人口省内迁移的空间结构研究——以福建省为例

SPATIAL STRUCTURE OF INTRA-PROVINCIAL MIGRATION:A CASE STUDY OF FUJIAN PROVINCE

在省内迁移逐渐成为国内迁移流动主导模式的城镇化中后期阶段,本文以福建省为案例地,基于第七次人口普查中“五年间”迁移口径的省内跨县(市、区)迁移O-D流数据,综合运用迁移率指标和社区发现算法,开展了福建省内跨县(市、区)迁移的空间结构研究。结论如下:(1)福建省内迁移整体进入活跃性的同时,不同迁移地域类型间存在分异。(2)迁移流勾绘的迁移网络在空间上形成了多样化的迁移组合;迁移网络进一步塑造了跨地市迁移圈的福宁南、厦漳迁移圈,以及本地市迁移圈的泉州、莆田、三明、龙岩迁移圈。(3)基于福建省的实践,凝练了跨都市区的层递迁移、跨都市区的链式迁移、都市区内的多点迁移和都市区内的向心迁移4种空间结构类型。

At the late-intermediate stage of urbanization in China,the intra-provincial migration has become the leading mode of domestic migration.Under the above background,this paper takes Fujian province as a case,based on the usual residence five years“Origin-Destination”flow of intra-provincial migration data in 2020,by building migration rate indexes and using community detection method to divide the migration re-gional types,and identify the migration circles,and concise the spatial structures.The conclusion can be summarized as follows.1)Five regional types of inter-county migration are identified.The large-scale and small-scale active net in-migration types are the peripheral counties of coastal cities rather than the central districts;the small-scale active net out-migration areas are mainly distributed in the marginal counties in the inland.2)On the basis of migration flow between different migration regions,the migration network forms diverse spatial migration combinations,and six migration circles are identified.3)Based on the practice of Fujian,there are four spatial structures can be extracted.They are the inter-level migration crossmetropolitan area,the chain migration cross-metropolitan area,the multi-migration within metropolitan area,and the moving toward core within metropolitan area.