摘要
以安徽琅琊山天然散生刺楸［Ｋａｌｏｐａｎａｘｓｅｐｔｅｍｌｏｂｕｓ（Ｔｈｕｎｂ．）Ｋｏｉｄｚ．］正常生长的和树干有１０°倾斜的各采一株为材料，研究应拉木材性与正常木材性的差异。结果表明：应拉木可分为三区：即与髓心较远的应拉区（Ｔ区），与髓心较近的对应区（Ｏ区）和与Ｔ区和Ｏ区相连的两侧区（Ｓ区）；应拉木所含大量胶质木纤维主要分布在Ｔ区，Ｔ区木纤维组织比量和基本密度均大于Ｓ区和Ｏ区，但顺纹抗压强度最低，干缩系数最大。应拉木三区与正常木材性相比，除木纤维组织比量外，其余材性指标均劣；应拉木Ｓ区材性与正常木材性稍接近一些，但差异还较大。
A normal wood and a tension wood (lean angle of the stem was 10°) were drawn from natural stands of Langya mountains, Anhui province,whose wood properties were analyzed and compared. At a result,three portions in tension wood were divided, which were tension wood (T), far away from the pith, opposite wood (O),near the pith, and flank side wood (S), between T and O. Compared with the properties of S and O, more quantities of glutinous fiber, higher fiber tissue propotion, lower compressive strength parallel to the grain, larger shrinkage coefficent and higher basic density were found.Apart from fiber tissue propotion,the other properties of normal wood were better than that of three portions in tension wood. The properties of normal wood were partly samilar to that of S, but the difference between them were still very large.
出处
《林业科学》
CAS
CSCD
北大核心
1996年第5期470-475,共6页
Scientia Silvae Sinicae
关键词
刺楸
应拉木
正常木
材性比较
Kalopanax septemlobus,Tension wood,Normal wood,Wood propertiescomparasion
