長三角城市群“空間流”網絡結構特征——基于公路運輸、火車客運及百度指數(shù)的綜合分析
發(fā)布時間:2018-05-02 01:16
本文選題:空間流 + 網絡結構 ; 參考:《長江流域資源與環(huán)境》2017年09期
【摘要】:信息技術的應用與社會信息技術的傳輸,使大量的要素(人流、物流、信息流)在城市群空間內集聚與擴散,加密城市群空間內城市聯(lián)系。在基于公路運輸、普通列車、高速列車以及百度指數(shù)4個要素的綜合分析基礎上,對長三角城市群"空間流"網絡結構特征進行探析。研究結果表明:(1)長三角城市群區(qū)域內城市聯(lián)系雖具備了網絡化規(guī)模,但城市間的聯(lián)系不均衡,以上海、南京、杭州等城市為多中心的協(xié)調網絡發(fā)展格局特征明顯;(2)長三角城市群16個核心城市"空間流"特征呈現(xiàn)三角形網絡結構,其三角形的頂角分別由上海(滬)、南京(寧)與杭州(杭)3個核心節(jié)點城市構成。在空間結構內部,形成若干次級城市網絡連線;在空間分布上,北翼網絡化程度較高于南翼線性聯(lián)系程度,區(qū)域聯(lián)系強度以"滬—寧"、"滬—杭"沿線向兩側遞減;(3)上海、南京、杭州、蘇州、無錫5個核心城市排名處于網絡中心的前列,揚州、南通、泰州、舟山等周邊城市相對靠后,這與區(qū)域經濟發(fā)展過程的"吸虹效應"有關,隨著區(qū)域經濟一體化程度的加深,中心城市會向周邊地區(qū)提供服務與經濟輻射,完善整個長三角城市群網絡體系。
[Abstract]:The application of information technology and the transmission of social information technology make a large number of elements (human flow, logistics, information flow) gather and spread in urban agglomeration and encrypt urban connections in urban agglomeration space. On the basis of the comprehensive analysis of 4 elements based on highway transportation, ordinary trains, high-speed trains and Baidu index, the "space" of the Yangtze River Delta city group is "space" The research results show that: (1) although the urban links in the urban agglomeration of the Yangtze River Delta have network scale, the relationship between cities is not balanced, and the multi center coordinated network development pattern of Shanghai, Nanjing, Hangzhou and other cities is obvious; (2) the spatial flow of 16 core cities in the Yangtze River Delta city group is characterized by the characteristics of "space flow" The triangle network structure is composed of 3 core node cities of Shanghai (Shanghai), Nanjing (Ningxia) and Hangzhou (Hangzhou). In the space structure, some secondary urban network connections are formed. In space distribution, the network level of the north wing is higher than the south wing linear connection degree, and the regional connection intensity is "Shanghai to Nanjing", "Shanghai Hangzhou". Along the two sides, (3) the 5 core cities of Shanghai, Nanjing, Hangzhou, Suzhou and Wuxi rank in the forefront of the network center, Yangzhou, Nantong, Taizhou and Zhoushan are relatively backward. This is related to the "siphon effect" in the regional economic development process. With the deepening of regional economic integration, the central city will provide the surrounding areas. Service and economic radiation, and improve the whole Yangtze River Delta urban agglomeration network system.
【作者單位】: 中國科學院流域地理學重點實驗室中國科學院南京地理與湖泊研究所;中國科學院大學;
【基金】:國家自然科學基金重點項目(41130750,41341170)~~
【分類號】:K901
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本文編號:1831795
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