要素协同视角的都市圈空间范围划定及圈层分析OA

Metropolitan area have become crucial regional units for participating in international competition and leading national development in the new era,playing a key role in regional coordinated development.This paper deconstructs the impact mechanisms of multidimensional elements on the formation of spatial organization and hierarchical structure,starting from the concept and development of metropolitan area.A comprehensive,scientifically reasonable analytical framework for defining the spatial boundaries of urban agglomerations is established,incorporating three major dimensions:material environment,socio-economic activities,and institutional culture.Based on this framework,the paper analyzes the collaborative development characteristics of multidimensional elements in the Nanjing metropolitan area,revealing its spatial boundaries and hierarchical structural features.The results show that the Nanjing metropolitan area presents a distinct three-tiered structure of core,tight-knit,and influence zones,with spatial heterogeneity highlighted,while urban integration and overall development still need to be enhanced.