...，管胞形态，木材物理力学特征，变异规律 [gap=587]Key words: Pinus densiflora, Different slope places, Tracheid morphology, Wood physical mechanics characteristics, Variation pattern ..
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管胞形态特征 tracheid morphological features ; tracheid formal features ; tracheid shape properties
In order to study the effects of wood properties of Loblolly 且pine(pinus teada L. ) Plantation from three different site conditions,the basic density,tracheid morphology,chemical components and PH value have been measured and dealt with.
对三个标准地人工林火炬松木材的基本密度、管胞形态、化学成分含量和PH值进行了系统的测定和分析，结果表明：基本密度、管胞长度、管胞宽度和管胞长宽比自髓心向外呈增加趋势。
参考来源 - 不同立地条件对人工林火炬松纸浆材材性影响规律的研究The grade of canopy density would rise with the increasing in the age and crown of the trees, it would induce reducing in diversity of tracheid morphological features at the latter of the growth period.
随着树龄的增加,树冠增大,郁闭度的加大,生长后期各种源管胞形态值差异减小。
参考来源 - 福建引种火炬松种源管胞形态特征和基本密度变异In this paper, 12 years old Chinese Fir clones were studied on the genetic variation of growth properties, basic density and tracheid morphological characteristics. The main results were as follows.
本文综合研究了12年生杉木无性系试验林的生长性状、基本密度和管胞形态的遗传变异规律。
参考来源 - 杉木无性系生长与材性综合遗传改良研究·2,447,543篇论文数据，部分数据来源于NoteExpress
研究间歇性淹水对池杉木材管胞形态变异的影响。
The effect of intermittent flood upon the radial variation of tracheid features of Taxodium ascendens was investigated.
影响管胞形态地理变异的气候因子中，水湿条件是主导因素，其次是温度。
Among the climatic factors which affect the geographic variation of tracheid morphological, moisture and rainfall are the principal factors, secondary is temperature.
结果表明，造林密度对马尾松管胞形态总平均值影响不大，方差分析不显著；
The results show that the average value of tracheid form can not be affected by the planting density through variance analysis .
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