Studies on Fire Resistance Forest Species

Fire is the primary one of the facts of deforestation. Although in recent years the level of forest management and technique of fire suppression have been improving, fire fighting force has been strengthened, the area of fire is not apparently decreased. Using biological fire resistant technique can effectively prevent the campaign fire. In this paper, fire resistant ability and component about 12 tree species, in mountain area of Daguishan, Guangxi Zhuang autonomous region, have been analyzed in laboratory. The results from this study indicated as the followings: (1) For all the tree species, fire resistant ability of leaf is more susceptible than that of branches and bark, and the broadleaf tree species are stronger than coniferous tree species in fire-resistant. (2) Calorific value, water content, combustion temperature and ash content are main indexes to affect fire resistantivity. Heat value relates to lignin content and benzene-ethanol extractive content linearly.