高海拔火炬松木材品质的研究

• 作 者: 廖克服 陈日希 潘辉 魏永平 张峰椿
• 机 构: 大田梅林国有林场,福建省林业科学研究院
• 出 处: 福建林业科技
• 发表日期: 1999年S1期
• 关键词: 用材树种 抗劈力 顺纹抗剪强度 气干密度 干燥性能 木素含量 力学性能指标 顺纹抗压强度 弦向 晚材

火炬松木材品质受环境影响较大，在高海拔条件下，其木材密度小，晚材率低，干燥性能较佳，力学性能指标较高，木材强度品质达高强度树种等级，纤维素和木素含量略低，含脂量偏高，材质比低海拔火炬松和马尾松均匀，适宜在高海拔地区栽植；其木材品质变化规律符合美国南方松木材变异性的一般规律，是良好的建筑和造纸用材树种。

Under the condition of high altitude, the wood quality of Pinus taeda is bigger, the density of wood is lower, the rate of late wood is lower, the drying performance is better, the mechanical property index is higher, and the intensity of wood quality reaches the grade of high-intensity tree species, cellulose and wood Slightly lower content of the content, the fat content is high, the material ratio of low altitude loblolly pine and pine are uniform, suitable for planting in the high altitude area; The wood quality change rule conforms to the general rules of southern american pine variability, is a good building and Paper timber species.