基于场强模型的四川省中心城市吸引力范围演变研究  

Research on the Evolution of Attraction Range of Central Cities in Sichuan Province Based on Potential Model

作　　者：李明睿 徐颖 许小阳 Li Mingrui;Xu Yin;Xu Xiaoyang

机构地区：[1]云南大学建筑与规划学院规划系

出　　处：《城市建筑》2022年第23期44-52,共9页Urbanism and Architecture

基　　金：基于适应性的高原山地民族传统人居环境空间格局及文化景观特征研究(51878591);基于新媒体大数据的城市意象传播模式传播机制研究(2021J0005)。

摘　　要：本文选取2010年、2020年四川省156个城市的统计数据和交通数据,运用主成分分析法与场强模型,判别出四川省的吸引力范围,分析了吸引力范围的演变和空间特征。研究结果如下:①四川省内可达性显著提高,4小时交通圈范围显著扩大且沿东北—西南分布,沿西向延伸明显。②四川省吸引力强的区域以各级行政中心为核心,以圈层式向外扩散,并逐步形成由点到轴、由轴到面的发展格局。其中,吸引力较强的区域集中分布在四川省东部,西部吸引力较弱,形成“东强西弱”的空间格局。③成都市的吸引力范围最广且增幅最大。④从吸引力范围变化分析,吸引力范围增长的城市71个,吸引力范围减小的城市82个,吸引力范围不增不减的城市3个。⑤从四川省各级城市吸引力范围分析,一级城市即成都市核心位置突出且吸引力范围扩展趋势明显,但成都城市群区域发展不平衡;二级城市组团发展明显且区域性城市群初步形成,但部分二级城市出现了吸引力范围收缩的现象,甚至出现了“孤岛”的空间格局;三级城市吸引力范围空间分布较为均匀,与一、二级城市呈现出“核心—边缘”的空间格局,同时吸引力范围收缩的三级城市数量持续上升。In this paper,the statistical data and traffic data of 156 cities in Sichuan Province in 2010 and 2020 are selected,and the attractive areas of Sichuan Province in 2010 and 2020 are identified with principal component analysis method and field energy model,and the evolution and spatial characteristics of the attractive areas are analyzed.The results are as follows.①The accessibility in Sichuan Province has been significantly improved,and the four-hour traffic circle is distributed along the northeastsouthwest and extends obviously along the west.②The attractive areas in Sichuan Province take the administrative centers at all levels as the core,spread outward in a circle,and gradually form a development pattern from point to axis and from axis to surface.Among them,the regions with strong attraction are concentrated in the eastern part of Sichuan Province,while the western part has weak attraction,forming a spatial pattern of“strong in the east and weak in the west”.③Chengdu has the widest range of attraction and the largest increase.④From the change analysis of attraction range,there are 71 cities with increasing attraction range,82 cities with decreasing attraction range and 3 cities with constant attraction range.⑤According to the analysis of attractive range of cities at all levels in Sichuan Province,Chengdu,the first-class city,has a prominent core position and obvious trend of expanding attractive range,but the regional development of Chengdu urban agglomeration is unbalanced.Group development of secondary cities is obvious and regional urban agglomerations are initially formed,but some secondary cities have experienced the phenomenon of shrinking the scope of attraction,and even appeared the spatial pattern of“isolated islands”.The spatial distribution of attraction scope of tertiary cities is relatively homogeneous,showing a“core-edge”spatial pattern with primary and secondary cities,while the number of tertiary cities with shrinking attraction scope continues to rise.

关 键 词：城市吸引力范围 场强模型 OD成本矩阵 时空演变 四川省 主成分分析 

分 类 号：TU984.2[建筑科学—城市规划与设计]