桉树无性系纸浆材材性分析

Study on the Wood Characters of Eucalyptus Clone

对5种桉树无性系的木材密度、化学成分、纤维细胞壁厚、腔径、壁腔比及腔径比进行了分析。结果表明，桉树无性系的木材密度为0．423～0．629g／cm^3；与一般阔叶材相比，桉树无性系的纤维素和抽出物含量相对较高，戊聚糖含量较低，但不同地域种植相同品种的桉树无性系的化学成分差异较大。桉树无性系的纤维平均长度为0．882～1．017mm、平均宽度为15．15～19．43μm，材性指标均符合造纸工业对纸浆材的质量要求。

The wood characters and fiber qualities of five series eucalyptus clone were investigated in the paper. The results showed the wood density of eucalyptus clone is 0. 423 - 0. 629 g/cm^3 , the cellulose and extractives contents of eucalyptus clone are relatively high, the contents of hemicellulose of eucalyptus clone are relatively lower compared with the common hardwood, but the chemical component of same breed in different area are highly diversified. The average fiber length of eucalyptus clone is 0. 882 - 1. 017 mm and the average width is 15. 15 - 19.43 μm, all the index of wood character meet the requirement of the pulp for paper making.