基于高德人口迁徙数据的松花江流域城市网络格局研究

Research on Urban Network Patterns of Songhua River Basin Based on Auto Navi Map Population Migration Data

城市间人口迁徙是城市联系的直接体现,基于松花江流域内20个城市的高德人口迁徙数据,采用GIS空间分析和社会网络分析方法,对松花江流域城市网络格局进行了研究。结果表明:①松花江流域内城市网络密度较大,形成“一核一轴”的城市网络格局,流域“中部强、东西两侧弱”的联系特征明显;②整个流域城市网络由1个核心城市、4个城市对、3个子群构成,地理邻近城市之间更容易形成子群或者城市对;③人口集散能力以流域中部的哈尔滨、长春、绥化三市为最强,由中部向东西部减弱。

Inter-city migration is the direct embodiment of urban connection.Based on the Auto Navi Map population migration data of 20 cities in Songhua River Basin,the urban network patterns of Songhua River Basin are studied by using GIS spatial differentiation and social network analysis method.The results show that:①The urban network density in the Songhua River Basin is larger,forming an urban network pattern of"one core and one axis",and the association characteristic of"strong in the middle and weak in the east and west sides"is obvious.②The urban network of the whole basin is composed of 1 core city,4 city pairs and 3 subgroups.It is easier to form subgroups or city pairs among geographically adjacent cities.③The population distribution capacity of Harbin City,Changchun City and Suihua City in the middle of the basin is the strongest,and it weakens from the middle to the east and the west.