中文摘要：

紧凑城市作为一种全新发展理念和模式已经得到学术界和政府的高度认可,必将引领中国城市未来发展的方向。在对紧凑城市研究动态和发展内涵分析的基础上,通过构建科学指标体系,对中国16个特大城市的紧凑度进行测度并进行比较分析,之后对城市紧凑度的经济效应、产出效率及环境效应进行研究。形成三个结论：第一,功能紧凑是紧凑城市建设的核心内容。第二,由于在城市规划和发展理念、基础设施与公共服务设施、社会经济发展水平、生态基底等方面存在差距,当前中国特大城市紧凑度发展存在较大水平差异。第三,从城市紧凑度多重效应计算结果看,城市紧凑度越高,越有利于经济发展、有利于地均有效产出、有利于生态环境保护。

英文摘要：

As a new idea and concept,compact city has been highly recognized by the academics and government and will lead the future development direction of Chinese cities. On the basis of analysis to research tendency and connotation of compact city,the paper measures the compactness of the 16 mega-cities in China by constructing an index system,and then has a research on economic effect,output efficiency and environmental effect to urban compactness. Three conclusions are formed： First,the function compactness is the core for compact city construction. Second,because there is a gap in urban planning and development,infrastructure and public service facilities,the level of social and economic development,ecological base,so there are great difference in the level of compactness among mega-cities. Third,from the perspective of multiple effects,the higher compactness of the city is,the more favorable to economic development,to the effective output,to the protection of ecological environment.