东北地区城市网络结构特征

Characteristics of Urban Network Structure in Northeast China

以城市间空间联系值为基础,利用社会网络分析法,对东北地区41个地级市2016—2019年间的城市密度、中心度、核心-边缘及联系强度进行研究,探讨东北地区的城市网络结构。研究发现,东北地区城市网络密度整体偏低,其中辽宁省密度最高。点出度高的城市与核心城市基本一致,主要有沈阳市、鞍山市、盘锦市等,是以沈阳为中心的诸多周边城市。城市联系强度不高,显著联系的城市有盘锦-营口、本溪-沈阳,其中辽宁省的城市联系强度最高。未来,需通过提升区域城市间经济与人口等方面的联系,以增强东北地区城市间的联系强度。

Based on the spatial connection value among cities,and through using social network analysis method,urban density,center,core-edge and urban connection strength from the scale of 41 prefecture-level cities in Northeast China are studied to explore the urban network structure.The study found that the overall urban network density in Northeast China is low,among which Liaoning Province has the highest density.Cities with high degree in northeast China are many surrounding cities with Shenyang as the center,which are basically the same as the core cities in northeast China,such as Shenyang.The urban connection intensity in Northeast China is not high,with only Panjin-Yingkou,Benxi-Shenyang,among which Liaoning Province has the highest urban contact intensity.In the future,it is necessary to strengthen the connection of regional cities,economy and population,etc.,and promote connection strength.