环渤海经济圈经济联系强度及其网络结构时空异质性  

Spatial-temporal Heterogeneity of Economic Connection Intensity and Its Network Structure in Bohai Economic Circle

作　　者：毛文洁 边莉莉 胡琳悦 赵玉梅 秦伟山 孙海燕 MAO Wenjie;BIAN Lili;HU Linyue;ZHAO Yumei;QIN Weishan;SUN Haiyan(School of Resources and Environmental Engineering,Ludong University,Yantai 264039,China;Zibo Traffic Construction and Development Center,Zibo 255000,China)

机构地区：[1]鲁东大学资源与环境工程学院,山东烟台264039 [2]淄博市交通建设发展中心,山东淄博255000

出　　处：《鲁东大学学报（自然科学版）》2024年第4期309-318,共10页Journal of Ludong University:Natural Science Edition

基　　金：山东省自然科学基金面上项目(ZR2023MD126);山东省高校青年创新团队项目(2021RW042);山东省优质教育教学资源建设项目(SDYKC2023157)。

摘　　要：环渤海经济圈作为拉动我国经济增长的新引擎,在新时代经济高质量发展中肩负着重大使命。以环渤海经济圈所在的三省两市共计43个城市为研究对象,依托ArcGIS 10.8及Ucinet 6.0平台,运用修正引力模型、社会网络分析方法探究2010—2021年各城市之间的经济联系强度及其网络结构的时空异质性。结果表明:(1)环渤海经济圈经济联系强度逐渐提升,增长速度由快变慢,区域分化较为明显,经济联系高值城市集中且稳定,大部分城市处于较低联系水平;(2)网络密度值整体偏低、缓慢增长,由高到低呈现中部、南部、北部的空间分布特征,网络结构趋于复杂,紧密化程度显著提升;(3)中心性呈现整体提升、经济辐射不均衡的时空异质性;(4)经济圈内城市二级层面形成4个凝聚子群,三级层面在研究时段前期形成8个子群,后期减少至7个,子群呈现三区多点的空间分布格局。在此基础上提出了加强区域合作、明确核心城市以及打造交通运输圈等建议,以期为环渤海经济圈区域协调及高质量发展提供参考。As a new engine to stimulate China s economic growth,the Bohai economic circle shoulders an important mission in the high-quality economic development in the new era.Based on ArcGIS 10.8 and Ucinet 6.0,this paper takes 43 cities in three provinces and two cities where the Bohai economic circle is located as the research object,and uses the modified gravity model and social network analysis method to explore the spatial-temporal heterogeneity of economic ties and network structure between cities from 2010 to 2021.The results are as follows.(1)The intensity of economic ties in the Bohai economic circle has gradually increased,the growth rate has slowed down from fast to slow,the regional differentiation is obvious,the cities with high economic ties are concentrated and stable,and most cities are at a low level of ties.(2)The overall network density value is low and slowly increasing.From high to low,it presents the spatial distribution characteristics of the middle,south and north.The network structure tends to be complex and the degree of compactness is significantly improved.(3)Centrality presents the spatial-temporal heterogeneity of overall improvement and unbalanced economic radiation.(4)Within the economic circle,four agglomerative subgroups are formed at the secondary level of the city,and eight subgroups are formed at the tertiary level in the early stage of the study period,and then reduced to seven at the later stage.The subgroups show a spatial distribution pattern of three areas and multiple points.On this basis,some suggestions are put forward,such as strengthening regional cooperation,defining core cities and building transportation circles,in order to provide reference for regional coordination and high-quality development of Bohai economic circle.

关 键 词：经济联系 网络结构 引力模型 环渤海经济圈 

分 类 号：F061.5[经济管理—政治经济学]