江淮丘陵地带防火树种选择

在大量的野外调查测定和室内分析的基础上,应用回归和主成分分析、模糊聚类、多目标决策等手段和方法,对江淮丘陵地带15种针阔叶树种的抗火性能进行了排序、分类和评价.结果表明,依据15个树种的抗火性及经济性状可分为4类.即:Ⅰ类树种(抗火性很强)-木荷是皖南、大别山南坡及皖东部分地区的首选防火树种;Ⅱ类树种(抗火性强)-油茶、珊瑚树;Ⅲ类树种(抗火性较强)-甜槠、苦槠、石栎、青冈栎、茶树、交让木、小叶青冈、女贞等;Ⅳ类树种(抗火性弱)-马尾松、湿地松、杉木、香樟,这类树种不宜作防火树种,而是被保护的对象.

The suitable fire-resistant tree species in the hill terrain between the Yangtze and Huaihe river

The fire-resisting properties of 15 broad-leaf tree species in the hill terrain between the Yangtze and Huaihe river were ordered,classified and evaluated,based on field studies and inlab determination,by means of regression analysis,fuzzy cluster analysis and multi-proposed decision-making.The results showed that these species can be classified into 4 groups based on their fire-resisting properties and economic characteristics:Class I(the strongest resistance)-Schima superba,which is the most widely used as a fire-resisting tree species in the southern and eastern parts of Anhui and in the southern Dabieshan mountainous region.Class II(strong resistance)-Camellia oleifera,Class III(relatively strong resistance)-Castanopsis causpidata,C.sclerophylla,Lithocarpus glaber,Cyclobalanopsis glauca,Camellia sinensis,Danphniphyllum macropodum,Cyclobalanopsis myrsinaefolia,Ligustrum lucidum,etc.and Class IV(weak resistance)-Pinus massoniana,P.elliottii,China fir,camphor trees,which can not be applied as fire-preventing trees,and on the contrary,they should be protected.