| 陈 微1,2，曾红梅1,2，高颖慧1,2，赵婷婷1,2，周玉萍3，郝清玉1,2.木麻黄及2种相思海防林活立木应力波传播速度的影
响因素分析[J].海南师范大学学报自科版,2019,32(3):281-287 |
| 木麻黄及2种相思海防林活立木应力波传播速度的影
响因素分析 |
| Analysis on the Influence Factors of Stress Wave PropagationVelocity of Casuarina equisetifolia and Two Kindsof Acacia Standing Trees |
| |
| DOI：10.12051/j.issn.1674-4942.2019.03.006 |
| 中文关键词: 应力波传播速度 木麻黄 马占相思 大叶相思 海防林 |
| 英文关键词: stress wave propagation velocity Casuarina equisetifolia Acacia mangium Acacia auriculiformis coastal
protection forest |
| 基金项目:国家自然科学基金项目（31760202） |
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| 中文摘要: |
| 采用应力波技术分析海南岛海防林主要树种、胸径、不同气候分布区、活立木不同方位
等因素对活立木应力波传播速度的影响。结果表明：（1）木麻黄应力波传播速度与胸径大小呈极
显著正相关，其中S型曲线和倒函数曲线的相关性远好于直线的相关性，但二者之间的相关性主要
适用于中小径级范围内，胸径大于16 cm后应力传播波速度基本稳定；（2）不同树种应力波传播速
度具有一定的差异性，相同胸径条件下（DBH：12～16 cm），木麻黄 Casuarina equisetifolia的应力波
传播速度最大（4211.90 m·s-1
），马占相思 Acacia mangium 次之（4025.17 m·s-1
），大叶相思 Acacia auriculiformis 最小（3543.75 m·s-1
），且DBH ≥ 18 cm时，各径级木麻黄应力波传播速度也均大于马
占相思，表明木麻黄的抗风性能良好；（3）不同气候分布区及活立木不同方位对木麻黄应力波传播
速度无显著影响。研究结果对评价海防林不同树种的抗风性能具有重要意义。 |
| 英文摘要: |
| In this paper, stress wave technology was used to analyze the influence of main tree species, tree diameter at
breast high(DBH), different climate distribution area and different orientations on the stress wave velocity of standing trees
in Hainan island coastal protection forest. The results showed that : (1) the stress wave propagation speed of Casuarina equi⁃
setifolia was very significant positive correlation with the size of diameter at breast height(DBH), and the correlations of Stype curve and reciprocal function curve were far better than that of the linear line, but the correlation between them was
mainly suitable for the small and medium trees. When the DBH classes were greater than 16 cm, the stress wave speed
reached a steady state, and no longer correlation with DBH classes was found; (2) the stress wave velocities were different
among different species. Under the condition of the same DBH(12～16 cm), the stress wave propagation speed of Casuarina equisetifolia reached to the maximum 4211.90 m·s-1, followed by Acacia mangium, being 4025.17 m·s-1, while Acacia au⁃
riculiformis was the minimum 3543.75 m·s-1. When DBH was over 18 cm, the stress wave propagation velocity of Casuari⁃
na equisetifolia was also greater than that of Acacia mangium in all diameter classes, indicating that Casuarina equisetifolia
had good wind resistance;(3)different climate distribution areas and different orientations of standing trees had no signifi⁃
cant influence on the stress wave propagation speed of Casuarina equisetifolia. The results are of great significance to evalu⁃
ate the wind resistance of different tree species in coastal protection forest. |
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