Study on the Radial Variability and Prediction of Basic Densities in Two North American Oak Species

ZHANG Wentao; WANG Yangdong; LI Wei; XIONG Shifa; SHI Xiang; WU Liwen

doi:10.12326/j.2096-9694.2024095

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Study on the Radial Variability and Prediction of Basic Densities in Two North American Oak Species
1.Northeast Forestry University，Harbin 150040，Heilongjiang，China
2.Research Institute of Subtropical Forestry，Chinese Academy of Forestry，Hangzhou 311400，Zhejiang，China
3.Chinese Academy of Forestry，Beijing 100091，China
Vol. 39, Issue 1, Pages: 30-36(2025)
DOI： 10.12326/j.2096-9694.2024095
稿件说明：

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张文涛,汪阳东,李伟等.两种北美栎树基本密度的径向变异及预测研究[J].木材科学与技术,2025,39(01):30-36. DOI： 10.12326/j.2096-9694.2024095.

ZHANG Wentao,WANG Yangdong,LI Wei,et al.Study on the Radial Variability and Prediction of Basic Densities in Two North American Oak Species[J].Chinese Journal of Wood Science and Technology,2025,39(01):30-36. DOI： 10.12326/j.2096-9694.2024095.

摘要

以国外引种舒氏红栎（

Quercus shumardii

）和黑栎（

Q. nigra

）活立木为研究对象，利用生

长锥获取木芯，分析其基本密度径向变异规律，并探究树木针测仪（Resistograph）评估两种木材不同部位基本密度的可行性。结果表明，两种栎树的生长轮宽度从髓心至树皮方向呈下降趋势，基本密度从髓心至树皮方向呈上升趋势；利用Resistograph检测的平均振幅值可对舒氏红栎和黑栎木材的基本密度进行评估，拟合结果均达到统计学上的显著水平，且二者均是近树皮段的拟合度较高，舒氏红栎的相关系数为0.821，黑栎的相关系数为0.743。研究结果可为间接评估舒氏红栎和黑栎木材基本密度提供理论依据。

Abstract

This study focuses on the standing trees of

Quercus shumardii

and

Q. nigra

which were introduced from overseas. Growth cones were used to collect wood cores. The basic density and radial variation patterns were analyzed. Additionally

the Resistograph was employed to predict the basic density from different wood sections in

shumardii

and

nigra

. The findings revealed that the annual ring width of

shumardii

and

nigra

exhibited a decreasing trend from the pith to the bark

while the basic density increased in the same direction. The Resistograph effectively assessed the basic density of

shumardii

and

nigra

respectively. Notably

the accuracy of the fit was highest for wood located closest to the bark

with correlation coefficients of 0.821 and 0.743

respectively. This research provides a theoretical foundation for the efficient assessment of basic wood density in

shumardii

and

nigra

关键词

Keywords

references

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