高铁网络与经济网络演进特征及协同关系研究——以中国省域中心城市为例

加快高铁网络建设,改善区域经济网络联系,是实现区域协调发展的重要举措。文章基于社会网络分析方法和引力模型,分析中国省域中心城市高铁网络与经济网络时空演进特征,并对其协同互动关系进行检验。研究发现:中国高铁网络的整体密度呈现不断上升的趋势,整体网络结构趋于复杂化,而城市经济网络随时间演进的特征不是十分明显;高铁在一定程度上促进了城市之间要素的流动,有助于推动区域经济差异的缩小。QAP相关分析验证了高铁网络与城市经济网络正相关关系,表明二者之间能够起到相互推动的作用,格兰杰因果检验的结果进一步表明高铁网络与经济网络存在着双向影响,经济网络对高铁网络的影响更为显著。

Study on Evolution Characteristics and Synergy Between High-speed Railway Network and Economic Network in China's Provincial Center Cities:Take Provincial Center Cities for Example

Speeding up the construction of high-speed rail network and improving regional economic network links are important measures to realize coordinated regional development.Based on social network analysis and gravity model,this paper analyzes the spatial evolution characteristics of high-speed rail network and economic network in China’s provincial center cities,and tests their interaction relationship.The study finds that the overall density of China’s high-speed rail network shows a rising trend and the network structure tends to be more complicated,while the evolutionary characteristics of urban economic network are not very obvious.To a certain extent,high-speed rail promotes the flow of factors between cities and helps to reduce regional economic differences.QAP analysis verifies the positive correlation between the high-speed rail network and the urban economic network,showing that they can promote each other.Granger causality test results further show that the high-speed rail network and the economic network are interacted on each other,but the economic network has more significant influence on the high-speed rail network.