<正>对处于生长期的异龄毛竹的纤维壁厚变化进行了研究。结果表明:毛竹的纤维壁厚由竹黄至竹青逐渐增至最大,然后略有减小;同竹层微管束的纤维壁厚变异性不显著;异龄竹对应部位纤维壁厚随竹龄的增加呈对数形式增长,且低龄竹的壁厚增长速度较快,至7龄时增长较慢。

The fibre wall thickness of moso bamboo during their mature growing period was measured.The results showed that:(1)The fibre wall thickness increases with the position change from the lacuna to the outer culm part,then decreases a little.(2)The fibre wall thickness of the same layer’s vascular bundles was not notably different.(3)The fibre wall thickness in the correspond part increases as logarithm with aging,and the tendency is that the young bamboo grows fast,and 7yearold bamboo grows slow.