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采用分形理论中的网格维数法对1985、2000、2014年三个时期剑川县主城区应急避难场所的空间分布特征及相关维数进行测算,得出应急避难场所不同时期空间分布的容量维和信息维。研究发现:(1)剑川县城市应急避难场所的空间演化由集中分布逐步向均衡分布发展;(2)剑川县城市应急避难场所空间分布经历了由不符合分形结构特征到完全符合分形结构特征的过程。
The fractal theory grid dimension method was applied to calculate the spatial distribution characteristics and related dimensions of the emergency shelters in main districts of Jianchuan County during 1985, 2000 and 2014, and the spatial distribution capacity of emergency shelters in different periods was obtained Peacekeeping information dimension. The findings are as follows: (1) The spatial evolvement of emergency evacuation sites in Jianchuan County evolves gradually from a centralized distribution to a balanced distribution; (2) Spatial distribution of emergency evacuation sites in Jianchuan County has experienced a change from a nonconforming fractal structure to a full compliance with fractal structure Characteristics of the process.