【摘要】 对人工林杨树木材小×钻4707#杨的纤维长度、纤维直径、纤维壁厚等纤维形态特征指标进行了系统的测试。结果表明:在径向上,木材纤维长度、纤维宽度的变异都是自髓心向外开始逐年增大,此后再逐渐减小或保持平稳;而纤维壁厚变化幅度不大。纤维形态各指标的径向变异均要大于轴向变异。更多还原

【Abstract】 In this study,key fiber morphological features,such as fiber length,fiber width,cell wall thickness of Populus xiaozhuannica were determined and analyzed.The results were as follows:in the radial variance:from pith outward,the fiber length,the fiber width decrease gradually or level off;while the cell wall width mostly fluctuate above or below an axis.The radial variance of wood properties all above is larger than that of the axial variance.更多还原