| 不同林分密度人工林赤松物理力学性质的比较 |
| |
| 引用本文： | 崔京日,金春德.不同林分密度人工林赤松物理力学性质的比较[J].东北林业大学学报,2009,37(12). |
| |
| 作者姓名： | 崔京日 金春德 |
| |
| 作者单位： | 1. 延吉市林业局,延吉,133000
2. 浙江林学院 |
| |
| 基金项目： | 国家自然科学基金资助项目 |
| |
| 摘 要： | 对延吉市帽儿山不同林分密度的人工林赤松(Pinus densiflora)的物理力学性质差异进行研究.结果表明:2个不同林分密度材绝干密度平均值相同;弦向、径向和纵向干缩率,林分密度相对低的林分人工林赤松大于林分密度相对高的林分人工林赤松;抗弯强度、抗弯弹性模量、顺纹抗拉和抗压强度、横纹弦向和径向抗压强度,林分密度相对低的林分人工林赤松要高于林分密度相对高的林分人工林赤松;弦面和径面抗剪强度,林分密度相对低的林分人工林赤松低于林分密度相对高的林分人工林赤松;2个不同林分密度人工林赤松的径向干缩率、抗弯弹性模量、顺纹抗压强度、横纹弦向和径向抗压强度差异达0.01显著水平,抗弯强度差异达0.05显著水平,绝干密度、弦向干缩率、纵向干缩率、顺纹抗拉强度无显著差异.
|
| 关 键 词： | 赤松 林分 人工林 物理力学性质 |
Physico-mechanical Properties of Pinus densiflora Plantations of Different Stand Densities |
| |
| Cui Jingri,Jin Chunde.Physico-mechanical Properties of Pinus densiflora Plantations of Different Stand Densities[J].Journal of Northeast Forestry University,2009,37(12). |
| |
| Authors: | Cui Jingri Jin Chunde |
| |
| Institution: | Cui Jingri(the Forestry Bureau of Yanji City,Yanji 133000,P.R.China),Jin Chunde(Zhejiang Forestry College) |
| |
| Abstract: | An experiment was conducted to study the differences in physico-mechanical characteristics of Pinus densiflora plantations of different stand densities in Maoer Mountain of Yanji City were studied.Results showed that the oven-dry densities of wood samples from two different stands exhibited the same average value.The tangential shrinkage rate,radial shrinkage rate,and longitudinal shrinkage of P.densiflora wood from the stand with low density were higher than those from the stand with high density.The modul... |
| |
| Keywords: | Pinus densiflora Stands Juvenile wood Physico-mechanical properties |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
