| 马尾松管胞长度分布规律及计算机随机模拟 |
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| 引用本文： | 侯祝强,姜笑梅,殷亚方.马尾松管胞长度分布规律及计算机随机模拟[J].林业科学研究,2001,14(3):271-277. |
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| 作者姓名： | 侯祝强 姜笑梅 殷亚方 |
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| 作者单位： | 中国林业科学研究院木材工业研究所, |
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| 基金项目： | 国家攀登计划预选项目子课题!人工林木材性质特点与规律研究 |
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| 摘 要： | 根据20年生人工林马尾松早晚材管胞长度测量结果，运用随机变量正态性检验的偏斜系数和峰态系数方法，系统地分析了6株马尾松标准试材测量样品不同组合的偏斜系数和峰态系数。结果表明，马尾松木材的管胞长度是服从正态的随机变量，3株试材测量样品就可揭示出其正态分布特性，另外，利用计算机直接随机抽样的方法对马尾松管胞长度进行了模拟，模拟结果的平均值具有较高的精度，由此可以获得一个关于研究木材细胞分子解剖结构参数的新方法。
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| 关 键 词： | 马尾松 管胞长度 随机抽样模拟 木材细胞 解剖结构 |
| 文章编号： | 1001-1498(2001)03-0271-07 |
| 收稿时间： | 1/8/2000 12:00:00 AM |
The Probability Distribution and Sampling Simulation of the Tracheid Length in Masson Pine |
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| HOU Zhu-qiang,JIANG Xiao-mei and YIN Ya-fang.The Probability Distribution and Sampling Simulation of the Tracheid Length in Masson Pine[J].Forest Research,2001,14(3):271-277. |
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| Authors: | HOU Zhu-qiang JIANG Xiao-mei and YIN Ya-fang |
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| Institution: | Research Institute of Wood Industry, CAF, Beijing 100091, China;Research Institute of Wood Industry, CAF, Beijing 100091, China;Research Institute of Wood Industry, CAF, Beijing 100091, China |
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| Abstract: | The tracheid length in six tested logs from 20-year-old plantation-grown tree of masson pine (Pinus massoniana Lamb.) were studied. The skew factors and kurtosis factors were evaluated to test the probability distribution towards the tracheid length from the measurements of different sample combinations. Results showed that the length of tracheid in masson pine can be regarded as the random variable and is normally distributed. The property of normal distribution could be revealed just with three woods tested. The computer simulation of tracheid length was made by means of random sampling. There was great agreement between the means of tracheid length from the simulation and the ones from measurement and the relative error was below 0.55%. |
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| Keywords: | masson pine tracheid length sampling simulation |
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