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森林火灾系统是和自然、社会以及经济发展息息相关的的复杂系统.森林火灾的自组织临界行为也是复杂科学的重要研究领域.森林火灾模型的幂律分布,很好地揭示了森林火灾系统自组织临界性,进一步自组织临界行为研究有利于帮助了解森林火灾系统.研究一个简单的森林火灾模型,通过数值模拟得到了很好的“频率-尺度”分布,模型很好的满足有限尺度效应.引入异质性和风向因素,来讨论和原初模型的“频率-尺度”分布差别,给出了平均过火面积和控制参数的变化关系.模型的结果对如何控制森林火灾提供了很好的建议.
The forest fire system is a complicated system that is closely related to the natural, social and economic development.The self-organized critical behavior of forest fire is also an important research field in complex science.The power law distribution of the forest fire model reveals well that the forest fire system self-organization The study of criticality and further self-organized criticality helps to understand the forest fire system.A simple forest fire model is studied, and a good “frequency-scale” distribution is obtained through numerical simulation. The model satisfactorily satisfies the finite-scale effect The heterogeneity and wind direction were introduced to discuss the “frequency-scale” distribution difference with the original model, and the relationship between the average over-fire area and the control parameters was given.The results of the model provided a good guide to how to control the forest fire Suggestions.