所谓削度是指直径随高度的增加而变细的缓急程度, 其数学表达式称削度方程。在林业上, 通常把削度一词也理解为描述树干形状之意, 因此, 削度方程亦常称干曲线方程。它的主要功能是: 估计树干任意处的直径和计算树干总材积; 计算从伐根高度至任意小头直径的商品材积和长度; 推算各段原本的材积及不同材种出材率。
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
本文提出了一致性分段式削度方程和一致性材积比方程。
In this paper a compatible segmented taper equation and a compatible volume ratio equation are developed.
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。
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.
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