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作 者 ：刘君然

期 刊 ：林业科学 1994年 30卷 3期 页码：247-252

关键词：密度指数；林分测树因子；数学模型；可变密度收获表；密度标准表；密度控制图；

Keywords:Density index, Inventory factors, Mathematical model, Changeable density-yielding table, Density control map,

摘 要 ：以落叶松(Larix gmelinii Rupr.)天然林标准地为材料,选取30块大样本标准地,通过N=aD^(-b)得出林分测树因子数学模型。G=aSDI^b(H-1.3)^c式为密度指数、树高与断面积模型;以Y=aSDI^bX^c式为密度指数与直径、株数、断面积的模型。模型可用于编制树高标准表、直径标准表、密度标准表以及密度控制图等。

Abstract:Through the formula, N=aD^-b, two mathematical models were established with inventory factors based on 30 plots sampled in the natural stands of Larix qmelinii Rupr.(1),G=aSDI^b(H-1.3)^c and(2),Y=aSDI^bX^c where S for stand; D,density;I,indexl H,tree height and X,the number of stems.These models could be used to generate the standard tables for tree height, dbh, stand density and density control map.

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