基于改进引力模型的成渝地区双城经济圈城市经济联系网络演变研究  

Research on Evolution of Urban Network in Chengdu-ChongqingEconomic Circle Based on Improved Gravity Model

作　　者：董威威 蒋贵国[1,2] 梁小雅 钟孟君 程珍旎 DONG Weiwei;JIANG Guiguo;LIANG Xiaoya;ZHONG Mengjun;CHENG Zhenni(School of Geography and Resource Sciences,Sichuan Normal University,Chengdu 610101,Sichuan;Southwest Land Evaluation and Monitoring Ministry of Education Key Laboratory,Sichuan Normal University,Chengdu 610066,Sichuan)

机构地区：[1]四川师范大学地理与资源科学学院,四川成都610101 [2]四川师范大学西南土地评价与监测教育部重点实验室,四川成都610066

出　　处：《四川师范大学学报（自然科学版）》2025年第1期82-93,共12页Journal of Sichuan Normal University（Natural Science）

基　　金：国家自然科学基金青年基金(41801140)。

摘　　要：借助改进的引力模型,结合社会网络分析方法,以成渝地区双城经济圈132个区县为例,从综合网络、“双核”网络和廊道网络3个视角探索成渝地区双城经济圈区县经济联系的网络特征与变化,结果表明:1)2005—2019年间区县间经济联系总量显著增长,一级联系的数量和占比大幅度增加,但四川省、重庆市之间仍旧缺乏高质量的一级联系.2)综合网络的网络密度和网络可达性明显提升,层级性下降趋势明显,区县间等级结构依旧分明;“双核”网络均属于同配性核心-边缘网络,小世界特性逐步明显;廊道网络属于韧性网络,网络密度和网络可达性整体提高.3)网络中心度水平整体较高,呈现明显的圈层结构,成都市和重庆市主城区始终处于核心地位,掌握着网络权,相较于重庆市,四川省部分区县差距仍较大,省内发展不均衡问题依旧明显.4)2005—2019年15 a间,绝大多数区县都融入了相近模块的发展趋势,截至研究期末仅存在古蔺县、芦山县、宣汉县和仪陇县4个孤立区县.With the help of improved gravity model and social network analysis method,this paper takes 132 districts and counties in the Shuangcheng economic Circle of Chengdu-Chongqing area as examples,exploring the characteristics and changes of the economic connection network of the districts and counties in the Shuangcheng Economic Circle of Chengdu-Chongqing area from three perspectives:comprehensive network,“dual-core”network and corridor network.The results are as follows:1)The total amount of inter-county economic linkages increased significantly from 2005 to 2019,and the number and proportion of first-level linkages increased significantly,but there is still a lack of high quality inter-provincial contact between Sichuan and Chongqing.2)The network density and network accessibility of the integrated network are obviously improved,the hierarchical trend is obviously decreased,and the hierarchical structure between districts and counties is still clear.The“dual-core”network belongs to the core-edge network,and the small-world characteristics are gradually obvious.The corridor network belongs to the toughness network,and the network density and network accessibility are improved overall.3)The overall level of network centrality is relatively high,showing an obvious circle structure.The main urban areas of Chengdu and Chongqing are always in the core position and hold the network rights.Compared with Chongqing,the gap between some districts and counties in Sichuan is still large,and the problem of unbalanced development in the province is still obvious.4)In the past 15 years,most of the counties had integrated the development trend of similar modules,and by the end of the study,only four isolated counties existed:Gulin County,Lushan County,Xuanhan County and Yilong County.

关 键 词：社会网络分析 城市经济联系 成渝地区双城经济圈 改进引力模型 

分 类 号：F129.9[经济管理—世界经济]