摘要
利用 Demaerschlk削度方程 ,描述柳杉人工林干形变化规律 ,通过对其削度方程中干形参数变化规律的分析 ,建立了以高径比为辅助变量的可变参数削度方程 ;在此基础上 ,提出了二元材种出材率表、一元材种出材率表、地径出材率表的编表方法 。
Utilizing Demaerschlk taper equation ameliorated,the change regularity for step form of crytomeria fortunei plantation has been described,and taper equation of the variable parameter based on the auxiliary variable of ratio of height and diameter has been built by analyzing the change regularity of step in its taper equation Further more,the merchant volume table of two way log type,the merchant volume table of one way log type,the merchant volume table of ground diameter and the merchant volume table of stand log type have been developed
出处
《福建林学院学报》
CSCD
北大核心
2002年第1期74-77,共4页
Journal of Fujian College of Forestry
基金
福建省自然科学基金资助项目 (B0 0 10 0 19)
