同城市化水平及控制变量间的计量模型，并运用Eviews软件进行了实证检验。研究结果表明：4类污染物同城市化水平之间存在倒U形曲线关系，另外2类污染物同城市化水平之间存在正U形曲线关系，目前中国大体上已经进入U形曲线的右半段，但由于地区发展差距的存在，各地进入曲线右半段的时间不同；控制变量的加入不仅改变了转折点出现的时间，而且改变了某些污染指标同城市化水平之间的U形曲线关系；贸易开放并不一定造成环境的恶化，“污染天堂”假说在中国不成立；产业结构变动是造成环境污染的重要因素；技术进步引致的单位GDP能耗下降能减轻环境污染压力；快速的经济增长将导致更加严重的环境污染。
英文摘要：
With the extension of the hypothesis of ＂Environmental Kuznets Curve＂, this paper established econometric models through correlating six kinds of pollution indicators with urbanization level and controlled variables. By using panel data from thirty provinces （cities and municipalities） of China from 1998 to 2005,authors conducted empirical study with the help of Eviews software package. Results demonstrated that inverted-U shape relationship was found between four kinds of pollutant indicators and urbanization level,and other two kinds of indicators have U shape relationship with urbanization level. At present, China has moved to the right part of the curves as a whole. Due to the development disparities existing among regions,every province moves to the right part of the curves at different times. With the introduction of controlled variables to the econometric model, the estimated results showed that turning-point of some curves as well as the U curve relationship between some pollutant indicators and urbanization level all changed. Foreign trade does not necessarily result in environmental deterioration, and the so-called pollution haven hypothesis does not exist in China. The change in industrial structure is an important factor causing environmental pollution. The decrease of energy consumption per unit of GDP induced by technological progress can alleviate the pressure of environmental pollution. Faster economic growth will give rise to more severe environmental pollution.
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