摘要
采集同一立地条件柳蝙蛾危害的幼龄水曲柳,将其木材分4组：健康株、危害1a化学防治后愈合株、柳蝙蛾危害1a未防治株、危害3a以上的水曲柳。对危害部位进行解剖学、物理学实验,结果表明：柳蝙蛾对水曲柳木材的密度、硬度、胞壁率、年轮宽、纤维长度几个指标均有不同程度的影响。化学防治后1a密度这一指标恢复正常水曲柳的密度；年轮宽在被害后第三年才能恢复；对硬度的影响在以后的3a仍十分明显,纤维长度同硬度影响相近。
Manchurian ash （Fraximu mandshurica） juvenile wood was used to study the damage of Phassus excrescens to the wood properties. Manchurian ash wood cut from the same site was divided into four groups： healthy juvenile wood, cured wood by chemical control after damaged by P. excrescens for one year, wood without chemical control after damaged for one year, and wood damaged for more than three years. The wood properties of damaged parts of wood were analysed by anatomy and physics experiments. Result showed that wood density, hardness, cell wall percentage, growth ring width, and fiber length are all influenced by P. excrenscens to various extents. Density of cured wood by chemical control restores, after damaged for one year, growth ring width recovers after three years, while the influences of P. excrescens on hardness and fiber length of wood are still obvious after three years.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2006年第3期13-15,共3页
Journal of Northeast Forestry University
关键词
柳蝙蛾
水曲柳
木材性质
化学防治
Phassus excrescens
Fraxinus mandshurica
Wood properties
