摘要
分析和讨论了影响马尾松木材横向液体渗透性及其各向异性的机理 .对马尾松木材的径向液体渗透性和弦向液体渗透性进行了测量 .结果表明 ,马尾松木材的径向液体渗透性大于弦向液体渗透性 ,并且 ,马尾松木材的径向液体渗透性和弦向液体渗透性都是从边材向心材逐渐减小 ,并随着含水率的下降而升高 .其原因是径向液体流动的主要通道是木射线和水平树脂道 ,弦向主要是管胞壁和交叉场上的纹孔 .
Radial and tangential liquid permeability of Masson pine timber were measured respectively. The results show that the radial liquid permeability is greater than the tangential liquid permeability. At the same time the radial and tangential liquid permeability of Masson pine wood decreases gradually from sapwood to heartwood and increases with the decrease of moisture content. The mechanism affecting the wood liquid permeability and its different properties was also discussed and analyzed. The main liquid flow paths in the radial direction are wood rays and horizontal resin canals, while the liquid flow path in the tangential direction is non-aspirated pits on trachea walls and cross fields. The liquid permeability increases with the decrease of moisture content due to the increase of void space in wood.
出处
《中南林学院学报》
CSCD
2001年第4期40-43,共4页
Journal of Central South Forestry University
