东北林业大学学报2026，Vol.54Issue(9)：79-86,8.
3种人工林木材纤维特性及变异规律
Fiber Characteristics and Variation Patterns of Wood from Three Types of Plantation Forests
摘要
Abstract
To clarify the morphological characteristics and variation rules of wood fibers in plantation tree species with similar ages,9-year-old Phoebe zhennan,10-year-old Alnus formosana and 11-year-old Tectona grandis were selected as research materials.The longitudinal and radial gradient variations of wood fiber morphology were analyzed,and key influencing fac-tors were explored via multi-factor analysis of variance and principal component analysis.The results revealed that tree spe-cies,radial positions and tree height collectively contributed over 77%to the total variance of fiber morphology.Tree spe-cies served as the dominant factor causing fiber morphological differences,and significant interactive effects existed be-tween tree species and radial positions.A.formosana possessed longer fibers,higher length-to-width ratio and larger lumen diameter,showing prominent fast-growing characteristics.P.zhennan had the shortest and narrowest fibers with compact cell walls.Fiber properties of T.grandis fell between the above two species with stable variation ranges.With the increase of tree height,fiber length of all three wood species decreased,with the most remarkable reduction observed in P.zhen-nan.Fiber width and lumen diameter of A.formosana and T.grandis fluctuated downward,while those of P.zhennan in-creased conversely.From pith to sapwood,fiber length and length-to-width ratio increased steadily for all species.Fiber width and lumen diameter rose in A.formosana and T.grandis,whereas fiber shrinkage occurred in P.zhennan.Accord-ingly,differentiated timber harvesting and rational utilization strategies can be formulated targeting distinct tree species and wood positions.The sapwood of A.formosana is suitable for high-strength pulp production,the heartwood of P.zhennan applies to high-density materials,and T.grandis can be adopted for versatile applications.关键词
楠木/台湾桤木/柚木/纤维形态/多因素方差分析/主成分分析Key words
Phoebe zhennan/Alnus formosana/Tectona grandis/Fiber morphology/Multi-factor analysis of vari-ance/Principal component analysis分类
农业科技引用本文复制引用
禤示青,陈桂丹,郝海坤,陈松武,曹艳云,刘晓玲..3种人工林木材纤维特性及变异规律[J].东北林业大学学报,2026,54(9):79-86,8.基金项目
广西林科院研究团队专项(2024RT15) （2024RT15）
广西林业科技推广示范项目(2023GXLK03). （2023GXLK03）
