基于加权Voronoi图的四川省城市空间辐射范围研究

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中图分类号：K921/927 文献标志码：A 文章编号：1673-5072（2025）04-0396-07

Abstract：As the spatial carier of social and economic development，cities are the core and epitome of regional economic development，and therelationship between cities in the region is geting closer and closer.Determining the space radiation range of cities is the prerequisite for coordinating the relationship between cities in the region.Taking 21 prefecture-level cities（states）in Sichuan province as the research object，this paper calculated the original comprehensive strength scores of cities through principal component analysis.The scores standardized were introduced into the weighted Voronoi diagram model as the weight，soas to divide the space radiation range of cities in Sichuan province and make a comprehensive analysis.It is found that the comprehensive strength of most cities in Sichuan province improves from 2016 to 2021，but the comprehensive strength of Bazhong and Liangshan Yi autonomous prefecture obviously decreases，and the corresponding urban space radiation range greatly reduces;the space radiation range of a city with a high comprehensive strength score may not necessarily be large;there are diferences between the space radiation range and the administrative division range of almost allcities in Sichuan province，especially in Chengdu，Panzhihua，Garze Tibetan autonomous prefecture and Aba Tibetan and Qiang autonomous prefecture.In a word，from 2016 to 2021，the urban development in Sichuan province shows an upward trend，but there is a big gap in economic strength between cities.In the future，we should deeply explore the causes of the differences and promote the balanced and coordinated development of cities.

Keywords：weighted Voronoi diagram; principal component analysis;comprehensive strength evaluation; space radiation range

国家发展改革委发布的《关于培育发展现代化都市圈的指导意见》中强调了以中心城市引领城市群发展，推进都市圈一体化的重要性，涉及优化城镇化布局形态、加强城市间的协同发展等方面，这对城市空间辐射范围的研究具有指导意义。（剩余7243字）