物流一体化视角下城市群空间组织优化研究——以长江经济带城市群为例

摘要

提出城市群物流一体化水平评价指标体系,采用熵值法确定评价指标权重,构建城市群物流一体化水平评价模型,利用模型测度结果改进引力模型,定量分析长江经济带城市群物流一体化的空间格局. 结果显示:长江经济带城市群物流一体化具有明显的"中心—外围"特征,且层级结构差异显著;长三角城市群与鄱阳湖城市群、江淮城市群呈现出明显的与"中心—腹地"经济关系相吻合的空间格局;长江中游城市群的核心城市物流经济辐射强度存在明显的空间梯度,物流一体化水平呈现不同的空间分布特征. 在此基础上,探讨了城市群物流一体化对城市群空间组织的优化作用机制,并提出长江经济带城市群空间组织的优化策略.%By the establishment of logistics integration level of urban agglomeration evaluation index system, based on the use of entropy method to determine index weight and built the evaluate model of logistics integration lev-el of urban agglomeration.The gravity model was adjusted by the calculation of urban agglomeration logistics integra-tion which was used to assess the spatial distribution characteristics of logistics integration level of Yangtze River Eco-nomic Zone urban agglomeration.The results show that:the spatial distribution characteristic named"center-periph-ery" of logistics integration level of Yangtze River Economic Zone urban agglomeration shows a obvious and different-hierarchical;Poyang Lake urban agglomeration and Jianghuai urban agglomeration are beside Yangtze River Delta ur-ban agglomeration, which are forming a spatial distribution characteristic that obviously coincide with the economic relationship of "center-periphery";the urban agglomeration in the middle reaches of the Yangtze River exhibits dif-ferent spatial distribution characteristics of logistics integration level and significant spatial gradients of economic radi-ation intensity of logistics between core city and other internal city of urban agglomeration.Based on this, some opti-mization proposals are put forward according to the optimization influence mechanism of urban agglomerations spatial organization improved by logistics integration level.