中文摘要：

城市群已成为全球竞争与国际分工的全新地域单元,评估和判断城市群生态环境质量及其与城市化发展的时空分异特征对实现区域可持续发展具有重要的现实意义。基于生态环境状况指数计算方法,对＂十一五＂期间（2005~2010年）长三角地区生态环境质量的基本特征和时空格局进行定量分析。并以其25个城市为研究单元,对＂人口—经济＂视角下的城市化水平与区域生态环境的发展关系和区域分异进行探讨。结果显示：＂十一五＂期间长三角地区整体生态环境质量均属＂良＂,空间分布大致以上海—苏锡常—南京为界,呈南高北低中间差的特征。2010年较2005年生态环境状况稳中有好,浙江省和沪宁沿线的大部分城市生态环境质量有所改善,政策调控下的污染物排放减少是其好转的主要原因。＂十一五＂期间长三角地区各城市生态环境与城市化发展呈现不同的发展轨迹,发展类型以可持续型为主,而以苏北五市为代表的少数城市则表现为生态脆弱型。

英文摘要：

The enhancement of ability and intensity of social and economic activities has made particular ecosystem damages extend to regional eco-environmental problems.Facing a series of eco-environmental problems,social development under rapid urbanization is no longer economic growth,but the coordinated development of population,economy and eco-environment.Especially when urban agglomeration becomes the new units for global competition and international division of labor,evaluating and identifying its developmental pattern between ecoenvironment and urbanization has practical significance for achieving sustainable development.The Yangtze River Delta Urban Agglomeration（YRDUA）has paid a great price for its burgeoning urbanization and industrialization,which gradually became one of the new ecologically vulnerable zones in China.With reference to the Technical Criterion for Eco-environmental Status Evaluation（HJ/T192-2006）published by the Ministry of Environmental Protection of China in 2006,we selected Biologic Abundance Index（BAI）,Vegetation Cover Index（VCI）,Waternet Density Index（WDI）,Land Deterioration Index（LDI）and Pollution Load Index（PLI）as the Ecological Index（EI）to reflect the comprehensive eco-environmental quality（EEQ）.The basic characteristics and spatiotemporal pattern of EEQ in the YRDUA during the Eleventh Five-Year Plan Period（2005-2010）was analyzed.Furthermore,we took the 25 cities in the YRDUA as analytic units and discussed its status and spatial differentiation of developmental patterns between eco-environment and urbanization under the perspective of＂population-economy＂.The results showed that：（1）the averaged EI in the YRDUA was 56.0in 2005 and 57.3in 2010,which was higher than the national average and were both belonged to the ＂moderately high＂level.Concerning to the spatial distribution,the EEQ demonstrated pronounced variability,with the Shanghai-SuzhouWuxi-Changzhou-Nanjing belt as a demarcation belt.The EEQ of Lishui in Zhejiang Province ranked