信息流视角的山东省城市网络特征研究

City network structure of Shandong province based on information flow

研究城市网络中城市间相互联系、各城市节点特征对于优化城市空间组织、提升城镇化质量具有重要意义。基于信息流视角,应用社会网络分析方法,分析了山东省城市网络总体特征,探讨了城市网络流向特征,并对信息流的流向进行了T-检验。研究发现:1)济南-青岛双核心城市格局仍较显著。2)西部经济隆起带城市间孤立分散状态正在被逐渐打破,临沂重要性开始显现。3)城市网络流向集中趋势并不明显,网络的"扁平化"特征显著。

It is important to study the relationships among the cities and the characteristics of the city nodes for optimizing the space organization and enhance the quality of urbanization. This research applied Baidu index to count the density of the integral network under different threshold of the strength of links between the cities by social network analysis,with information flow as an example. Based on the analysis of the structure characteristics of city network in Shandong province,the directed network link was discussed by Node Symmety Index,and the paired T- test on inter city stream of information was carried out. The study nosed out some facts： 1） Ji＇nan-Qingdao double core city pattern was still significant. 2） The isolated state from the western economic zone between city in Shandong province was broken inch by inch. It was Linyi City that began to show the importance.3） The concentration flow of information was not obvious. The city network presented flat characteristics.