| 生物量模型方差非齐性研究 |
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| 引用本文： | 胥辉.生物量模型方差非齐性研究[J].西南林学院学报,1999,19(2):73-77. |
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| 作者姓名： | 胥辉 |
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| 作者单位： | 西南林学院资源学院,昆明,650224 |
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| 摘 要： | 以长白落叶松（Ｌａｒｉｘ ｏｌｇｅｎｓｉｓ）为实例，验证树木生物量模型中存在方差非齐性，并提出以模型自身作为权函数来消除方差非齐性的参数估计方法。
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| 关 键 词： | 生物量模型 方差非齐性 参数估计 |
A Study on the Heterosceasticity in Tree Biomass Model |
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| Xu Hui.A Study on the Heterosceasticity in Tree Biomass Model[J].Journal of Southwest Forestry College,1999,19(2):73-77. |
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| Authors: | Xu Hui |
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| Abstract: | Validation on Larix olgensis showed that the error of tree biomass model is heteroscedastic. Thus, a parameter estimate method where the heteroscedasticity is overcome by the model itself as weight function was proposed. |
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| Keywords: | Biomass model Heteroscedasticity Parameter estimate |
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