三种阔叶树枝桠材应拉木和对应木的解剖特征及材性的研究  

Study on the Anatomical Features and Properties of Tension Wood and Opposite Wood of Branches of Three Hardwoods

作　　者：陈承德 黄日明 林元辉[2] 刘文彬[2] 

机构地区：[1]闽西职业大学,龙岩364021 [2]福建省林业厅

出　　处：《福建林业科技》1999年第3期7-12,共6页Journal of Fujian Forestry Science and Technology

基　　金：福建省林业厅下达项目

摘　　要：通过对３ 种阔叶树 （米槠、木荷、拟赤杨） 枝桠材的应拉木和对应木的解剖特征及材性的观察和试验，并与正常干材比较， 结果表明： 它们在纤维、导管的长度、宽度、纤维次生壁 Ｓ２ 层纤丝角、化学成分、纤维素相对结晶度、密度、吸水性、涨缩性以及顺纹抗压强度、抗弯强度及其弹性模量等都存在显著差异。By studying the tension Wood and opposite wood of three hardwood branches and compared with their normal stemwoods,the results show that there are marked differences among these three tissues in length and width of fiber and vessel,in s 2 layer′s microfibril angles of fiber secondary wall,in chemical composition,in relative crystallinity of cellulose,in density,in water absorption,in shrinkage and swell,in parallel to grain compression strength,in bending strength and its modulus of elasticity.

关 键 词：阔叶树枝桠 应拉木 对应木 正常干材 解剖特征 

分 类 号：S781.2[农业科学—木材科学与技术]