柳杉削度方程及材种出材率的研究  

Study on Taper Equation and Merchantable Volume Table of Crytomeria fortunei Plantation

作　　者：黄烺增 王素萍[2] 江希钿[2] 

机构地区：[1]宁德地区林业局,福建宁德355200 [2]福建农林大学林学院,福建南平353001

出　　处：《福建林学院学报》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)

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

关 键 词：柳杉 可变参数削度方程 出材率表 材积比方程 干形参数 

分 类 号：S791.310.6[农业科学—林木遗传育种]