Position: Home > Articles > Study on planting density affecting of the wood properties in the pupltree of masson pine
Guizhou Forestry Science and Technology
2001,29
(4)
19-22
马尾松纸浆林造林密度对木材性质的影响
作 者：
夏玉芳
单 位：
贵州大学林学系
关键词：
马尾松纸浆林;造林密度;木材基本密度;管胞形态;管胞长度频率分布
摘 要：
本文研究了龙里林场 5种造林密度、15年生马尾松纸浆林木材基本密度和管胞形态。结果表明 :造林密度对木材基本密度影响不大 ,但具明显的趋势 ,即一定造林密度条件下 ,木材基本密度随造林密度增加而增加。造林密度对管胞形态的影响 ,表现出因年龄而异。不同造林密度马尾松管胞形态总平均值变化不大 ,但管胞长度随树龄的增大而增加的趋势 ,受到造林密度影响 ,较低的造林密度各生长轮管胞形态差异不显著。管胞长度频率分布具一定的规律 ,中等长度 (2 5 0 1～ 35 0 0 um)管胞长度频率分布最大 ,占总频率的 4 5 %～ 74 .19% ,随着造林密度加大 ,中等长度的管胞增加 ;较短管胞长度 (≤ 2 5 0 0 um)减少
译 名：
Study on planting density affecting of the wood properties in the pupltree of masson pine
作 者：
Xia Yufang(The Forestry Department of Guizhou University, Guiyang 550025)
关键词：
popultree of Masson Pine, planting density, wood basic density, tracheid form, the frequency of tracheid length
摘 要：
This paper studied the wood basic density and tracheid form for 15 years pupltree of Masson pine plantations, with 5 different planting densities in Longli, Guizhou. The results show that the planting densities Although the effect of planting density on the wood basic density is not significant, the vary dendency is obvious that wood basic density increased with planting density but decreased if it is too closed. The effect of planting densities on tracheid form vary with age. The average value of tracheid form in different planting densities has no difference, but it is affected by the age. The tracheid length increase with their age on the condition of large planting density and it has no regularity if planting density is small. affect through variance analysis. The frequency of tracheid length has the regularity that middle (2501～3500um) is largest and 45%～74.19% of total one. As planting density increase, the middle-tracheid length increase and short (≤2500um) one decreased.
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