论文部分内容阅读
森林火灾按其燃烧物和燃烧部位的不同,通常可分为地表火、树冠火和地下火3种。树冠火是指在林冠层燃烧和蔓延的火,通常与地表火同时发生。树冠火发生数量不多,但其燃烧温度高、火强度大、蔓延速度快,对森林的破坏性极大。从树冠火的发生机制、蔓延模型、扑救方法、预防和减弱树冠火发生及蔓延危险性的措施几方面对当前国内外树冠火的研究进展进行了综述,并对今后的研究方向进行了展望。
Forest fires can be divided into three types: surface fire, canopy fire and underground fire, according to the difference of their burning products and burning parts. Crown fire refers to the fire burning and spreading in the canopy and usually occurs simultaneously with the surface fire. The occurrence of crown fire is small, but its combustion temperature is high, the fire intensity is large, the spread speed is fast, and the destruction of the forest is extremely great. The research progresses of canopy fire at home and abroad are summarized from the aspects of the mechanism of fire, the model of spreading, the method of fire fighting, the measures to prevent and weaken the occurrence of fire and the risk of spread of tree fire. Finally, the prospect of future research is prospected.