基于修正引力图谱分析的城市空间关联结构分析——以湖北省为例  

Correlation Analysis of Urban Spatial Structure Based on Modified Gravity Mapping Model:A Case Study of Hubei Province

作　　者：叶青清[1] 张德偲 曹隽隽[3] YE Qingqing;ZHANG Decai;CAO Junjun

机构地区：[1]湖北省社会科学院长江流域经济研究所,湖北武汉430077 [2]湖南城市学院建筑与城市规划学院,湖南益阳413000 [3]华中师范大学城市与环境科学学院,湖北武汉430079

出　　处：《城市发展研究》2021年第5期I0024-I0028,共5页Urban Development Studies

摘　　要：经典引力模型难以刻画城市间的引力动态关系,高速公路流量大数据支撑将为城市经济学研究提供新的视角。引入高速公路起止点(OD)流量数据改进经典引力模型,并结合修正引力图谱可视化手段和空间自相关分析方法,探究湖北省县市尺度相互引力强度及空间关联结构。研究表明:(1)湖北省县市间联系强度地域分异明显,整体呈现明显的降次等级结构,武汉核心城市单极化发展,区域辐射作用较强,襄阳和宜昌副中心城市辐射作用不强。(2)湖北城市空间自相关呈现东高西低,中部均衡格局。高速公路交通流量与经济质量指数空间自相关的高—高集聚具有空间重叠现象,且省内大部分区域未出现明显的轴线或面域高—高集聚。(3)湖北高速公路建设促进了区域基础设施建设均衡,但核心城市的"虹吸效应"仍旧突出,区域城市空间关联结构呈现以武汉市为中心的单核心空间结构特征,沿长江和汉江轴线发育模式不成熟。The classical gravity model is difficult to describe the dynamic relationship of gravity between cities.The support of big data of expressway flow provides a new perspective for the research of urban economics.The paper improves the classical gravity model by using the expressway OD flow data,and combines with the modified gravity spectrum visualization method and spatial autocorrelation analysis,further explores the county unit scale mutual gravity strength and spatial structure in Hubei province.The results are shown as follows:(1)The cities are significantly geographical differentiation in contact intensity in Hubei province,and the overall structure of the correlation between counties and cities shows an obvious hierarchical structure.The core city of Wuhan develops in a single polarization,and has a strong regional radiation,while the sub-central cities of Xiangyang and Yichang have a weak radiation effect.(2)It is shown that urban spatial autocorrelation in Hubei province reveals high in the east and low in the west,with a balanced pattern in the middle.The high-high agglomeration of the autocorrelation between the expressway flow and the economic quality index overlaps the space,and there is no obvious axis or plane high-high agglomeration in the most areas.(3)The construction of expressways in Hubei province has prompted the balance regional infrastructure construction,but the’’siphon effect’’of the core city is still outstanding.Meanwhile,the spatial correlation structure of the regional cities has presented the typical monocentric structure with Wuhan as the center.The regional economic development model along the axis of Yangtze river and Han river has not been mature yet.

关 键 词：引力图谱 OD交通流 空间自相关 空间结构 湖北省 

分 类 号：K902[历史地理—人文地理学]