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对采自广西国营高峰林场9.5年生的马占相思木材解剖构造特征进行研究。结果表明:心边材区别明显,心材率高,全树平均55.6%;生材绝对含水率为96.9%;树皮率为12.99%;生长轮宽度平均为22.82mm。木纤维长度、直径、双壁厚、长径比均随着树龄的增加而增加,其平均值分别为891.2μm、20.34μm、6.05μm和46.0。微纤丝角随着树龄的增大变化不大,平均值为9.8°。木纤维比量、木射线比量、导管比量、薄壁组织比量的平均值分别为:70.2%、14.3%、9.9%、5.6%,各组织比量随着树龄的增加变化较小。
The anatomical characteristics of Acacia mangium collected from 9.5 years of Guangxi Gaogou Forest Farm were studied. The results showed that the difference between the heartwood and sapwood was obvious, the heartwood rate was high, the average tree percentage was 55.6%, the absolute water content was 96.9%, and the bark rate was 12.99%. The average growth ring width was 22.82mm. The length, diameter, double wall thickness and aspect ratio of wood fiber increased with the increase of tree age, the average values were 891.2μm, 20.34μm, 6.05μm and 46.0, respectively. Microfibril angle changes little with age, with an average of 9.8 °. The average values of wood fiber ratio, wood ray ratio, catheter ratio and parenchyma ratio were 70.2%, 14.3%, 9.9% and 5.6%, respectively.