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秃杉林分密度与胸径、树高、年龄之间的回归分析

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以2017年腾冲市森林抚育作业设计的20块优势树种为秃杉的标准地数据,应用SPSS软件进行回归分析.结果表明:用线性回归分析数据并不恰当,采用曲线回归分析数据效果较好,最终选定指数曲线来拟合方程,得出秃杉林分密度与胸径、树高、年龄的数学模型,在确定自变量的基础上对因变量密度进行曲线回归预测.
Regression Analysis between Stand Density and DBH,Tree Height and Age of Taiwania flousiana
Based on the data of 20 Taiwania flousiana dominant sample plots in Tengchong forest tending operations design in 2007,the SPSS software was used to carry out regression analysis.The results show that the linear regression analysis was not appropriate but the curve regression analysis was effective.The exponential curve was used to fit the equation which built the model of density and DBH,tree height and age,forecasting curve regression of density based on the certain independent variable.

stand densityTaiwania flousianaSPSS softwareregression analysisexponential curveTengchong City

李金亮

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云南省林业调查规划院大理分院,云南 大理671000

林分密度 秃杉 SPSS软件 回归分析 指数曲线 腾冲市

2018

林业调查规划
云南省林业调查规划院 西南地区林业信息中心

林业调查规划

CSTPCD
影响因子:0.45
ISSN:1671-3168
年,卷(期):2018.43(2)
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