森林火灾是灾害性的复杂燃烧现象,通常分为地下火、地表火和树冠火。地下火在地下可燃物诸如泥煤、有机土壤中以焖烧极缓慢地蔓延;树冠火是火焰锋在树木顶部推进,特点是火强度大,蔓延迅速,它是大火灾环境中活跃的火行为;地表火则是在森林地表植被诸如荒草、灌木上蔓延,是最常见的林火现象。 Forest fires are catastrophic and complex combustion phenomena and are usually classified as underground fire, surface fire and canopy fire. Underground fire spreads very slowly in submerged combustibles, such as peat, in organic soils; canopy fire is a flame front advancing through the top of a tree characterized by a large fire intensity and rapid spread, which is an active fire behavior in a large fire environment ; Surface fire is the forest surface vegetation such as weeds, shrubs spread, is the most common forest fire phenomenon.