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以长三角城市群各城市邮电业的产业密度为研究对象,综合运用空间探索性数据分析、泛克里格空间插值、空间变异函数等多种分析方法,对长三角城市群邮电业的产业密度时空分异特征及动力机制进行研究。结果表明:近十年来,长三角城市群邮电业的产业密度呈现出一定程度的正空间自相关关系,在空间上主要表现出自西向东逐渐增大,由北向南先增大后减小的趋势;邮电业的产业密度随距离逐渐衰减,且衰减速度呈递增趋势。产业密度扩散核心主要集中在城市群中心城市及其邻近腹地,城市群中心的产业密度大小同时又决定了产业密度空间扩散的速度及范围。尽管长三角城市群各城市产业密度逐渐增大,但不同区域间仍有较大差异,主要受生产要素流动、生态环境以及政策制度等因素的影响。
Taking the industrial density of the postal and telecommunications industry in cities in the Yangtze River Delta as the research object, this paper analyzes the industrial density of postal and telecommunications industry in the urban agglomeration of the Yangtze River Delta by comprehensively using various methods such as spatial exploratory data analysis, pan-Kerr interpolation and spatial variability functions Spatiotemporal differentiation characteristics and dynamics of the mechanism. The results show that in the past ten years, the industrial density of postal and telecommunications in the urban agglomeration in the Yangtze River Delta shows a positive spatial autocorrelation, which mainly shows a trend of increasing from west to east in space and increasing first and then decreasing from north to south The industrial density of postal and telecommunications industries gradually decayed with distance, and the decay rate showed an increasing trend. The core of industrial density diffusion mainly lies in the central cities of urban agglomerations and its adjacent hinterlands. The industrial density at the center of urban agglomerations also determines the speed and scope of industrial density diffusion. Although the industrial density of cities in the urban agglomeration of the Yangtze River Delta is gradually increasing, there are still large differences among different regions, which are mainly affected by factors such as the flow of production factors, the ecological environment and the policies and regulations.