| 方形样地法测定林分胸高断面积的理论探讨 |
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| 引用本文： | 孙丽娟,王顺民.方形样地法测定林分胸高断面积的理论探讨[J].林业调查规划,2007,32(2):4-6. |
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| 作者姓名： | 孙丽娟 王顺民 |
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| 作者单位： | 云南林业职业技术学院,云南,昆明,650224;云南林业职业技术学院,云南,昆明,650224 |
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| 摘 要： | 通过对林分平均胸径100倍圆法理论含义的分析,推导出方形样地(或标准地)的边长等于林分平均胸径的88.62倍时,林分每公顷断面积等于方形样地内的林木株数加上边界上林木株数的一半.文章对该方法的理论成立性、误差分析、操作方法及对林分适应性特点等作了相应的探讨.
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| 关 键 词： | 林分平均胸径100倍圆法 林分平均胸径 方形样地 林分胸高断面积 |
| 文章编号： | 1671-3168（2007）02-0004-03 |
| 收稿时间： | 2006-10-20 |
| 修稿时间： | 2006年10月20 |
The Theoretical Discussion on the Determination of Section Area of Stand Breast Height by the Method of Square Sample Plot |
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| SUN Li-juan,WANG Sun-min.The Theoretical Discussion on the Determination of Section Area of Stand Breast Height by the Method of Square Sample Plot[J].Forest Inventory and Planning,2007,32(2):4-6. |
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| Authors: | SUN Li-juan WANG Sun-min |
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| Abstract: | The theoretical analysis on the method of 100 times' circles of forest stand average breast diameter deduces that the section area per hector of stand equals to the half of timber number in square sample plot plus to that on the boundary when length of square sample plot(or standard plot) equals to 88.62 times of stand average breast diameter.In the paper it also discusses the relevant aspects the method including theoretical establishment,error analysis,operational procedures as well as adaptability feature of forest stand. |
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| Keywords: | the method of 100 times' circles of forest stand average breast diameter stand average breast diameter square sample plot section area of stand at height of breast |
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