| 林分结构动态模型的研究(英文) |
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| 引用本文： | 康惠宁. 林分结构动态模型的研究(英文)[J]. 中国林学(英文版), 1999, 0(1) |
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| 作者姓名： | 康惠宁 |
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| 作者单位： | 北京林业大学基础科学与信息工程学院!北京100083 |
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| 摘 要： | 为研究林分结构的动态变化，该文提出了一个偏微分方程定解问题的数学模型．通过求解这个定解问题，得到了用单木的直径生长和枯损来描述林分结构动态变化的解析表达式．为了验证这个模型，对一块小叶松林分的直径结构的变化进行了动态模拟和预测．结果表明，模拟和预测的直径分布与样本数据非常吻合．
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| 关 键 词： | 生长模型 林分结构 偏微分方程 直径生长 林木枯损率 |
An Approach to Modeling the Changing Structure of A Forest Stand+* |
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| Kang Huining. An Approach to Modeling the Changing Structure of A Forest Stand+*[J]. Forestry Studies in China, 1999, 0(1) |
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| Authors: | Kang Huining |
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| Affiliation: | Kang Huining |
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| Abstract: | ABSTRACT The definite problem of a first order partial differential equation is proposed to analyze the changes in structure of a forest stand.As the solution of the definite problem,an analytical expression is obtained,which describes the changing structure in terms of diameter growth and mortality of the individual trees.For the purpose of testing it,the model was used to simulate and predict the diameter distributions of a jack pine stand.Both simulated and predicted distributions agree with the sample data of the stand. |
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| Keywords: | growth model stand structure partial differential equation diameter growth mortality of trees |
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