多元流视角下东北城市网络特征分析

基于交通、信息、企业的多元要素视角,运用社会网络分析法从网络密度、中心性、核心-边缘结构三方面测度"流空间"背景下的东北城市网络结构特征,并对网络特征的影响因素进行探析。结果表明:①交通及信息流要素在东北城市间相互作用更加明显、网络联系相对紧密;多元流的城市网络结构均显示出省内联系强于跨省域联系,城市跨省域联动发展格局远未形成。②沈阳、大连、长春、哈尔滨四大城市在多元网络均处于主导性地位,区内辽中南及哈长两大城市群在网络中的发育水平较高。③多元流视角有交通信息型、交通商贸型、信息商贸型、交通信息商贸型四种核心-边缘结构类型,核心城市多分布在城市群内,对网络具有较强的控制作用,而边缘城市处于从属地位,尚未进入良好的协同发展阶段。④文章认为资源禀赋、时空压缩、区域经济、政策引导等因素共同影响区域网络结构特征。

Analysis of Network Characteristics of Northeast Cities from the Perspective of Multi-Flow

Based on the perspectives of multiple elements flow of transportation,information and enterprise,the social network analysis method is used to measure the characteristics of the network of Northeast cities from three aspects:network density,centrality and core-edge structure.From the network features,analyzing the formation mechanism of network features.The results show that:1)The interaction between traffic and information flow elements is more obvious in the northeast cities,and the network connection is relatively closed.Under the background of multiple flows,the urban network structure shows that the intra-provincial links are stronger than the cross-provincial links,and the urban crossprovincial linkage development pattern is far from being formed.2)The four major cities of Shenyang,Dalian,Changchun and Harbin are in a dominant position in the multi-network;the two urban agglomerations of mid-southern Liaoning and Ha-Chang have a higher level of development in the network.3)The multi-stream perspective has four coreedge structure types:traffic information type,transportation trade type,information trade type,and traffic information and trade type.The core city has a strong leading role.And it is concentrated in the mid-southern Liaoning and Ha-Chang.The marginal area in the state of subordinate has not yet entered a good stage of linkage development.4)This paper holds that resource endowment,space-time compression,regional economy,policy guidance and other factors together affect regional network structure characteristics.