基于物流企业的长三角地区城市网络结构

City network structure of the Yangtze River Delta region based on logistics enterprise network

物流企业是承担城市间物流配送任务的专业化经济组织,在全球城市网络研究方兴未艾的今天,基于物流企业关联的城市网络研究还相对较少。本文以全国百强物流企业的总部—分支机构为基础数据,采用网络分析方法对长三角地区城市网络的空间结构及其影响因素进行了分析。结果表明:基于生产/生活性物流功能的长三角地区空间关联格局呈现出"一体两翼"(上海为龙头,苏浙为两翼)的发展态势,并有逐渐向苏中和浙南等地区扩展的趋势;"一主两副"的空间结构正逐渐被打破,并呈现出"Z"字形向"一轴多极"的网络空间结构转变和中小城市跨区域的空间关联存在断层等新特征;在企业利益最大化与交通信息技术变革的作用下,长三角地区城市网络的形成主要受到GDP与城镇化率的影响。

Logistics enterprises are specialized economic organizations that carry out the tasks of logistics distribution among cities.With the emergence of global city network,research on city network of logistics enterprises,however,is relative few.Therefore,using the data of headquarters and branches of the top 100 logistics enterprises in China,this article analyzes the spatial structure and influencing factors of the city network of the Yangtze River Delta region in 2015.Characteristics of network spatial structure are interpreted from the view of production logistics and daily living material logistics in order to enrich the content of China＇s city network research and provide supports for the formulation of regional city network development strategies.The results show that：（1） Spatially,connectivity based on production logistics and daily living material logistics in the Yangtze River Delta region shows an＂one body and two wings＂pattern and a diffusion trend from the regional center to central Jiangsu and south Zhejiang.（2） The spatial structure of＂one core area and two subcore areas＂is gradually being broken,and some new features are emerging,including a transition of spatial structure from＂Z＂shape to＂one axis and multiple core areas＂and gaps in connectivity across regions in several middle-and small-sized cities.（3） Under the background of enterprise interest maximization and innovation of traffic and information technology,the development of city network of the Yangtze River Delta region is mainly influenced by GDP and urbanization rate.Distance to Shanghai,administrative level of the city,and average wages of staff are important factors in regional development but did not pass the significant test.In conclusion,the spatial structure of the Yangtze River Delta region is not entirely consistent with the characteristics of the existing urban hierarchy.