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作 者:王璐玮 章屹祯 任传堂 汪涛[1,2] WANG Luwei;ZHANG Yizhen;REN Chuantang;WANG Tao(School of Geography,Nanjing Normal University,Nanjing,210023,China;Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University,Nanjing 210023,China)
机构地区:[1]南京师范大学地理科学学院,南京210023 [2]江苏省地理信息资源开发与利用协同创新中心,南京210023
出 处:《地理研究》2023年第10期2696-2712,共17页Geographical Research
基 金:国家自然科学基金项目(42271183);江苏高校哲学社会科学研究重大项目(2020SJZDA135)。
摘 要:对城市群而言,产业结构升级和竞争力提升需要以合理有序的产业空间组织模式作为支撑。本文从资金、技术、人脉维度构建城际网络,运用社区挖掘方法分析不同网络社区的内部联系和边界动态,并根据网络权力识别增长极,从城市群内、外双尺度剖析其虹吸-涓滴效应,透视马赛克隐喻下三大城市群生物医药产业的空间组织模式。结果发现:①在资金维度,京津冀城市群(京津冀)投资沿“分散化➝集聚化➝再分散化”演化;长三角城市群(长三角)投资沿“分散化➝内部分割➝一体化”演化;珠三角城市群(珠三角)投资沿“分散化➝高依附性➝去依附性”演化。②在技术维度,京津冀早期形成了星型拓扑结构,中期北京对周边腹地产生集聚阴影,近期技术一体化水平不断下降;长三角早期技术一体化初显,中期伴随投资的内部分割,技术流也呈现内部分割特征,近期则朝一体化反方向发展;珠三角的技术流始终保持分散化和内部分割特征。③在人脉维度,三大城市群均向一体化演进,长三角始终处于领先地位,珠三角次之,京津冀最末。④空间组织模式上,京津冀沿“单中心➝一主一门户➝一主双门户”演化;长三角沿“向心式➝离心式➝嵌套链式”演化;珠三角则始终为“一主双门户”模式。Structural upgrading and competitiveness of industries in urban agglomerations require a rational and orderly industrial spatial organization.This article examined the internal relationships and boundary dynamics of network communities in China's biomedical industry by constructing intercity networks based on the flow of capital,technology,and senior staff,and using the community exploration method.The article also identified the growth poles according to the network power to dissect their siphon and trickle-down effects and penetrate the spatial organization patterns of the biomedical industry at intra-and extra-urban agglomeration scales.The results show that(1)In the capital dimension,the investment in the Beijing-Tianjin-Hebei urban agglomeration(BTH)evolves along“decentralization➝agglomeration➝re-decentralization”;the investment in the Yangtze River Delta urban agglomeration(YRD)evolves along“decentralization➝internal fragmentation➝integration”;the investment in the Pearl River Delta urban agglomeration(PRD)evolves along“fragmentation➝high dependence➝de-dependence”.(2)In the technology dimension,the BTH initially forms a star-shaped topology with Beijing as the core,which subsequently creates an agglomeration shadow to neighboring cities,leading to a decrease in technology integration level in the later stage;the YRD shows technology integration in the early stage,internal division in the middle stage,and a reverse direction of integration in the later stage;the PRD's technology flow always presents a pattern of decentralization and internal division.(3)In the senior staff dimension,the three major urban agglomerations evolve towards integration,with the BTH lagging behind the YRD and the PRD.(4)For the spatial organization pattern,the BTH evolves along“single core➝one core and one portal➝one core and two portals”;the YRD evolves along a“centripetal➝centrifugal➝nested chain”;the PRD always presents“one core and two portals”.
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