我国滨海城市网络时空格局研究——基于2012-2019年百度指数数据

Study on the spatial and temporal pattern of coastal city network in China:Based on baidu index data from 2012 to 2019

以我国滨海城市为研究对象,基于53个滨海城市2012-2019年的百度指数数据,借助基于信息流的城市网络研究、C-value和D-value层次分析法、拓扑网络等方法对我国滨海城市网络时空格局进行研究。结果表明:滨海城市联系强度首要节点呈"一主三副"格局,次要节点分布由"1+2+3+1"向"1+1+3+1"格局过渡,呈现南增北减非均衡变化趋势,城市网络联系复杂化;滨海城市呈现层级时间过程,控制型城市逐年减少,较多城市具有附属性,广州、杭州及上海等为典型的控制型城市,三亚、北海和防城港等为附属性城市代表;滨海城市呈现层级空间分布,主导型城市散布于各滨海省份,半主导型、从属型城市多沿省域界限分布,总体与核心—边缘理论相符。

Taking coastal cities in China as the research object,based on the data of baidu index of 53 coastal cities from 2012 to 2019,this paper studied the spatial and temporal pattern of coastal cities in China with the help of urban network research based on information flow,C-value and D-value analytic hierarchy process,and topological network.The conclusions are as follows:The primary node of the connection intensity of coastal cities shows the pattern of"one main node and three secondary nodes",while the distribution of secondary nodes transitions from"1+2+3+1"to"1+1+3+1".In the hierarchical time process of coastal cities,the number of controlling cities decreases year by year,and more cities have attached attributes.Guangzhou,Hangzhou and Shanghai are typical control cities,while Sanya,Beihai and Fangchenggang are representatives of affiliated cities.Hierarchical spatial distribution of coastal cities,dominant cities are scattered in coastal provinces,semi-dominant and subordinate cities are obviously distributed according to provincial boundaries,which is generally consistent with core-edge theory.