木材科学与技术2025，Vol.39Issue(6)：10-17,8.DOI:10.12326/j.2096-9694.2025096
杂种落叶松木材主要化学成分与抗弯性能相关性
Correlation between Primary Chemical Components and Bending Property of Hybrid Larch
摘要
Abstract
This study analyzed the correlation between the primary chemical components and the bending properties of larch wood from two interspecific hybrid families across three tree ages,sampled at different radial positions.A comparison was conducted between two characterization metrics:chemical component density and mass fraction.The results showed that the correlations among cellulose,hemicellulose,and lignin were consistently stronger when expressed as chemical component density,with all reaching a high correlation level.Chemical component density also outperformed mass fraction in revealing the relationships between the three components and the bending properties.In particular,the coefficients of determination for linear fits between cellulose density and bending modulus of rupture(MOR)and modulus of elasticity(MOE)were 0.86 and 0.83,respectively,which were significantly higher than those obtained for cellulose mass fraction(0.14 and 0.22)and wood density(0.75 and 0.61).Thus,cellulose density could serve as an effective indicator for the rapid and reliable assessment of larch wood bending properties,especially suitable for rapid assessment in the scenarios limited to micro-destructive or minimal sampling.关键词
杂种落叶松/化学成分密度/化学成分质量分数/抗弯性能/相关性Key words
hybrid larch/chemical component density/mass fraction of chemical component/bending properties/correlation分类
农业科技引用本文复制引用
周凡,周永东,高鑫,梁龙,李珠,向娥琳,蒋佳荔..杂种落叶松木材主要化学成分与抗弯性能相关性[J].木材科学与技术,2025,39(6):10-17,8.基金项目
农业生物育种国家科技重大专项课题"纸浆材及结构材用松树木材性质与质量评价"(2023ZD0405905). （2023ZD0405905）
