Abstract:

Through the measure of moisture content, crude fat, crude ash, silica, volatile oil, burning point, combustion heat, burning speed, etc., of the leaf and 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 fortunei, Michelia macclurei var.Sablbnea, etc., are in the first grade, their fire-resistance property are the best.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 trees in South China and provide the theoretical evidence for the selection of fireprevention tree species.

Key words: Fire-resistance, Coniferuos and broadleaf trees species, Method of A. I. D.