摘要
研究了不同种群白桦木材密度、抗弯强度、硬度等主要力学性质、结果表明：种群间木材力学性质存在显著差异．种内材性变异较大。在白桦材质改良时．种群间和种群内个体的选择都是必要的；材质综合评估表明．内蒙古金河、吉林露水河白桦种群材质最优．可作优良种群进行定向培育。
Different birch provenances were sleeted as testing material. Their wood density. intensity of counter -bending and hardness have been studied. Variance analysis showed that distinct difference existed among these provenances; the variance of wood properties was greater within each provenance; the selection was necessary within a provenance and among provenances in birch wood improvement.According to wood qualities obtained. Jinhe of inner Mongolia and Lushuihe of Jinn Province might be the best provenances. which could be used as fine provenances for oriented cultivation.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1999年第2期65-67,共3页
Journal of Northeast Forestry University
基金
国家"九五"科技攻关项目
关键词
白桦
种群
木材力学性质
Birch
Provenance
Wood mechanical property
