经济联系视角下泛长三角网络结构研究

基于经济联系视角,通过运用空间相互作用模型、社会网络分析方法(SNA)与GIS空间分析,对泛长三角区域网络结构进行了实证研究。研究表明:泛长三角区域空间网络整体呈现以上海为核心,以南京、杭州与合肥为多中心的"一级多核"空间格局;泛长三角区域空间网络密度较低,区域内城市间联系较为松散,城市职能分工不明确;通过多重中心性分析,上海、南京、杭州、合肥等市对周边城市的极化和扩散效应突出,但次级区域尚未完全融入;泛长三角区域可划分4个凝聚子群,且凝聚子群内部小团体现象明显,子群内城市间经济联系较强。与此同时,泛长三角区域一体化趋势加快,网络化特征初现端倪。

Research on spatial network structure of Pan Yangtze River Delta

Based on the perspective of economic connection, the Spatial Interaction Model, Social Network Analysis (SNA) and GIS spatial analysis are used to study the regional network structure characteristics of Pan Yangtze River Delta.Research shows: Overall, the Pan Yangtze River Delta regional spatial network presents a spatial structure of "A core and Multi-center" with Shanghai as the core, with Nanjing, Hangzhou and Hefei as the multi-center.In the Pan Yangtze River Delta, the density of the regional spatial network is low, the inter-city links are more weak and the urban functions are not clear.The results of Multiple Central Analysis show that the polarization and diffusion effects of Shanghai, Nanjing, Hangzhou and Hefei are significant, but the secondary area is not fully integrated.The Pan Yangtze region can be divided into four cohesive subgroups, and the small groups within the subgroups are obvious, and the economic link between the cities is stronger in subgroups.At the same time, the Pan Yangtze River Delta regional integration trend is accelerated, the network characteristics began to appear.