山西省城镇空间分布特征数据挖掘研究
ata mining of urban spatial distribution characteristics Taking Shanxi Province as an Example
分布不均、城镇等级多、发展差距大等问题是目前城镇分布格局显现的主要特征,如何准确的展现城镇空间分布特征并挖掘出有效信息,成为现代化建设亟待解决的问题。本文利用Voronoi图的空间剖分特性,以山西省为例,将经济学中的城市中心性强度作为权重,建立山西省地级市加权Voronoi图,分析山西省地级市空间影响范围,从而判断山西省地级市发展的合理性和局限性;利用Delaunay三角网发现城市"空洞",结合道路河流等矢量信息叠加分析得到优先待发展县城,最后通过常规Voronoi图和 值判断其合理性和可行性。通过建模发现山西省太原市的空间影响范围较大,给周边地级市造成阴影,影响其快速发展;东西部发展较为不均衡等特征;同时发现繁峙县、灵石县、新绛县条件良好,可以优先发展,通过常规Voronoi图和 值验证发现结论较符合实际。
We can find out the uneven distribution of provinces, cities and towns grade and more large development gap and so on. How to accurately show the spatial distribution of urban and digging out useful information, has become a serious problem. In spatial data mining tools, Voronoi diagram with spatial subdivision role, it can be shown the scope of urban space, this article economics of the city center of strength as weights to establish the weighted Voronoi diagram prefecture-level cities, prefecture-level city of Shanxi Province, the scope of space to analyze the development of prefecture-level city in Shanxi judge the rationality and limitations. Use and Voronoi diagram of dual Delaunay triangulation and overlay analysis combined approach to discover the city "empty", to be developed county and road rivers and other vector information overlay analysis to be given priority to be developed county, combined with conventional Voronoi diagram and values determine its reasonableness and viable sex. Through modeling ,we can find Taiyuan affected other city's rapid development,caused imbalance of development of estern and western characteristics.We can find Fanzhi,Lingshi and Xinjiang in a good condition,then we conform it through Voronoi Diagram and values.
郑新奇、林慧
地理工程设计、工程测绘
Voronoi图空间数据挖掘配位数城市
Voronoi DiagramSpatial Data miningCoordination numberCity
郑新奇,林慧.山西省城镇空间分布特征数据挖掘研究[EB/OL].(2013-12-03)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201312-34.点此复制
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