5种种源白桦木材干缩性的研究  

Wood drying shrinkages of Betula platyphylla five provenances.

作　　者：王淑娟[1] 鹿振友 王洁瑛[1] 李黎[1] 徐曼琼[1] 

机构地区：[1]北京林业大学森林工业学院,北京100083

出　　处：《北京林业大学学报》2001年第4期87-89,共3页Journal of Beijing Forestry University

基　　金："九五"国家科技攻关项目! (11 0 3 0 5 )"工业用材林木材材质材料研究"资助

摘　　要：该研究主要对 5种种源新培育速生白桦木材的弦向、径向、体积全干干缩率和差异干缩及弦向、径向、体积气干干缩率和差异干缩等 4个性状进行了测试 ,并根据测试结果进行了变异分析及方差分析 .结果表明 :据此可用来选育纵向干缩率小、差异干缩小。This study tested 6 drying shrinkages of white birch wood (Betula platyphylla) from plantations. The 6 drying shrinkages include tangential shrinkage, radial shrinkage, and volume shrinkage in oven and air dry conditions. Five birch provenances were selected as testing materials. Variance analysis indicates that we can select the good provenance for the drying shrinkages of white birch are very small, the variance is not great, and the dimension stability is good.

关 键 词：白桦 种源 干缩率 线性相关 木材 

分 类 号：S781.62[农业科学—木材科学与技术] S792.153[农业科学—林学]