作　　者： (郭金铭）; (袁天凤）;

机构地区： 内江师范学院地理与资源科学学院,四川内江641199

出　　处： 《内江师范学院学报》 2017年第8期91-97,共7页

摘　　要： 利用第四、五、六次人口普查数据,以ArcGIS、GeoDA等软件为平台,采用空间自相关分析法,对重庆市1990-2010年人口老龄化空间分布特征进行深入分析.结果表明:重庆市老龄化水平分布的绝对差异、相对差异经历了较为不均衡向均衡发展,然后空间差异再扩大的过程;空间聚集性较强,在时序上有"高—低—高"的波动变化特征;老龄化重心在20年间向东北移动7561.642米;空间格局经历了剧烈变动,高高聚集型由主城核心区向外围呈"环形"扩散特征,低低聚集型逐渐填充了高高聚集型"环形"中心空缺区域,东北翼、东南翼萎缩至边缘县域;主城核心区由1990年的热点区转变为2010年的冷点区,东北翼、东南翼由1990年的冷点区转变为不显著区,垫江、涪陵、潼南等形成热点区. Based on the data from the fourth,fifth and sixth population censuses of Chongqing City,methods of spatial auto-correlation analysis and software like ArcGIS and GeoDA were adopted to analyze the spatial distribution characteristics of aging population in Chongqing City from 1990 to 2010.Results showed：The absolute and relative differences of distribution of aging level in Chongqing City experienced a process from a relatively imbalanced development to a balanced development to the development of a re-widening spatial deference.Spatial aggregation was strong and the characteristic of high-low-high fluctuation change＂＂was found in its time sequence.The focus of aging has moved 7,561.642 mtowards the northeast in 20 years.Spatial pattern witnessed dramatic changes;high-high aggregation trend takes a＂ring-shaped＂diffusion from the core area of Chongqing City to its periphery;low-low aggregation gradually fills the vacancy of＂ring-shaped＂center of high-high aggregation;northeast and southeast wings shrank to the marginal counties.The core area of the City proper has transformed from a hot spot area in 1990 to a cold spot area in 2010;northeast and southeast wings have transformed from cold spot areas in 1990 to inapparent areas;Dianjiang,Fuling,Tongnan and so on are becoming hot spot areas.

关 键 词： 重庆市 人口老龄化 空间分布