多城市空间组合体相关概念的界定与比较分析

The Definitions and Comparative Analysis of the Relative Concepts of the Multi-city Spatial Complex

鉴于当前学术界对多城市空间组合体若干概念的分歧,文章对城市组群、（大）都市区、（大）都市圈、城镇密集区、城市群、都市连绵区、（大）都市带的概念进行界定,认为它们分别处于城市化的不同发展阶段。并对多城市空间组合体各相关概念间存在横向和纵向联系与横向联系链和纵向联系链上的相关概念进行了异同分析。

In view of the controversies over some concepts related to the multi-city spatial complex in present academic field,the paper now gives definitions to city groups,（large） metropolitan districts,（large） metropolitan circles,city-and-town concentrated areas,urban agglomeration and megalopolis as well as（large） metropolitan zones.It regards them as different forms of urbanization in its development phases and finds the inner horizontal ties and vertical ties between these relevant concepts of multi-city spatial complex.Finally the paper draws a comparative analysis over the relative concepts in horizontal and vertical ties.