四川省城市体系等级规模结构分形研究
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摘要
等级规模结构是城市体系的三大结构之一,其重要特征是可以反映出城市在不同等级规模层次中的分布状况及城市人口集中或分散程度.运用分形理论,通过1997-2008年统计数据计算分析,发现四川省城市体系等级规模结构具有分形特征,满足位序—规模分布规律.研究表明:城市规模分布呈相对均衡,但并非理想状态,首位城市作用较强,大城市数量较多、分布分散,中小城市发育不全,人口有向少数大城市集中趋势.并据此提出了四川省城市体系等级规模结构的优化建议.
Rank-size structure is one of the three major structures of the urban system,and its characteristics can reflect the size of cities in different grades and levels in distribution and the concentration or dispersion of the urban population.In this paper,the fractal theory is used to calculate and analyze the statistical data of 1997-2008 and it is shown that the structure of Sichuan urban system has fractal characteristics,which meet the rank-size distribution.The results indicates that city size distribution of Sichuan is relatively balanced,but not ideal,the first city plays a great role,the large cities are numerous and scattered,small and medium cities are poorly developed,and the population tends to shift to and concentrate in large cities.Some suggestions are offered for the optimization of the tank-size structure of the urban system of Sichuan.
Rank-size structure is one of the three major structures of the urban system,and its characteristics can reflect the size of cities in different grades and levels in distribution and the concentration or dispersion of the urban population.In this paper,the fractal theory is used to calculate and analyze the statistical data of 1997-2008 and it is shown that the structure of Sichuan urban system has fractal characteristics,which meet the rank-size distribution.The results indicates that city size distribution of Sichuan is relatively balanced,but not ideal,the first city plays a great role,the large cities are numerous and scattered,small and medium cities are poorly developed,and the population tends to shift to and concentrate in large cities.Some suggestions are offered for the optimization of the tank-size structure of the urban system of Sichuan.
引文
[1]李志刚,唐相龙,李斌.陇东地区城镇等级规模结构的分形研究[J].人文地理,2004,19(2):22-23.
[2]邢海虹,刘科伟.基于分形理论对陕西城市体系等级规模分布研究[J].人文地理,2007,22(4):38-40,15.
[3]赵春艳.关于城市群等级规模结构问题的研究——以陕西为例[J].经济问题,2007(6):43-45.
[4]徐建华.现代地理学中的数学方法[M].北京:高等教育出版社,2002:392-393.
[5]陈彦光.城市化:相变与自组织临界性[J].地理研究,2004,23(3):301-311.
[6]许学强,周一星,宁越敏.城市地理学[M].北京:高等教育出版社,1997.
[7]刘继生,陈彦光.城市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.
[8]许学强,周一星,宁越敏.城市地理学[M].北京:高等教育出版社,2003:123-126,197-198.
[9]董斌.长江三角洲地区城市体系的结构研究[J].现代经济探讨,2006(4):79-83.
[2]邢海虹,刘科伟.基于分形理论对陕西城市体系等级规模分布研究[J].人文地理,2007,22(4):38-40,15.
[3]赵春艳.关于城市群等级规模结构问题的研究——以陕西为例[J].经济问题,2007(6):43-45.
[4]徐建华.现代地理学中的数学方法[M].北京:高等教育出版社,2002:392-393.
[5]陈彦光.城市化:相变与自组织临界性[J].地理研究,2004,23(3):301-311.
[6]许学强,周一星,宁越敏.城市地理学[M].北京:高等教育出版社,1997.
[7]刘继生,陈彦光.城市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.
[8]许学强,周一星,宁越敏.城市地理学[M].北京:高等教育出版社,2003:123-126,197-198.
[9]董斌.长江三角洲地区城市体系的结构研究[J].现代经济探讨,2006(4):79-83.
目录