湖北省百岁老人村地理分布空间结构特征

Feature of Area Distribution for Centenarian in Hubei

以湖北省为例,将有百岁及以上老人生活的村落定义为百岁老人村,引入空间结构分形等理论与方法对该省百岁老人村的地理分布空间结构特征进行研究。结果表明:(1)2010年,湖北省百岁老人村的空间分布范围较为广泛,总体呈现出"大分散、小集聚"的分布模式,在武汉江岸区、江汉区与钟祥市等县区形成多个百岁老人村热点区;(2)百岁老人村点系统的空间结构具有分形特征,在空间上呈相对分散格局,空间结构紧致性较弱,系统从中心点向周围点的密度衰减很慢;(3)百岁老人村点系统的容量维与信息维相差较大,说明百岁老人村在区域分割中呈不等概率分布态势,空间结构分形较复杂。

The village where centenarian live is called Centenarians Village,which feature is studied by fractal theory of space structure.The result is as follows：（1）in 2010,Centenarians Villages were widely distributed,with the model of＂wide disperse,small group＂,there are some hot areas of Centenarians Village in Anjiang,Jianghan of Wuhan and Zhongxiang;（2） space structure of Centenarians Village is with fractal feature,relative disperse pattern in space,space structure compactness is weak,the density declining from central point to all around is low;（3） the difference of capacity dimension and information dimension is great,accounting for that Centenarians Village is Unequal probability distribution situation in region segmentation,the space structure fractal is complex.