基于信息熵的武汉城市土地利用空间结构变动分析

Study on the Driving Forces of Changing the Urban Land-Use Spatial Structure Basing on Information Entropy in Wuhan

借助城市土地利用空间结构的信息熵和均衡度概念,揭示了武汉城市在20世纪90年代土地利用结构的空间变化规律,得出土地利用职能类型收缩、城市用地趋向不均衡发展态势的结论。利用主成分与灰色关联相结合的方法找出影响武汉城市土地利用空间结构变动的主要动力因子,它们分别是城市福利和城市社会结构变化推动因子、城市产业结构变化拉动因子和城市建设与改造压力因子,其中后两个因子是驱动城市土地利用空间发生变化的最显著性因子。

On the basis of the information entropy and equilibrium degree of urban land-use spatial structure,the authors analyzed the rule of change of urban land-use spatial structure in Wuhan from 1990 to 2000,which the types of land-use were diminishing and urban land-use was not equilibrium.The driving forces were found using FAM and GRM,which were the driving factor of city welfare and social structure,the towing force of city industrial structure and the pressing force of city construction and reconstruction.Additionally,the later forces were more significant.