| 马尾松人工林标准树高曲线模型的研究* |
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| 引用本文： | 丁贵杰.马尾松人工林标准树高曲线模型的研究*[J].浙江农林大学学报,1997,14(3):225-230. |
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| 作者姓名： | 丁贵杰 |
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| 作者单位： | 1.贵州农学院林学系, 贵阳 550025 |
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| 基金项目： | 八五国家重点科技攻关资助项目 |
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| 摘 要： | 为准确预测林分各径阶高, 用试验林和固定样地资料, 分析了树高曲线与林龄、立地和密度的关系。结果表明树高曲线随林龄、立地指数的增大, 曲线向右上方移动, 而与林分密度无关。分析了国内外树高曲线模型研究状况, 针对研究中存在的问题, 采用再次参数化方法, 把立地指数、林龄引入树高曲线模型, 创建13个新模型。用200块标准地树高曲线资料, 采用迭代法分别进行了拟合。经比较, 选出有生物学意义扩展后Richards函数, 建立了贵州省马尾松人工林标准树高曲线模型(以林龄、立地指数和胸径为自变量)。经检验, 所建树高曲线预测方程可在研究区内应用。
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| 关 键 词： | 马尾松 人工林 树高曲线 数学模型 |
| 收稿时间： | 1996-08-03 |
Study on Standard Height Curve Model of Masson Pine Planted Forests. |
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| Ding Guijie.Study on Standard Height Curve Model of Masson Pine Planted Forests.[J].Journal of Zhejiang A&F University,1997,14(3):225-230. |
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| Authors: | Ding Guijie |
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| Institution: | 1.Gui zhou Agricultural College, Guiyang 550025, PRC |
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| Abstract: | In order to forecast accurately height of each diameter class, the relationship between height curve, stand age, site and stand density was analysed using data of sample stand and permanent sample plot. The result sindicated close relations between height curve and stand age, site. Height curve moved up-right with the increase of stand age and site, and was not related to stand density. With a view to solving existing problems, the author introduced the site and stand age into the height curve model, establishing 13 new height curve models by means o f double regression. Height curve models were imitated viaiterative method using data of 200 sample plots. By comparison, Richards function with biology meaning was selected as the standard model, and the standard heigt curve equation of masson pine plantations in Guizhou was suggested. The forecast equation proved applicable in the regions. |
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