摘要
本文对毛白杨的木材纤维形态进行了测定分析,并着重对河北毛白杨(易县雌株)的不同栽植地区、树龄及树干不同部位的木纤维长度变异进行了研究。河北毛白杨的平均纤维长度可达1.50mm以上,是已知杨属木材中纤维长度最长的。其纤维长度变异与树龄、树干高度及栽培环境等有关。它早期速生,幼龄期纤维长度随树龄增加迅速,12—14年生以后,纤维长度达最大值后渐趋稳定,纤维长度随树龄变化可用y=1.0490+0.0377x-0.0006x^2的方程表示。是理想的制浆造纸和纤维用材树种,具有重要的应用前景。
Hebei poplar is a type of Populus tornentosa Carr. Width of growth rings and fiber morphology were determined. The variations in fiber length related to tree type, growth rings and positions in stem from centre to circumference and base to top. Mean value of more 1.50mm fiber length was found in a type of Yi County, Hebei province in China. It is the maximum length here been recorded for poplar. Results showed that there is a regular increase in fiber length with age of tree. Fiber length increases rapidly at young stage, the maximum length is reached in about 12—14 year, afterwards becomes stable. The fiber length (y)-age (x) relation is expressed as y=1.0490+0.0377x-0.0006x^2. It's favour the species as a valuable fiber source for some speciality pulpwood species and other fiber industry.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1990年第3期232-238,共7页
Scientia Silvae Sinicae
关键词
河北毛白杨
木材纤维
纤维形态
Wood fiber
Fiber morphology
Populus tomentosa
