苏州地区城市化空间格局及演化分析

基于苏州地区1984-2005年的6个时相的卫星遥感数据,从城镇实体地域扩展的视角,通过城市化强度指数,运用全局和局域空间自相关测度等方法,分析了1980年代以来苏州地区城市化强度的时相性变化、空间集聚特征的演化,以及城市化"热点区"和"冷点区"的空间分布格局等.分析得出,1980年代以来,随着苏州地区的城市化进程,其城市化格局的空间集聚性逐渐减弱;城市化发展的高值簇即"热点区"呈现出较明显空间演化和跃迁的特征;苏州地区城市化过程中的全局层面的多因素驱动、"热点"轮换和局域层面的中心辐射与梯度推进是并存的.

The spatial pattern and evolvement of Suzhou urbanization

Based on the satellite remote sensing data of six phases from 1984 to 2005 in Suzhou area,this paper,from the point of view of urbanization expansion,analyzes using some methods such as urbanization intensity index,global or local spatial association measurement etc.the periods changes and the evolution of spatial agglomeration characteristic in the process of urbanization,as well as the spatial distribution pattern of the "hot" districts and the "cold" spots of urbanization in Suzhou from 1980s.It is concluded that since 1980s the spatial agglomeration of Suzhou urbanization pattern weakens gradually,that the high-value clusters("hot spots") of urbanization development presents obvious features of spatial evolution and leap,and that the multi-factor driving and the trend of hot spot's rotation in global aspects,as well as the central radiation and grade process in local aspects are all coexistence in the process of Suzhou urbanization.