The flow of disasters emergency reflects evolution of forests disasters emergency with time, emergency system reflects the space combination mechanism the elements of forests disasters emergency.
应急流程体现了林区灾害应急随时间演变的过程，应急系统体现了林区灾害应急要素的空间组合机制。
The main content of the paper comprises:(1) The basic theory analysis supporting the evolution of Mass Emergency and the constructing research of the emergency preplan.
论文内容主要包括：（1）支撑突发群体事件演化和应对预案构建研究的基础理论分析。
The main content of the paper comprises:(1) The basic theory analysis supporting the evolution of Mass Emergency and the constructing research of the emergency preplan.
论文内容主要包括：（1）支撑突发群体事件演化和应对预案构建研究的基础理论分析。
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