环鄱阳湖城市群经济网络演变特征分析

基于经济网络视角,结合社会网络分析方法对环鄱阳湖城市群经济联系网络进行研究,结果表明:1)环鄱阳湖城市群城市联系由孤立状态逐渐趋向于网络化,但整体网络仍较为松散; 仅以南昌为中心的核心区经济联系较为密切,城市群由低水平均衡发展阶段向强集聚阶段转变; 2)经济网络的凝聚子群由“3片区,5子群”向“4片区,8子群”组团现象转变,并由空间紊乱逐步趋向于空间集聚,边缘区域的“低谷效应”明显改善,但外围联系仍然较弱; 3)城市群经济发展出现“马太效应”,地级市在经济网络中仍处于主导地位,南昌市—上饶市形成了区域双核结构,具有显著的空间极化作用.结合结论和发现的问题提出继续推进大南昌都市圈建设和推进城市群组团发展等建议.

The Analysis on Evolutionary Characteristics of Economic Network of Urban Agglomeration Around the Poyang Lake

Based on the perspective of economic network,the economic contact network of urban agglomeration of Poyang Lake combining with social network analysis method is studied.The results show that the urban linkage of Poyang Lake urban agglomeration tends to develop from an isolated state to a network,but the overall network is still relatively loose.Only the Nanchang-centered core area has closer economic links,and the urban agglomerations develop from a low-level balanced stage to strong aggregation status.The condensed group of economic network has changed from a "three-zone,five-sub-group"to a"four-zone,eight-sub-group" phenomenon.And it is developed to a space agglomeration status from the spatial disorder status gradually,and the "low valley effect" in the peripheral regions has improved significantly.However,the peripheral contacts are still weak.The economic development of urban agglomerations has shown a "Matthew effect",the prefecture-level cities are still in a dominant position in the economic network.Nanchang City-Shangrao City has formed a regional dual-core structure,which has significant spatial polarization.Based on the conclusions and the found problems,the suggestions that continue to promote the construction of the Greater Nanchang Metropolitan Area and promote the development of urban groups are made.