4种福建乡土竹种的纤维形态分析

Fiber Morphology of 4 Species of Native Bamboo in Fujian Province

对4年生大木竹、椽竹、苦绿竹、橄榄竹的纤维长度、纤维宽度进行了显微观测与分析,结果表明,4个竹种的平均纤维长度为2.12～2.58mm,属略长至甚长纤维范畴,平均纤维宽度在11.69～12.75μm,各竹种的纤维长宽比为160～220,均适用于制纸原料。纤维形态在竹秆的不同部位存在着差别,在纵向上,竹材中部的纤维较长,基部次之,顶部居三,而纤维宽度为基部>中部>顶部;在径向上,纤维长度为内部>外部,而纤维宽度的差异不明显。

The fiber length ＆ width were microscopic observed in 4-year-old culms of Bambusa wenchouensis, Bambusa textilis ,Dendrocalamopsis basihirsuta ＆ Acidosasa gigantea. Result shows the average fiber length of 4 bamboo species which are slightly long to very long, being 2.12-2.58 mm ;the fiber width is 11.69-12.75 um, the ratio of length and width are 160- 220, so 4 bamboo species are applied to paper materials. There are changes in different parts of bamboo culms. In vertical, the fiber length was middle 〉 bottom 〉 top, the width was bottom 〉 middle 〉 top. In radial, the fiber length is inside 〉 outside, the width is not significantly different.