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森林火灾是危害森林的一大主要自然灾害，采用生物防火可以有效地控制特大森林火灾的发生。本文对广西大桂山区的木荷、火力楠、杨梅等１０种常绿阔叶树种和杉木、马尾松两种针叶树种的叶、小枝和皮的燃烧性能及其组成成分进行了测定，结果表明：（１）各树种均以叶的抗火性能最差，阔叶树种比针叶树种的抗火性能强；（２）热值、含水量、燃点和灰分含量是影响叶的抗火能力的主要指标。木质素含量和苯乙醇抽取物与总发热量有线性相关关系；（３）由多目标决策方法对１２种树的抗火性能综合排序得知，木荷、红椎、杨梅的抗火性强，润楠、米老排、火力楠、大桂山荷和木莲的抗火性中等，稠木、观光木的抗火能力较弱，杉木、马尾松的抗火能力强。
Forest fires are one of the major natural disasters that endanger forests. Using biological fire prevention can effectively control the occurrence of super-large forest fires. In this paper, the burning properties and components of leaves, twigs and barks of 10 species of evergreen broad-leaved tree species, such as Schima superba, Lonicera capensis and Chinese bayberry in Dagui Mountain area of Guangxi Province, were measured. The results showed that: (1) The fire resistance of leaves was the worst among all tree species, and the fire resistance of broadleaf species was better than that of coniferous species. (2) The calorific value, water content, light and ash content were the main indexes that affected the fire resistance of leaves. Lignin content and benzene ethanol extract and the total calorific value has a linear correlation; (3) by multi-objective decision-making method of fire resistance of 12 kinds of trees can be ordered comprehensively sorted, wood, red vertebral, red bayberry fire resistance Strong, Run Nan, rice veteran row, Nan Nan, Dagui Hill and Mangliese fire resistance medium, thick wood, sightseeing wood fire resistance is weak, fir, masson pine fire resistance.