基于"等级-网络"双维度下的福建省县级单元对外服务能力空间格局演化OA北大核心CSTPCD

Based on the urban flow intensity model and an improved gravity model,this paper analyzes the evolution of the spatial pattern of external service capacity of county-level units in Fu-jian Province from the spatial relationship of external service capacity under the dual dimensions of"hierarchy-network".The results show that:(1)While the external service capacity of the second-ary and tertiary industries continues to increase,industry and commerce have become the"twin stars"of functional departments.(2)The overall spatial pattern of external service capacity exhib-its a characteristic where coastal areas surpass inland areas,with the division of labor and the devel-opment trends of each function becoming gradually clearer.(3)The network pattern of external service capacity in the secondary and tertiary industries outlines a radial network dominated by high-level coastal links extending inland;the industrial sector forms an inverted"T"-shaped and"dia-mond-shaped"backbone network in western Fujian and along the coast,respectively.