论文部分内容阅读
基于区域自然灾害发生的随机性和不确定性 ,运用分形、混沌理论 ,对新亚欧大陆桥新疆段近 38年的环境灾害受损次数进行了时空分维特征研究。结果表明陆桥新疆段受损状况不仅在时间序列上具有自相似性 ,其容量维 Df在 0 .830 2～ 1 .437之间 ,而且在空间序列上也具有自相似性 ,存在明显分维结构 ,其信息维 D1在 0 .0 997～ 0 .1 2 72之间。灾害严重区段的容量维值较大 ,并且容量维值越大 ,灾害事件中等级的复杂程度就越高 ,这一特征将有助于认识灾害发生规律和动力学特征。
Based on the randomness and uncertainty of regional natural disasters, fractal and chaos theory are used to study the spatial and temporal characteristics of damage caused by environmental disasters in the recent 38 years of Xinjiang-Eurasia Continental Bridge in Xinjiang. The results show that the damage status of the land bridge in Xinjiang is not only self-similar in time series, but also its capacity dimension Df is between 0.8302 and 1.437, and it also has self-similarity in spatial sequence and obvious fractal dimension , The information dimension D1 is between 0.0997 ~ 0.1272. In the serious disaster zone, the capacity dimension value is larger, and the larger the capacity dimension value is, the higher the level complexity in the disaster event is. This feature will help to understand the regularity and dynamics of disasters.