| 宝天曼自然保护区天然次生林林分直径分布规律研究 |
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| 引用本文： | 闫东锋,侯金芳,张忠义,李继亮,任兆慧,李建国.宝天曼自然保护区天然次生林林分直径分布规律研究[J].河南科学,2006,24(3):364-367. |
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| 作者姓名： | 闫东锋 侯金芳 张忠义 李继亮 任兆慧 李建国 |
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| 作者单位： | 1. 河南农业大学,林学园艺学院,郑州,450002
2. 河南威纳利园林绿化工程有限公司,郑州,450000 |
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| 摘 要： | 以宝天曼天然次生林32块样地的调查数据为依据,分别以正态分布、对数正态分布,Weibull分布,Beta分布,Gamma分布拟合及预测宝天曼自然保护区天然次生林10种主要乔木树种直径分布,并对其适用性进行分析、比较,选出最适合于拟合及预测该林分直径结构的分布.同时应用三种直径分布特征数对直径分布规律进行分析.结果表明:Beta分布与Weibull分布均可以较好地描述宝天曼天然次生林主要乔木树种的直径分布;大多数树种偏度为偏左,峰度值为正.
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| 关 键 词： | 天然次生林 直径分布 宝天曼 |
| 文章编号： | 1004-3918(2006)03-0364-04 |
| 收稿时间： | 2006-02-21 |
| 修稿时间： | 2006年2月21日 |
Analysis of the Diameter Distribution Laws of the Natural Secondary Forest in Baotianman Natural Reserve |
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| YAN Dong-feng,HOU Jin-fang,ZHANG Zhong-yi,LI Ji-liang,REN Zhao-hui,LI Jian-guo.Analysis of the Diameter Distribution Laws of the Natural Secondary Forest in Baotianman Natural Reserve[J].Henan Science,2006,24(3):364-367. |
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| Authors: | YAN Dong-feng HOU Jin-fang ZHANG Zhong-yi LI Ji-liang REN Zhao-hui LI Jian-guo |
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| Institution: | 1. College of Forest and Horitieuhure, Henan Agrieultural University, Zhengzhou 450002, China; 2. Henan Weinali Garden Vireseenee Engineering Corporation Limited, Zhengzhou 450000, China |
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| Abstract: | The main purpose of the thesis is choosing the more superior distribution among normal distribution,logarithmic normal distribution,weibull distribution,beta distribution and gamma distribution when they are used for fitting and forecasting ten main trees diameter distribution of natural secondary forest in baotianman on basis of analyzing and comparing the data from the 32 plots of natural secondary forest in baotianman.The test analyzes the diameter distribution laws with three characteristics of diameter distribution.The results show:the more superior distributions used for describing main trees diameter distribution of natural secondary forest in Baotianman are Weibull distribution and Beta distribution.Big parts of skews are positive and crests are positive. |
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| Keywords: | natural secondary forest diameter distribution Baotianman |
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