香樟枝和干材纤维形态特征的研究

Fiber morphological characteristics of the trunk and branch wood of Cinnamomum camphora Presl

将香樟树种的干材与枝材进行比较研究,为小径材、枝桠材等低等级的木材充分利用,有着十分重要的理论和实践意义。对香樟枝和干材的纤维形态特征进行分析研究,结果发现,枝和干材纤维平均长度、直径、胞腔径及纤维长宽比分别为1037、1060μm,18.946、20.162μm,12.813、13.086μm及56.827、55.422,两者在0.05水平上经t-检验差异不显著。枝和干材纤维双壁厚、壁腔比及柔性系数分别为6.260、7.074μm,0.532、0.650及0.669、0.635,两者在0.05水平上经t-检验差异显著。

Making fully use of the little diameter and branch wood has very important theoretical and practical meaning for making less of the contradictory between the wood supply and demand. The fiber morphological charac- teristics of the trunk and the branch wood of Cinnamomum camphora Presl are studied in this text. The results show that the fiber length, diameter, lumen-diameter and length-width ratio of fiber of the trunk and branch are 1 037 p,m and 1 060 p,m,18. 946 p,m and 20. 162 p,m,12.813 p,m and 13.086 p,m, as well as 56.827 and 55.422,the difference between them are not significant at 0. 05 level through t- test. The double-wall thickness, the wall thick- ness-lumen ratio and the lumen-diameter ratio to diameter of fiber are 6. 260 p,m and 7. 074 p,m,0. 532 and 0. 650, O. 669 and 0. 635 respectively, the difference between them are significant at 0. 05 level through t- test.