基于分形理论的安徽省城镇体系结构研究
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摘要
基于对分形理论的理解,分析研究了安徽省城镇体的系结构特征,得出安徽城镇体系的存在着分形特征的结论.规模结构方面,区域内人口分布比较均衡,中间位序城市较为发育,首位城市垄断功能相对较弱,小城镇发展不足.空间结构方面,聚集维数反映以芜湖为重心的城镇体系空间分布最为紧凑,蚌埠次之,而合肥最为松散.网格维数和关联维数都表明安徽城镇体系主要是沿线、沿江分布,城镇间空间相互作用不强,网络均衡性还有待于提高.据此提出安徽省城镇体系优化的几点建议.
Based on fractal theory,the scale structure and spatial structure of the urban system of Anhui Province are investigated.From the perspective of scale structure,there is a relatively balanced population distribution in this area.Cities of intermediate rank are relatively developed while the monopoly of primate cities is relatively weak,and small cities are less developed.From the perspective of spatial structure,the aggregation dimension reflects that the urban system centering around Wuhu City shows a most compact spatial distribution,Bengbu City comes second while Hefei City is relatively loose.At the same time the grid dimension and the correlation dimension shows that the urban system of Anhui Province is mainly along the Yangtse River.That's to say,it develops in a line.As a result,the spatial interactions among cities are not strong and the network balance needs further improvement.In the end,based on the above analysis,some suggestions are put forward.
Based on fractal theory,the scale structure and spatial structure of the urban system of Anhui Province are investigated.From the perspective of scale structure,there is a relatively balanced population distribution in this area.Cities of intermediate rank are relatively developed while the monopoly of primate cities is relatively weak,and small cities are less developed.From the perspective of spatial structure,the aggregation dimension reflects that the urban system centering around Wuhu City shows a most compact spatial distribution,Bengbu City comes second while Hefei City is relatively loose.At the same time the grid dimension and the correlation dimension shows that the urban system of Anhui Province is mainly along the Yangtse River.That's to say,it develops in a line.As a result,the spatial interactions among cities are not strong and the network balance needs further improvement.In the end,based on the above analysis,some suggestions are put forward.
引文
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[15]许学强,周一星,宁越敏.城市地理学[M].北京:高等教育出版社,2000:197-198.
[16]那伟,刘继生.吉林省城市体系等级规模结构研究[J].人文地理,2007,22(5):50-54.
[2]岳文泽,徐建华,颉耀文.甘肃城镇体系结构及其分形模型研究[J].地域研究与开发,2004,23(1):16-20.
[3]岳文泽,徐建华.分形理论在人文地理学中的应用研究[J].地理学与国土研究,2001,17(2):51-56.
[4]徐建华.现代地理学中的数学方法[M].第2版.北京:高等教育出版社,2002:392-408.
[5]聂芹.山东省城市体系等级规模结构研究[J].城市发展研究,2009,16(7):18-22.
[6]李后强,艾南山.具有黄金分割特征和分形性质的市场网络[J].经济地理,1992,12(4):1-5.
[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]刘继生,陈彦光.城市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):171-178.
[9]陈涛,刘继生.城市体系分形特征的初步研究[J].人文地理,1994,9(1):25-30.
[10]伍世代,王强.福建省城镇体系分形研究[J].地理科学,2007,27(4):493-498.
[11]李传武,张小林,吴威.基于分形理论的江苏沿江城镇体系研究[J].长江流域资源与环境,2010,19(1):1-6.
[12]车前进,曹有挥,马晓东,等.基于分形理论的徐州城市空间结构演变研究[J].长江流域资源与环境,2010,19(8):859-865.
[13]刘承良,熊建平,张红.武汉都市圈城镇体系空间分形与组织[J].城市发展研究,2007,14(1):44-51.
[14]凌怡莹,徐建华,岳文泽,等.长江三角洲地区城市体系的分形研究[J].华东师范大学学报:自然科学版,2004(3):87-92.
[15]许学强,周一星,宁越敏.城市地理学[M].北京:高等教育出版社,2000:197-198.
[16]那伟,刘继生.吉林省城市体系等级规模结构研究[J].人文地理,2007,22(5):50-54.
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