创新是城市和区域持续增长的内生动力。区域整体的创新竞争力不仅取决于区域内个体城市的创新能力,也取决于不同城市之间的协同合作水平和网络化程度。首先,基于Web of Science数据库核心合集所收录的科研论文合著数据,构建京津冀、长...创新是城市和区域持续增长的内生动力。区域整体的创新竞争力不仅取决于区域内个体城市的创新能力,也取决于不同城市之间的协同合作水平和网络化程度。首先,基于Web of Science数据库核心合集所收录的科研论文合著数据,构建京津冀、长江三角洲和粤港澳大湾区三个城市群的跨城知识合作网络;然后,借助空间分析和网络分析技术,系统地研究其空间结构特征;最后,利用多元二次指派程序模型,考察三个城市群知识合作网络结构差异的影响因素。研究发现:第一,三个城市群的知识合作网络空间结构的演化均呈现出稳定的、渐进的发展模式,遵循"空间依赖"和"路径依赖"的一般规律;第二,三个城市群的知识合作网络均呈现出显著的"非均衡"特征,但同时也表现出不同程度的"均衡化"发展趋势;第三,城市群的知识合作网络结构演化受到多种地域因素的共同影响,但同一种地域因素对不同城市群的影响作用不完全一致。展开更多
Globalization and informatization promote the evolution of urban spatial organization from a hierarchical structure mode to a network structure mode,forming a complex network system.This study considers the coupling o...Globalization and informatization promote the evolution of urban spatial organization from a hierarchical structure mode to a network structure mode,forming a complex network system.This study considers the coupling of“space of flows”and“spaces of places”as the core and“embeddedness”as the link and a relevant theoretical basis;then we construct a conceptual model of urban networks and explore the internal logic of enterprise networks and city networks.Using the interlocking-affiliate network model and data from China’s top 500 listed companies,this study constructs a directed multi-valued relational matrix between cities in western China from 2005 to 2015.Using social network analysis and the multiple regression of quadratic assignment program model(MRQAP),this study adopts a“top-down”research perspective to analyze the spatio-temporal evolution and growth mechanism of the city network in western China from three nested spatial scales:large regions,intercity agglomerations,and intracity agglomerations.The results show the following:(1)Under the large regional scale,the city network has good symmetry,obvious characteristics of hierarchical diffusion,neighborhood diffusion,and cross-administrative regional connection,presenting the“core-periphery”structural pattern.(2)The network of intercity agglomerations has the characteristics of centralization,stratification,and geographical proximity.(3)The internal network of each urban agglomeration presents a variety of network structure modes,such as dual-core,single-core,and multicore modes.(4)Administrative subordination and economic system proximity have a significant positive impact on the city network in western China.The differences in internet convenience,investment in science and technology,average time distance,and economic development have negative effects on the growth and development of city networks.(5)The preferential attachment is the internal driving force of the city network development.展开更多
文摘创新是城市和区域持续增长的内生动力。区域整体的创新竞争力不仅取决于区域内个体城市的创新能力,也取决于不同城市之间的协同合作水平和网络化程度。首先,基于Web of Science数据库核心合集所收录的科研论文合著数据,构建京津冀、长江三角洲和粤港澳大湾区三个城市群的跨城知识合作网络;然后,借助空间分析和网络分析技术,系统地研究其空间结构特征;最后,利用多元二次指派程序模型,考察三个城市群知识合作网络结构差异的影响因素。研究发现:第一,三个城市群的知识合作网络空间结构的演化均呈现出稳定的、渐进的发展模式,遵循"空间依赖"和"路径依赖"的一般规律;第二,三个城市群的知识合作网络均呈现出显著的"非均衡"特征,但同时也表现出不同程度的"均衡化"发展趋势;第三,城市群的知识合作网络结构演化受到多种地域因素的共同影响,但同一种地域因素对不同城市群的影响作用不完全一致。
基金National Natural Science Foundation of China(41501176)National Natural Science Foundation of China(41961030)。
文摘Globalization and informatization promote the evolution of urban spatial organization from a hierarchical structure mode to a network structure mode,forming a complex network system.This study considers the coupling of“space of flows”and“spaces of places”as the core and“embeddedness”as the link and a relevant theoretical basis;then we construct a conceptual model of urban networks and explore the internal logic of enterprise networks and city networks.Using the interlocking-affiliate network model and data from China’s top 500 listed companies,this study constructs a directed multi-valued relational matrix between cities in western China from 2005 to 2015.Using social network analysis and the multiple regression of quadratic assignment program model(MRQAP),this study adopts a“top-down”research perspective to analyze the spatio-temporal evolution and growth mechanism of the city network in western China from three nested spatial scales:large regions,intercity agglomerations,and intracity agglomerations.The results show the following:(1)Under the large regional scale,the city network has good symmetry,obvious characteristics of hierarchical diffusion,neighborhood diffusion,and cross-administrative regional connection,presenting the“core-periphery”structural pattern.(2)The network of intercity agglomerations has the characteristics of centralization,stratification,and geographical proximity.(3)The internal network of each urban agglomeration presents a variety of network structure modes,such as dual-core,single-core,and multicore modes.(4)Administrative subordination and economic system proximity have a significant positive impact on the city network in western China.The differences in internet convenience,investment in science and technology,average time distance,and economic development have negative effects on the growth and development of city networks.(5)The preferential attachment is the internal driving force of the city network development.
