摘要
基于特定行业的企业联系数据研究城市网络具有独特的价值,对理解产业格局和城市功能都有重要意义。本文利用中国A股上市医药企业总部和子公司区位信息,研究中国医药行业的城市网络空间结构及其特征。研究发现:(1)中国医药企业总部主要集中在沿海三大经济区,即京津冀、长三角和珠三角地区;(2)中国医药企业的城市网络大致呈现以京津冀、长三角、珠三角、成渝地区及武汉为中心的菱形结构;城市网络之间的联系强度差异显著,主要通过等级扩散和邻近扩散形成,表现在发达城市之间及距离相近者联系较强;(3)发达城市在网络中普遍具有较高的权力和影响力,部分药材资源丰富的中小城市也在网络中发挥重要作用;(4)中国医药行业仍处于国际化的初期阶段,在该行业拥有较强国际联系的城市有杭州、深圳、昆明、天津等;(5)医药产业不同行业城市网络空间格局差异较大,北京、上海、武汉等大城市在各个网络中都发挥重要节点的连通作用。
Urban network research based on a specific type of industry has unique value and is essential for understanding the industrial pattern and urban function.Using the data of headquarters and branches of the Chinese A-share listed medicine enterprises,this article analyzes the characteristics of urban networks shaped by these firms.The results show that：（1） Most of the headquarters of medicine enterprises are concentrated in the coastal economic regions,including the Yangtze River Delta,the Pearl River Delta,and the Beijing-TianjinHebei Region.Wuhan,Beijing,and Hangzhou are the important nodes in the network.（2） Five urban clusters stand out in the urban networks shaped by Chinese medicine enterprises.Moreover,the connectivity values in urban networks are significantly different,which are mainly formed by hierarchical diffusion and proximity diffusion,with strong connections between the developed city pairs and their surrounding cities.（3） Developed cities generally have high power and influence in the network.Meanwhile,some small or medium-sized cities with abundant resources have also played an important role in the network.（4） China＇s medicine industry is still in the early stages of internationalization.Only a few cities,such as Hangzhou,Shenzhen,Kunming,and Tianjin,have strong international connections.（5） The spatial structures of urban networks vary greatly among different subsectors of medicine enterprises,while Beijing,Shanghai,Wuhan,and other major cities play a central role in all subnetworks.
作者
叶雅玲
杨博飞
何紫云
曾贝妮
潘峰华
方成
YE Yaling;YANG Bofei;HE Ziyun;ZENG Beini;PAN Fenghua;FANG Cheng(School of Urban Planning and Design,Peking University Shenzhen Graduate School,Shenzhen 518055,Guangdong,China;Beijing Key Laboratory of Environmental Remote Sensing and Digital Cities,Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China)
出处
《地理科学进展》
CSSCI
CSCD
北大核心
2018年第8期1096-1105,共10页
Progress in Geography
基金
国家自然科学基金项目(41871157)
国家社会科学基金重大项目(14ZDA035)~~
关键词
医药企业
城市网络
空间结构
上市企业
企业网络
中国
medicine enterprise
urban network
spatial structure
publicly listed firm
firm network
China
