防火树种着火特性的研究

Studies on Ignition Properties of Fire Prevention Trees

对木荷、火力楠、阿丁枫等树种着火特性的研究结果表明：防火树种的着火温度均高于针叶树，其中以木荷鲜叶的着火温度为最高，分别比杉木和马尾松高５８．２℃和７４．７℃；树叶的着火感应周期与炉温的关系可用Ｌｏｇｉｓｔｉｃ方程拟合；影响树叶着火温度的主要内在因子为含水率、苯－乙醇抽取物含量及挥发份发热量等．

Theis paper research into the ignition properties of some fire prevention broad-leaved trees such as Schima superba, Michelia macclurei and Altingia chinensis and some conifers such as Cunninghamia lanceolata and Pinus massoniana, the results showed that the ignition temperatures of fire prevention broad-leaved trees were higher than those of conifers, the most highest one was Schima superba. The relationship between ignition response period of tree leaves and furnace temperature could be simulated by Logistic equation. By multivariate regression analysis, the results indicated that the main internal factors that influenced ignition temperatures of tree leaves included moisture content, phenethyi-alconhol extract content and thermal unit of volatile.