火炬松木材材质早期预测

根据人工林火炬松木材的晚材率,生长轮宽,管胞长度,微纤丝角及密度等材性指标的测试数据以及方差统计得出的材性变异规律,采用有序聚类最优分割法划分分出火炬松的幼龄期为１５ａ,同时探讨了幼龄期与成熟期的材性及两者之间的相关性;根据幼龄材的构造特征和材性指标,运用回归分析方法,推导出成熟材的理论预测值,经误差分析,该值与实测值十分接近,表明回归分析可以有效地实现材质早期预测。

The Early Prediction of Wood Properties of Pinus taeda L.

Based on the variation pattern of wood properties obtained from the analysis results of measurementand the regression equations of late wood percentage, growth ring width, tracheid length, microfibril angleand air density, the demarcation of juvenile wood and mature wood of Pinus taeda L. was determined atthe age of 15 years old with the analyses of optimum method of classification, and the wood properties andrelationship between juvenile wood and mature wood were also discussed, According to the characteristicsof structure and the indices of wood quality of juvenile wood, the theoretical predicted data of maturewood were inferred by the method of regression analysis, which was very approximate to actual test databy relative error analysis. The analytical method of mathematical models can be used to early predict thewood properties.