大叶山杨与山杨木材比较解剖与材性分析  

Analysis on the Wood Comparative Anatomic and Properties of Populus davidiana Dode and Populus davidiana var. macrophylla

作　　者：刘君良 戚继忠[1] 张立平 赵凤兰 

机构地区：[1]吉林林学院资源环境系,吉林吉林132013 [2]吉林制材厂,吉林吉林132001 [3]吉林造纸厂,吉林吉林132002

出　　处：《吉林林学院学报》1999年第4期199-202,共4页

基　　金：吉林省教委资助

摘　　要：运用对比分析的方法对山杨（ Ｐｏｐｕｌｕｓ ｄａｖｉｄｉａｎａ Ｄｏｄｅ） 和大叶山杨（ Ｐ．ｄａｖｉｄｉａｎａ ｖａｒ．ｍａｃｒｏｐｈｙｌｌａ Ｇ．Ｌ．Ｚｈａｎｇ） 木材的解剖特征、纤维形态等进行了较详细的观察、测定与分析，对２ 种木材的气干密度、干缩系数、顺纹抗压强度、顺纹抗拉强度、抗震强度、抗弯强度、抗弯弹性模量、冲击韧性、硬度、抗劈力强度等进行了对比研究；对２ 种木材的冷水抽出物、热水抽出物、质量分数为１ ％ 的ＮａＯＨ 抽出物、乙醚抽出物、苯醇抽出物、ｐＨ 值、纤维素含量、半纤维素含量、木素含量等化学成分进行了测定．结果表明，２ 种木材解剖特征相近，大叶山杨的力学强度值略高于山杨，抽出物质量分数比山杨低。The wood anatomical feature and fibrous shape were measured and studied by the method of comparative analysis.It is also measured and studied for the air dry density,coefficient of shrinkage,physic mechanical properties,chemical composition of Populus davidiana var. macrophylla. As a result, Populus davidiana var. macrophylla and Populus davidiana is similar in anatomical feature.Cell wall materials content and mechanical index of Populus davidiana var. macrophylla is higher than Populus davidiana.

关 键 词：大叶山杨 解剖构造 力学强度 山杨 木材 

分 类 号：S792.114[农业科学—林木遗传育种]