合肥城市人口空间分布变化特征研究

利用1978、1991、2000和2004年人口统计数据和城市用地现状图,在ArcGIS8.3软件支持下,以街道和社区为研究单元,对合肥市人口增长的空间差异和人口空间分布形态变化特征进行了可视化分析.结果表明,合肥市目前仍然是单核心城市,城市化正处于由早期阶段向成熟阶段转变时期;城市人口增长经历了从1978年以后的均衡增长到集聚增长模式的转变,2000年以来则呈现出扩散增长的态势;人口空间分布逐渐由1978年前的"风扇型"分布形态转变为"同心圆"式分布形态;人口郊区化趋势初步显现.

Study on Spatial Distribution Feature of Urban Population of Hefei, China

Using the statistical population data and the city land use map of Hefei, respectively in 1978, 1991, 2000 and 2004, we analyze the spatial distribution difference of population increasing and the spatial distribution change of population on the basis of spatial cell with street and community with help of ArcGIS 8.3. The result shows that Hefei is still a single core city up to now, and it is being in the stage from the early immature to mature. Its city population passed by the transformation stage from the balanced to the centralized increasing since 1978. However, the diffused increasing is emerging since 2000. Additionally, the spatial distribution shape is transforming gradually from the fan-shaped before 1978 to the concentric circle-shaped at present. And the tendency with population-suburbanized appears preliminarily.