| 西南桦人工林单株生物量的回归模型 |
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| 引用本文： | 刘云彩,姜远标,陈宏伟,李江.西南桦人工林单株生物量的回归模型[J].福建林业科技,2008,35(2):42-46. |
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| 作者姓名： | 刘云彩 姜远标 陈宏伟 李江 |
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| 作者单位： | 1. 云南省林业科学院,云南,昆明,650204
2. 普洱市林业科学研究所,云南,普洱,665000 |
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| 基金项目： | 云南省科技厅科技攻关项目 |
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| 摘 要： | 通过对林分进行每木调查,以D-H曲线进行平均木选择,分径阶伐倒平均木获得生物量数据。以幂指数模型为基础对西南桦人工林的单株生物量模型进行了模拟,以胸径(D)、树高(H)、1/2树高处直径(D1/2)、胸径平方乘树高(D2H)等作自变量,所选择的树干、树枝、树叶、树根的回归模型分别为:Wt=0.563D2.631、Wb=0.0003D3.6499、Wl=0.0022D2.6063、Wr=1.4×10-7H5.9972。以胸径(D)、树高(H)、1/2树高处直径(D1/2)、胸径平方乘树高(D2H)等作自变量的回归模型均可作为全树生物量预测模型。
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| 关 键 词： | 西南桦 人工林 生物量 幂指数 回归 |
Regression equations for individual tree of Betula alnoides plantation |
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| LIU Yun-cai,JIANG Yuan-biao,CHEN Hong-wei,LI Jiang.Regression equations for individual tree of Betula alnoides plantation[J].Journal of Fujian Forestry Science and Technology,2008,35(2):42-46. |
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| Authors: | LIU Yun-cai JIANG Yuan-biao CHEN Hong-wei LI Jiang |
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| Abstract: | Biomass data were obtained by stand inventory with mean trees selected by D-H curve and felled by diameter classes.Regression equations were developed mainly based on exponential function with biomass as dependent variable and D,H,D1/2 and D2H as independent variables.Regression equations for main stem,branches,leaves and roots were Wt=0.563D2.631,Wb=0.0003D3.6499,Wl=0.0022D2.6063,Wr=1.4×10-7H5.9972,respectively.Regression equations with D,H,D1/2 and D2H as independent variables could all be used for whole tree biomass calculation. |
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| Keywords: | Betula alniodes plantation biomass exponential function regression |
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