| 油松个体林木生长的数学模拟 |
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| 引用本文： | 韩兴吉. 油松个体林木生长的数学模拟[J]. 北京林业大学学报, 1988, 10(1): 1-9 |
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| 作者姓名： | 韩兴吉 |
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| 作者单位： | 北京林业大学林业经济与信息管理系 |
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| 摘 要： | 运用与距离有关的树木生长模型,根据油松人工林内林木的空间分布格局和树高生长量,引用生长比和郁闭比等概念对树木的枝长生长,树冠扩展过程和林分郁闭过程进行了数学模拟。模型中将树冠内各轮枝的着生状态描绘成状态矩阵的形式。通过状态矩阵结合枝长及着枝深度与叶量的关系确定出各轮枝的叶量和整株树冠的有效叶量。最后通过叶量确定林木的材积生长。
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| 关 键 词： | 油松 生长模拟 数学模型 生物量 |
Mathematical Simulation of Individual Tree Growth of Pinus tabulaeformis |
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| Han Xingji. Mathematical Simulation of Individual Tree Growth of Pinus tabulaeformis[J]. Journal of Beijing Forestry University, 1988, 10(1): 1-9 |
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| Authors: | Han Xingji |
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| Affiliation: | Department of Forestry Economics and Information |
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| Abstract: | This distance-dependent individual tree model was established for predicting individual tree growth of Pinus tabulaeformis. According to the tree distribution pattern, height growth, branch growth-ratio,and sta-nd closed-ratio, this model can simulate the processes of stand closing and the tree crown expansion. Combining these processes with other factors, the tree stem volume increment is calculated by available leaf weight, which can be estimated by the branching depth and the, length of branch. |
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| Keywords: | Pinus tabulaeformis growth simulation mathematical model biomass |
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