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首页> 外文期刊>Journal of Tropical Forest Science >EFFECT OF RADIAL GROWTH RATE ON WOOD PROPERTIES OF NEOLAMARCKIA CADAMBA
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EFFECT OF RADIAL GROWTH RATE ON WOOD PROPERTIES OF NEOLAMARCKIA CADAMBA

机译：径向增长率对Neolamarckia Cadamba木材性质的影响

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摘要

The effect of radial growth rate on anatomical characteristics and wood properties were examined in 4-yearold Neolamarckia cadamba. A total of 63 standing trees were categorised into three groups ( slow, middle and fast growth) according to their stem diameter. Mean values of stem diameter, tree height and stress-wave velocity were 15.0 cm, 13.4 m and 2.99 km s(-1) respectively. No significant correlations were found between growth characteristics and stress-wave velocity of stems. In addition, dynamic Young's modulus of the logs differed between trees with common radial growth rate. Mean values of fibre length, diameter and wall thickness, and vessel element length, diameter and frequency were 1.52 mm, 26.9 and 1.8 mu m, and 0.72 mm, 156 mu m and 7.4 vessels mm(- 2) respectively. Mean values of basic density and compressive strength were 0.30 g cm(- 3) and 15.5 MPa respectively. No significant differences in almost all anatomical characteristics and wood properties were recognised between the three categories, suggesting that these characteristics were independent of radial growth rate.
机译：在4岁Neolamarckia Cadamba检查了径向生长速率对解剖学特征和木质性质的影响。根据其茎直径，共分为63个常设树木（缓慢，中等，生长缓慢）。茎直径，树高和应力波速度的平均值分别为15.0cm，13.4 m和2.99mm s（-1）。在生长特征和茎的应力波速度之间没有发现显着的相关性。此外，具有常见径向增长速率的树木之间的动态杨氏模量不同。纤维长度，直径和壁厚的平均值，以及容器元件长度，直径和频率分别为1.52毫米，26.9和1.8μm，分别为0.72mm，156μm和7.4毫米（ - 2）。基本密度和抗压强度的平均值分别为0.30g cm（ - 3）和15.5MPa。在三类之间确认几乎所有解剖学特征和木质性质的显着差异，表明这些特性与径向增长率无关。

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