地理研究

地理研究 ›› 2011, Vol. 30 ›› Issue (12): 2163-2172.doi: 10.11821/yj2011120004

• 城市与乡村 • 上一篇    下一篇

基于分形理论的江苏省城市规模分布与异速生长特征

孙在宏1,2, 袁源2, 王亚华2, 张小林2   

  1. 1. 南京大学地理与海洋科学学院,南京 210093;
    2. 南京师范大学地理科学学院,南京 210046
  • 收稿日期:2011-06-23 修回日期:2011-11-06 出版日期:2011-12-20 发布日期:2011-12-20
  • 作者简介:孙在宏(1964-),男,安徽芜湖人,副教授,主要从事土地信息系统与土地利用规划研究。 E-mail:sunzaihong@gtis.com.cn
  • 基金资助:

    国家自然科学基金项目(41071114);教育部人文社会科学研究青年基金项目(11YJC840051);江苏省高校自然科学基础研究项目(10KJB170005),江苏省高校优势学科建设工程资助项目

Research on city-size distribution and allometric growth in Jiangsu Province based on fractal theory

SUN Zai-hong1,2, YUAN Yuan2, WANG Ya-hua2, ZHANG Xiao-lin2   

  1. 1. School of Geographic and Oceanographic Science,Nanjing University,Nanjing 210093,China;
    2. School of Geography Science,Nanjing Normal University,Nanjing 210046,China
  • Received:2011-06-23 Revised:2011-11-06 Online:2011-12-20 Published:2011-12-20

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摘要： 以江苏省1996～2008年城市非农业人口和建成区土地面积为主要数据,借助分形地理学中的城市位序-规模分布法则和异速生长定律及其广义分形性质,对全省城市规模分布演化规律、结构容量和城市人口-面积异速生长标度指数、退化关系进行探讨。结果表明:全省城市体系发育较为健全,规模序列结构正处于集中向分散过渡的时期,大中城市成为城市化发展的主要承载空间;全省城市人口-面积异速生长关系在整体上呈现退化迹象,2001年以后异速生长关系由负转正;南京、苏州、徐州等市的异速生长系数明显高于其他地市,土地城市化快于人口城市化的现象较为突出,但两者关系是否不相协调仍值得深究。全省城市体系演化形成的复杂格局对走江苏特色的新型城市化道路提出了更高的要求。

关键词: 城市体系, 分形, 城市规模分布, 异速生长, 江苏省

Abstract: With the acceleration of urbanization,the evolution of the urban systems tends to be more complicated.Working on a major database of regional non-agricultural population,built-up land acreage of cities and counties in Jiangsu over 1996-2008,the study uses methods of rank-size rule,law of allometric growth and its multi-fractal property to analyze the fractal feature of city-size distribution,structural capacity,index scale and degeneration of population-area allometric growth.The results indicate that urban system of Jiangsu Province is now in good gear,its rank-size structure is experiencing a mutation from centralization to decentralization,large and medium-sized cities are the main supporting space for urbanization process.The allometric growth relationship between land and population is in trends of degeneration at provincial level,which turns negative to positive after 2001.Scale factors of allometric growth of Nanjing,Suzhou and Xuzhou have a mark significantly higher than those of other cities,indicating a faster spatial expansion compared with population growth in these cities.In the meantime,relationship between land and population needs further discussion.Complex patterns resulting from evolution of the urban system make higher demands for developing a new-type urbanization with its own characteristics in Jiangsu.

Key words: urban system, fractal, city-size distribution, allometric growth, Jiangsu Province