摘要
提出了一个新的油松干曲线式,用35株油松拟合的效果较好,可以较好地反映油松树干纵断面的形状。
A new nonlinear formula of stem-form curve for Pinus tabulae formis is presented. Effect of fitting curve is better by using 35 sample trees. The formula could reflect the stem form profile better.
出处
《陕西林业科技》
北大核心
1996年第1期40-43,共4页
Shaanxi Forest Science and Technology
关键词
干曲线式
油松
树干形状
Formula of stem-form Curve
Pinus tabulae formis Carr