Studies on Selection of Fire Resistant Tree Species for Subtropical Area of China

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

Studies on Selection of Fire Resistant Tree Species for Subtropical Area of China

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 fuzzy mathematics method, the fire-resistance of 12 tree species was put in order. Some of them such as Schima superba, Castanopsis hystrix, Myrica rubra have strong fire-resistance, Some tree species such as Machilus pauhoi, Mytilaria laosensis, Michelia macclurei, Schima sp., and Manglietia tenuipes are relatively strong at fire resistance, The rest such as Cunninghamia lanceolata and Pinus massoniana have weak fire resistance.