四川桤木木材密度和纤维特性研究

通过对四川桤木6个家系,2～9a生样本连续进行生长、材性测定,得出如下主要结论:不同树龄之间、不同家系之间木材基本密度、纤维长度、纤维长宽比、纤维含量都达到极显著差异水平。纤维长度、纤维含量、基本密度第8年、第7年、第5年以后基本稳定。4个指标两两之间均达到极显著相关,生长速度与其材性没有必然的联系。

Study on Wood Density and Fibre Characteristics of Alnus cremastogyne Burkill in Different Families and Tree Ages in Sichuan

The growth and wood properties of the six Alnus cremastogyne Burkill families among 2～9-year-old were successively,the main conclusions were as follows :wood basic density,fibre length,ratio of length and width and content of fibre were significant differences in different ages and different families.Fibre length,content of fibre and basic density reached to the basic stabilization respectively after the 8th,7th and 5th year.Every two of four indexes were significant differences,there were not certain relations between the growth speed and its wood properties.