基于分形理论的江苏省南通市城镇体系空间结构研究-山东大学学报.PDF

DOI:10.13959/j.issn.1003-2398.2010.05.013 人文地理 2010 年第5 期总第115 期 文章编号： （ ） 1003-2398 2010 05-0069-06 基于分形理论的江苏省南通市 城镇体系空间结构研究 曹芳东 吴 江 徐 敏 ， ， 南京师范大学地理科学学院 南京 （ ， 210046 ） A FRACTAL STUDY ON THE URBAN SPATIAL STRUCTURE OF NANTONG CITY IN JIANGSU PROVICE CAO Fang -dong, WU Jiang, Xu Min (School of Geograp hical Science , Nanj ing Normal University , Nanj ing 210046, China) Abstract: This paper provide a research on the structural fractal features, the fractal features of urban spatial relationship and the fractal features of urban transportation network of Nantong city. The research is based on fractal theory by using the GIS software. The authors analyze the first index of urban system of Nantong, the gravitation of central city as well as the length of the transport network including radium dimension and net- work branches dimension. Firstly, the authors review the theoretical development of fractal geometry. The concept of fractal is defined as a rough or fragmented geometric shape that can be split into parts, each of which is (at least approximately) a reduced-size copy of the whole. The authors point out that the definition is too limited because in some cases, there