Self-organized criticality of forest fire in China

被引:80
作者
Song, WG [1 ]
Fan, WC [1 ]
Wang, BH [1 ]
Zhou, JJ [1 ]
机构
[1] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
self-organized criticality; cellular automata; forest-fire model; fire-safety science;
D O I
10.1016/S0304-3800(01)00383-0
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Self-organized criticality (SOC) of forest fire is studied from an analysis of a large series of forest-fire records from 1950 to 1989 in China. The time-invariant, scale-invariant characteristics of SOC of forest fire in China are analyzed in detail. The deviations between the occurrence frequency of very large fires and the power-law relation are explained by the forest-fire model with tree immunity (FFMTI). Actual forest-fire records are compared with the simulation results of a self-organized critical forest-fire model. It is shown that the forest-fire model applies well to explain the SOC characteristics of a forest fire. SOC characteristics have practical implications on forest-fire protection. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:61 / 68
页数:8
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