The factor analysis method applied into the flammability of tree species

Based on the data of six experiments on the physicochemical properties of fifty joe irrigation species´ branchlets, comprehensively evaluated the flammability of the tree species in XiaoXingAn Ling region by the R r-mode factor analysis method. Analyzed the interaction among six physicochemical properties of the fifty tree species, and picked up four main factors to analyze. The results showed that the first and second main factors are the main factor to impact the flammability of tree species, including Benzene ethanol extraction objects, calorific value, airing moisture content and absolutely dry moisture content. The third and fourth main factors are secondary factors to impact the flammability of tree species, including ash content and lignin. Comprehensively evaluated the flammability of tree species according to the four main factors´ value. The result showed that the fire-retardant tree species are Walnut Chinese catalpa, Northeast China ash, HuangBo, The fire-retardant tree species could be considered as the fire protection tree species.