THE RESEARCH OF GROUP URBAN OUTER SPATIAL FORM FRACTAL CHARACTERISTICS
以武汉为例，用分形理论研究多中心组团城市外部空间形态的自相似性，分析50年间分形维数的演变规律及扩张模式，对城市规划和建设有参考价值。
Quantitative research urban outer spatial form is importance tache of urban constructing and planning. An urban outer spatial form characteristic, which has no-rule and having self-similarity, is researched by means of fractal theory based on GIS, taking Wuhan city for example, the fractal characteristic of multi-core and group urban spatial form is analyzed, and the evolutive rule of the fractal dimension during 50 years in Wuhan city is researched, and the reason of the fractal dimension's change in different stages and the mode of urban expansion is discussed, and finally, the view-point is put forward that it is the important approach in the future to integrate multi-theory, multi-technique method to research urban spatial form deeply.