基于分形理论的安徽省城镇体系研究
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摘要
对安徽省城镇体系的等级规模结构、空间相关性和空间集聚性三方面进行了实证研究。结果表明:(1)城镇体系存在分形,无标度区对应的46~276km尺度范围内城镇体系存在自相似性。(2)城镇体系空间分布的集中度较高,空间相互作用较强,空间联系较紧密,但是处于中间位序的城镇数目较多,首位城市的垄断性不强;(3)安徽省五大城市中,以芜湖为中心的城镇体系空间集聚程度最高,合肥为中心的城镇体系空间集聚程度最低,蚌埠、淮南和阜阳介于两者之间。最后提出了城镇体系的优化措施。
The paper makes a study on urban system based on Fractal Theory in Anhui Province.Three characteristics have been summarized:(1)The urban system exists fractal and self-similarity within 46-276km scale.(2) There is a stronger spatial interaction among the cities of urban system,but medium-sized cities have a relatively large number,and the first city's monopoly is not strong.(3)The degree of spatial concentration of Wuhu urban system is the highest,and that of Hefei is the lowest,Bengbu,Huainan and Fuyang in between.In the end,some countermeasures are proposed.
The paper makes a study on urban system based on Fractal Theory in Anhui Province.Three characteristics have been summarized:(1)The urban system exists fractal and self-similarity within 46-276km scale.(2) There is a stronger spatial interaction among the cities of urban system,but medium-sized cities have a relatively large number,and the first city's monopoly is not strong.(3)The degree of spatial concentration of Wuhu urban system is the highest,and that of Hefei is the lowest,Bengbu,Huainan and Fuyang in between.In the end,some countermeasures are proposed.
引文
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[2]陈彦光,刘继生.城镇体系空间结构的分形维数及其测算方法[J].地理研究,1999,18(2):171-172.
[3]刘继生,陈彦光.城镇体系等级结构的分形维数及其测算方法[J].地理研究,1998,17(1):82-89.
[4]吴殿廷.区域分析与规划高级教程[M].北京:高等教育出版社,2004,316-317.
[5]徐建华.现代地理学中的数学方法[M].北京:高等教育出版社(第二版),2002,405-408.
[6]陈涛.城镇体系随机聚集的分形研究[J].科技通报,1995,11(2):98-101.
[7]刘耀彬,陈志,杨益明.湖北省城市体系空间结构发展研究[J].华中科技大学学报(城市科学版),2003,23(3):53-59.
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