生态学报2018，Vol.38Issue(6)：1964-1974,11.DOI:10.5846/stxb201703080388
基于复杂网络的长三角城市对外服务群落结构研究
Analysis of community structure in the Yangtze River Delta region： a case study of urban external services
摘要
Abstract
Urban agglomeration is an important spatial carrier of social and economic activities in global competition and the international labor division.Accordingly,China's urban agglomeration is transforming from a traditional hierarchical structure to a complex and nested structure.To reveal the multi-level community structure in the Yangtze River Delta region,we first constructed three types of networks from different external service flows (producer,consumer,and public),and then conducted a Social Network Analysis to examine network structures and relationships among them.The research findings are threefold.First,service networks were constituted of different hierarchical structures.The node distribution in producer and consumer service networks was characterized by a long tail and high degree of differentiated outflow.Second,different types of service networks exhibited both vertical and horizontal differentiation.In vertical structure,the percentage of flow and spatial pattern at each level varied.In horizontal structure,an early form of external service specialization emerged among some cities,which have expanded beyond their geographical boundaries and showed a pattern of crossregion agglomeration.Third,there was a strong correlation between networks of producer and consumer services.Both types of networks showed consistency among medium-and low-grade nodes,indicating a mutual growth pattern.The structure of the public service network was different from the other two networks,which has enriched and strengthened the functions of urban communities.The results of this study can facilitate the understanding of the multi-dimensional structure of the urban community,and have useful implications for regional and urban planning and organization.关键词
城市对外服务/群落结构/复杂网络/长三角地区Key words
external services/community structure/social network analysis/Yangtze River Delta region引用本文复制引用
王钊,杨山,刘帅宾..基于复杂网络的长三角城市对外服务群落结构研究[J].生态学报,2018,38(6):1964-1974,11.基金项目
国家自然科学基金项目(41771171,41471135) （41771171,41471135）
江苏省普通高校研究生科研创新计划项目(KYLX16_1270) （KYLX16_1270）
江苏省社会科学基金项目(16SHC004) （16SHC004）
江苏高校优势学科建设工程资助项目 （）
