37种针阔树种抗火性能及其综合评价的研究

STUDIES ON THE FIRE-RESISTANCE OF 37 SPECIES OF CONIFEROUS AND BROADLEAF TREES AND IT'S APPRAISAL

对福建３７个针阔树种鲜叶含水率、粗脂肪、粗灰分、ＳｉＯ２、挥发油含量和燃烧热、燃点、燃烧速度等１０个因子进行测试，并应用Ａ．Ｉ．Ｄ．方法将３７个树种依因子的不同取值范围划分为６个抗火性能等级。其中棕榈、火力楠等４个树种为一级，抗火性能最强：毛栲、木荷等９个树种为二级，抗火性较强：格氏栲、丝栗栲等１５个树种为三级；抗火性能最差的六级是马尾松、侧柏等３个树种。研究结果揭示了南方主要针阔树种抗火性规律，也为防火林带树种选择提供了理论依据。

Through the measure of moisture content,crude fat,crude ash,silica,volatile oil,burning point,combustion heat,burning speed, etc.,of the leafand the use of the method of A.I.D.,37 species of coniferous and broadleaf trees are divided into six grades according to their fire-resistance property.The four species including Trachycarpus tortunei,Michelia macclurei var.Sablbnea,etc.,are in the first grade,their fire-resistance property are thebest.The nine species belong in the second grade.Pinus massoniana,Platycladus orientalis and Cryptomeria fortunei belong in the sixth grade,their fireresistance property are the worst.The results as above-mentioned finally indicate the fire-resistance regulation of the main coniferous and broadleaf treesin South China and provide the theoretical evidence for the selection of fireprevention tree species.