长三角地区交通一体化的多尺度分析及空间效应  

Multi-scale Analysis and Spatial Effect of Transportation Integration in the Yangtze River Delta

作　　者：王亮 蒋海兵 刘丙章 WANG Liang;JIANG Haibing;LIU Binzhang(School of Urban and Planning,Yancheng Teachers University,Yancheng 224000,Jiangsu,China)

机构地区：[1]盐城师范学院城市与规划学院,江苏盐城224000

出　　处：《经济地理》2024年第1期99-106,共8页Economic Geography

基　　金：国家自然科学基金面上项目(42271191);江苏高校哲学社会科学研究重大项目(2021SJZDA024)。

摘　　要：从区域时空压缩的角度出发,通过构建综合交通可达性模型,测度长三角地区41个地级及以上城市间最短时间距离及其变化,利用德尔菲法和等时圈分析法等方法,从城市、都市圈、城市群3个尺度探讨长三角地区一体化水平的空间异质性,为长三角地区一体化方案制订及实施提供参考依据。研究发现:(1)在交通一体化建设背景下,高铁和城际铁路的建设和开通使得城市之间的时间距离大幅度缩短,城际社会经济交流更加密切,区域内1 h以内的城市对数量急剧增多;(2)区域高水平一体化地区集中分布于沪宁和沪杭等轴带地区,长江经济带沿线城市一体化水平较高;(3)在时空压缩效应下,区域中心城市扩大了“溢出效应”和“同城效应”的地域范围;(4)长三角地区一体化空间异质性随着高速交通网络不断完善而发生改变,杭州、无锡、苏州、合肥等城市逐渐成为长三角地区新兴核心城市,芜湖、安庆等城市在城市网络中的作用也在逐渐加强。From the perspective of regional spatiotemporal compression,this article constructs a comprehensive transportation accessibility model to measure the shortest time distance and its changes between 41 municipal-level cities in the Yangtze River Delta region.Based on the methods of Delphi and isochronous circle,this article explores the spatial heterogeneity of the integration level of the Yangtze River Delta urban agglomeration from the three dimensions of municipal level,metropolitan level and urban agglomeration level,which provides a reference basis for the formulation of integration plans and policies in the Yangtze River Delta region.The main findings are as followings:1) In the context of traffic integration construction,the construction and opening of high-speed railway and inter-city railway have significantly shortened the time distance between cities,made the intercity social and economic exchanges more close,and the number of city pairs within one hour has increased sharply.2) The regional high-level integration areas are concentrated in the Shanghai-Nanjing axis belt and Shanghai-Hangzhou axis belt,the integration level of cities along the Yangtze River Economic Belt is high.3) Under the spatiotemporal compression effect,regional central cities expand the geographical scope of "spillover effect" and "one-city effect".4) The spatial heterogeneity of integration in the Yangtze River Delta region has changed with the continuous improvement of the high-speed transportation network.Cities such as Hangzhou,Wuxi,Suzhou,and Hefei have gradually become emerging core cities in the Yangtze River Delta region,and the role of cities such as Wuhu and Anqing in the urban network is also gradually strengthening.

关 键 词：长三角城市群 交通 一体化 高铁 等时圈 都市圈 城市群 

分 类 号：K901[历史地理—人文地理学]