[1]赵浩彦,张洁 *,张民侠,等.马尾松树干不同高度处直径与材积相关 关系研究[J].湖南林业科技,2015,(06):31-35.[doi:10.3969/j.issn.1003-5710.2015.06.005]
 *,,et al.The relationship between of diameters at different heights and volume of Pinus massoniana Lamb[J].Hunan Forestry Science & Technology,2015,(06):31-35.[doi:10.3969/j.issn.1003-5710.2015.06.005]
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马尾松树干不同高度处直径与材积相关 关系研究()
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《湖南林业科技》[ISSN:1003-5710/CN:43-1096/S]

卷:
期数:
2015年06期
页码:
31-35
栏目:
研究报告
出版日期:
2015-11-30

文章信息/Info

Title:
The relationship between of diameters at different heights and volume of Pinus massoniana Lamb
文章编号:
1003-5710(2015)06-0031-05
作者:
赵浩彦;? 张洁 * ;? 张民侠;? 谢春平;? 陈戈萍
南京森林警察学院, 江苏 南京210023
Author(s):
ZHAOHaoyan;?ZHANGJie*;?ZHANGMinxia;? XIEChunping;?CHENGeping
NanjingForestPoliceCollege,JiangsuNanjing210023,China
关键词:
马尾松;? 地径;? 材积;? 逐步回归
Keywords:
Pinus massoniana Lamb;? ground diameter;? volume;?stepwise
分类号:
S 7581
DOI:
10.3969/j.issn.1003-5710.2015.06.005
文献标志码:
A
摘要:
在南京市紫金山风景区马尾松纯林中随机抽取349株马尾松样木,测量树干不同高度处直径(D0、D0.1、D0.2和D0.3)和树高,采用逐步回归方法分别建立了直径与材积的相关数学模型。根据相关指数、剩余标准差、系统误差和平均误差等4个评价指标对数学模型进行评价。评价结果显示,乘幂方程拟合不同部位地径和材积的效果最好。又根据未参加建模的65株样木数据,运用系统误差和平均误差2个指标,对确定的4种树干高度处直径与材积的相关关系方程进行适用性检验。检验结果显示,4个乘幂方程的系统误差均不超过1%,平均相对误差均不超过21%,表明乘幂方程具有较好的适用性。依据4种树干高度处直径与材积方程的相关指数和森林采伐规程,以离地面0.1m处的树干直径作为地径较为适宜。
Abstract:
349 Pinus massoniana Lamb trees were chosen randomly and diameters at different heights (D0、D0.1、D0.2and D0.3) and height of each tree were measured in Nanjing Zijin Mountain The related mathematic models of diameters at different heights and volume were established with the method of stepwise and were evaluated by correlation index, relative residual standard deviation, systematic error and mean error The results suggest that power model is optimal for fitting the relationship between diameters at different heights and volume of each tree The applicability of the models of diameters at four heights and volume was tested by systematic error and mean error based on survey data of 65 trees The results suggest that systematic errors and mean errors of the four models were less than 1% and 21% respectively, which shows power equation can be applied universally in the region According to correlation indexes of the models of diameters at four heights and volume and the code of forest harvesting, the diameter at 01m from the ground is most suitable for the ground diameter

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备注/Memo

备注/Memo:
基金项目:中央高校项目“苏南地区马尾松伐桩直径与树高和胸径的非线性混合效应模型的研建”(LGYB201401)。
作者简介:赵浩彦(1982-),男,山西省长治市人,讲师,博士,研究方向为森林可持续经营。
* 为通讯作者。
更新日期/Last Update: 2015-11-30