基于多元流的走廊地带城市网络联系分析——以辽西走廊为例

Relationship of Urban Network in Corridor Area Based on Multiple Flows:A Case Study of Liaoxi Corridor

城市网络理论是解释全球化演进过程中城市内外联系的新兴基础理论,并在国内外实证研究中得到了广泛认可与运用。但现有研究主要聚焦于城市群等闭合区域的内部网络,针对具有显著地域开放性与地域连通性特征的走廊地带的探索尚不多见。文章尝试在合理界定辽西走廊的开放区域的前提下,基于多元要素流,运用社会网络分析方法,对辽西走廊在开放区域中的内外关联网络进行刻画,认知走廊地带城市网络结构特征的独特性及其特定的影响因素。结果表明:①辽西走廊在东北与华北地区的交通联系上发挥着"走廊"的作用,形成了以北京、天津为南部节点,沈阳为北部节点,以唐山、秦皇岛、葫芦岛、锦州为轴的连续交通联系带;②辽西走廊因历史因素、外部联系、资源禀赋和行政壁垒及城市群壁垒等原因形成了以东侧南—北向带状发展为主,东—西横向发展不足的特点;③辽西走廊西部的承德、赤峰、朝阳在多元要素流联系中均处于"孤岛"状态,走廊西部与东部城市发展差距越来越大,"马太效应"显现,如何融入"辽西走廊"或开辟新的"辽西走廊"是走廊西侧面临的挑战。

Urban network theory is a new and basic theory to explain the interconnections between cities in the process of globalization.However,the existed studies mainly focused on the internal networks of closed regions,such as urban agglomeration,only a few studies paid attention to corridor areas with significant regional openness and connectivity.After defining the open area of the Liaoxi corridor reasonably,based on the multiple flows this study describes the internal and external networks of the Liaoxi corridor by social network analysing method,and analysises the characteristics of urban network structure in corridor areas and its specific influencing factors.The results show:1)The Liaoxi corridor plays a major role of connecting northeast China and north China,by transportation flow,and forms a continuous transportation connection belt,with Beijing and Tianjin as the southern nodes,Shenyang as the northern node and Tangshan,Qinhuangdao,Huludao and Jinzhou as the axis.2)Due to historical factors,external connections,resource endowment,administrative barriers and barriers in city agglomeration,the liaoxi corridor displays that the south-north zonal got the priority for development on the east side but the east-west horizontal did not get sufficient development.3)Cities of Chengde,Chifeng and Chaoyang on the west side of the liaoxi corridor are in a state of"Isolated Island"in the connection of information flow and traffic flow.The gap between the western and eastern cities in Liaoxi corridor is getting wider and wider,and the Matthew Effect is emerging.Finding the ways to integrate into the old the Liaoxi corridor or opening a new Liaoxi corridor is the challenge faced by the western cities of the corridor area.