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Fire disaster is the primary one of the facts of deforestation. Although in recent years the level of forest management and technique for fire suppression have been improving and fire fighting force has been strengthened, the area of fire has not been decreased obviously. 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-resistance. (2) Calorific vdlue, water content, combustion temperature and ash content are main indexes affectingfire resistance. Heat value relates to lignin content and benzene-ethanol extractive content linearly. (3) By means of the
Fire disaster is the primary one of the facts of deforestation. The area of fire has not been decreased obviously. Although in recent years the the level of forest management and technique for fire suppression have been improving and fire fighting force has been strengthened obviously. 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-resistance. (2) Calorific vdlue, water content, combustion temperature and ash content are main symptoms affectfire resistance. Heat value related to lignin content and benzene-ethanol extractive content linearly. ( 3) By means of the