表示树干上各部位的直径（带皮或去皮）d为该干径位置距地面高h、全树高H及胸高直径D的数学函数，称为削度方程(Taper equation)，即d=f(h,H,D)。
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From the study of tree trunks described in Forest mensuration, the classic curve-derived were chosen to deduct the taper equation of variable parameters, which is reliable in theoretical basis.
从测树学中对树干形状的描述出发,选择经典的孔兹干曲线式推导出可变参数的削度方程,理论依据可靠。
参考来源 - 尾叶桉人工林材积表和出材率表的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
In this paper a compatible segmented taper equation and a compatible volume ratio equation are developed.
本文提出了一致性分段式削度方程和一致性材积比方程。
From the study of tree trunks described in Forest mensuration, the classic curve-derived were chosen to deduct the taper equation of variable parameters, which is reliable in theoretical basis.
从测树学中对树干形状的描述出发，选择经典的孔兹干曲线式推导出可变参数的削度方程，理论依据可靠。
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