My last words on taper equations
My last words on taper equations
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DOI：
10.5558/tfc80507-4
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发表时间：
2004-07-01
影响因子：
0.6
通讯作者：
Kozak, A
中科院分区：
文献类型：
--
作者：
Kozak, A
简要回顾了不列颠哥伦比亚省大学林学院近世纪来对削度方程的研究。两个新的变指数锥度模型，2001年和2002年的模型，介绍和比较Kozak的1988年和1994年的模型。基于38个物种组53603棵树的比较表明，2002年模型始终是四个模型中最好的整体模型，2001年模型是形式最简单的，也是估计商品高的最佳模型。本研究的结果还表明，几个适合的统计量和不适合的统计量应该被用来创建指数的排序锥度模型的实际应用，而不是只有几个。
A brief review of the nearly half century of research related to taper equations in the Faculty of Forestry at the University of British Columbia is presented. Two new variable-exponent taper models, the 2001 and 2002 models, are introduced and compared to Kozak's 1988 and 1994 models. This comparison, based on 38 species groups consisting of 53 603 trees, demonstrated that the 2002 model is consistently the best overall model of the four, and the 2001 model is the simplest in form and the best for estimating merchantable height. The results of this study also indicate that several fit statistics and lack-of-fit statistics should be used to create indices for ranking taper models for practical applications, instead of only a few.