CAJ | 학술논문

乡镇尺度的人口流动联系和空间结构研究对统筹区域城镇体系规划和产业结构调整具有重要意义。本文以复杂网络理论为研究视角。将空间可达性引入传统辐射模型进行参数修正，构建乡镇人口流动网络；从节点和社团结构以及无标度和小世界特征等方面。探讨在地域差异影响下人口流动的空间分布格局和复杂网络特征。并以荆门市55个乡镇为例进行实证研究。结果表明：①荆门市乡镇人口流动网络的节点度分布以高发展水平乡镇为核心。呈现“一横二纵”的空间分异格局。与荆门市城镇体系和产业布局存在极强的耦合关系；②全网包含四个社团，各社团内部联系紧密且空间结构特征各异，社团间联系相对松散。③受空间距离和地理环境影响，网络的无标度特征不够明显；④网络具有一定的小世界特征，整体联通性和局部集聚性较好。本文通过对传统模型进行方法改进，实现了异质空间下乡镇人口流动联系及分布的可视化表达，实例研究结果可为荆门市城镇规划和产业布局提供决策思路。
향진척도적인구류동련계화공간결구연구대통주구역성진체계규화화산업결구조정구유중요의의。본문이복잡망락이론위연구시각。장공간가체성인입전통복사모형진행삼수수정，구건향진인구류동망락；종절점화사단결구이급무표도화소세계특정등방면。탐토재지역차이영향하인구류동적공간분포격국화복잡망락특정。병이형문시55개향진위례진행실증연구。결과표명：①형문시향진인구류동망락적절점도분포이고발전수평향진위핵심。정현“일횡이종”적공간분이격국。여형문시성진체계화산업포국존재겁강적우합관계；②전망포함사개사단，각사단내부련계긴밀차공간결구특정각이，사단간련계상대송산。③수공간거리화지리배경영향，망락적무표도특정불구명현；④망락구유일정적소세계특정，정체련통성화국부집취성교호。본문통과대전통모형진행방법개진，실현료이질공간하향진인구류동련계급분포적가시화표체，실례연구결과가위형문시성진규화화산업포국제공결책사로。
It is of great significance for the regional urban system planning and industrial structure adjustment to explore the relationship and spatial structure of population mobility on the scale of town. The paper, from the perspective of complex network theory, by introducing spatial accessibility to traditional radiation and correcting parameter, builds a network of population mobility among towns. From the perspectives of node, community structure, scale free and small world characteristics, the paper also discusses the spatial distribution pattern and complex network characteristics of population mobility under the influence of regional differences. On basis of the empirical research of 55 towns in Jingmen City, the results reveal that： firstly, the node degree distribution of population mobility network of towns in Jingmen City centers around the towns who are relatively developed, presents a pattern of spatial disparities with the characteristics of ＂one vertical line and two horizontal lines＂, and shows an obvious couple relationship with the urban system and industrial layout of Jingmen City. Secondly, the whole network consists of four communities whose interior spatial structures are close and different from each other and the relationships among them are relatively loose. Thirdly, impacted by the spatial distance and geographic environment, scale free charateristics are not obvious. Fourthly, to certain extent, the network bears the characteristic of small world whose overall connectivity and local clustering are obvious. By improving the traditional model, the paper realizes the visual presentation of the relationship and distribution of township population mobility in the heterogeneous space, and the results of this empirical research are of great value in decision making of Jingmen＇ s town planning and industrial layout.