| 自然灾害的自相似性质 |
| |
| 引用本文： | 杜兴信.自然灾害的自相似性质[J].灾害学,1995,10(2):1-6. |
| |
| 作者姓名： | 杜兴信 |
| |
| 作者单位： | 陕西省地震局 |
| |
| 摘 要： | 本文分析了多种自然灾害的致灾因子和致灾损失的频次—大小关系，结果表明，普遍服从幂指数分布律，表明存在自相似性和可用分数维度量。地震和洪水等突发性灾害及其造成的损失自相似最明显，分数维可在２～３个量级区间成立。不同文种、致灾因子和致灾损失的分数维值似与成灾机理、影响因子的复杂程度有关．
|
| 关 键 词： | 自然灾害 相似性 分数维 |
SELF-SIMILAR FEATURE OF NATURAL DISASTERS |
| |
| Du Xingxin.SELF-SIMILAR FEATURE OF NATURAL DISASTERS[J].Journal of Catastrophology,1995,10(2):1-6. |
| |
| Authors: | Du Xingxin |
| |
| Institution: | Seismological Bureau of Shaanxi Province |
| |
| Abstract: | This paper analyzed the frequency-magnitude relationships of the disasters and loses for the various disasters and found that they commonly follow the power laws, indicating existence of self-similar feature and feasibility of fractal measurement.The sudden disasters such as earthquake and flood and its loses have more obvious selfsimilar features with the fractal dimensions within 2-3 order intervals. The fractal dimension values of different disasters, factors causing disaster and loses seem to relate to the complexity of mechanism of disaster production and the influence factors. |
| |
| Keywords: | Natural disaster Similarity Fractal dimension |
| 本文献已被 CNKI 维普 等数据库收录！ |
