| 小兴安岭主要树种生物量的理论模型 |
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| 引用本文： | 杨金明,范文义.小兴安岭主要树种生物量的理论模型[J].东北林业大学学报,2011,39(3):46-48,60. |
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| 作者姓名： | 杨金明 范文义 |
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| 作者单位： | 东北林业大学,哈尔滨,150040 |
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| 基金项目： | 国家高技术研究发展计划项目，中央高校科研业务经费专项资金项目 |
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| 摘 要： | 为了研究大尺度森林生物量,利用高精度的林木生物量模型准确估算单木生物量,以树木胸径D为基本自变量,采用chebyshev正交多项式系构建新的自变量组合,并利用偏最小二乘方法进行回归,建立了小兴安岭15个树种的生物量理论模型,并将之与采用常规生物量模型建立的模型进行了精度比较.结果表明:生物量理论模型方法对样本的拟舍效果...
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| 关 键 词： | 生物量模型 Chebyshev正交多项式 偏最小二乘 小兴安岭 |
Theoretical Model for Biomass of Main Tree Species in Xiaoxing'an Mountains |
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| Yang Jinming,Fan Wenyi.Theoretical Model for Biomass of Main Tree Species in Xiaoxing'an Mountains[J].Journal of Northeast Forestry University,2011,39(3):46-48,60. |
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| Authors: | Yang Jinming Fan Wenyi |
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| Institution: | Yang Jinming,Fan Wenyi(School of Forestry,Northeast Forestry University,Harbin 150040,P.R.China) |
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| Abstract: | A high precision forest biomass model was used to estimate the biomass of individual trees using diameter at breast height as the basic independent variable,in order to study large-scale forest biomass.A new combination of independent variables was constructed using Chebyshev orthogonal polynomials.Theoretical models for biomass of 15 tree species in Xiaoxing'an mountains were established by the partial least squares regression,and their accuracies were compared with those of the traditional biomass model.R... |
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| Keywords: | Biomass models Chebyshev orthogonal polynomials Partial least squares Xiaoxing'an mountains |
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