红松幼龄材与成熟材力学性质的差异

刘迎涛; 刘一星; 李坚

doi:10.19455/j.mcgy.2005.02.009

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红松幼龄材与成熟材力学性质的差异
Analysis of Properties between Juvenile and Mature Wood of Korean Pine from Plantation and Natural Forest
1. 东北林业大学材料科学与工程学院
2. 东北林业大学材料科学与工程学院,哈尔滨,150040
2005年第2期页码：32-34
DOI： 10.19455/j.mcgy.2005.02.009

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[1]刘迎涛,刘一星,李坚.红松幼龄材与成熟材力学性质的差异[J].木材工业,2005(02):32-34.

LIU Ying-tao, LIU Yi-xing, LI Jian. Analysis of Properties between Juvenile and Mature Wood of Korean Pine from Plantation and Natural Forest[J]. China Wood Industry, 2005,(2):32-34.
[1]刘迎涛,刘一星,李坚.红松幼龄材与成熟材力学性质的差异[J].木材工业,2005(02):32-34. DOI： 10.19455/j.mcgy.2005.02.009.

LIU Ying-tao, LIU Yi-xing, LI Jian. Analysis of Properties between Juvenile and Mature Wood of Korean Pine from Plantation and Natural Forest[J]. China Wood Industry, 2005,(2):32-34. DOI： 10.19455/j.mcgy.2005.02.009.

摘要

本文研究了人工林和天然林红松幼龄材与成熟材力学性质的差异。结果显示,成熟材的所有力学性质均高于幼龄材。幼龄材与成熟材的抗弯弹性模量差异在人工林红松中达0.01水平显著,天然林红松也达到0.01水平显著;人工林红松抗弯强度和弦向横纹抗压强度差异达0.05水平显著。抗弯强度、顺纹抗压强度、横切面硬度和弦向横纹抗压强度4项指标的差异达0.05水平显著。

Abstract

The differences in mechanical properties between juvenile and mature wood of Korean Pine （Pinus Koraiensis） from plantation and natural forest were analyzed. A basic tendency exhibited by all of the properties was: the properties index of mature wood were much better than that of juvenile wood. The difference in MOE of plantation Korean Pine reached 0.01 level of significance while MOR and tangential crushing strength reached 0.05 level of significance. The difference in MOE of natural Korean Pine also reached 0.01 level of significance and MOR, radial crushing strength, hardness of cross section and tangential crushing strength reached 0.05 level of significance.