基于不同立地质量评价指标的杉木大径材林分树高-胸径模型
Height-Diameter Model of Cunninghamia lanceolata Large-Diameter Stands Based on Various Site quality evaluation index
[目的]基于不同立地质量评价指标,构建杉木大径材林分的树高-胸径模型,评价包含不同立地质量评价指标模 型的拟合及预测效果,为大径材林分下的杉木生长预测和经营措施制定提供参考。[方法]以福建省上杭白砂国有林场的大 径材杉木人工林为研究对象,选取 7个具有代表性的树高-胸径模型,从中筛选出拟合效果最优的模型作为树高-胸径基础模 型,在基础模型中分别加入优势高、地位级、地位指数和立地形 4个不同立地质量评价指标,并引入样地效应构建非线性混 合效应模型,…查看全部>>
[Objective]The height-diameter model of Cunninghamia lanceolata large-diameter stands was developed based on different site quality evaluation index.We assessed fitting and prediction effects of the models containing different site quality evaluation index,so as to provide reference for the growth prediction and practice formulation of Cunninghamia lanceolata large-diameter stands.[Method]The Cunninghamia lanceolata large-diameter plantations in Shanghang Ba…查看全部>>
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