摘要
利用经孟宪宇改进的 Demaerschlk削度方程 ,描述了马尾松人工林干形变化规律 ,通过对其削度方程中干形参数 B的变化规律的分析 ,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、一元材种出材表、地径出材率表和林分材种出材率表编表方法 ,为实现数表系列化提供了途径 .
Utilized Demaerschlk taper equation ameliorated by Men Xian yu, the change regularities of the step form of Pine massoniana plantation and it's variable parameter B were described and analysed, and based on the auxiliary variable of ratio of height and diameter, the taper equation were built. 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 were been developed,which provide the method for complete series of tables.
出处
《福建林学院学报》
CSCD
2000年第4期294-297,共4页
Journal of Fujian College of Forestry
基金
福建省自然科学基金资助项目! ( C940 3 )
关键词
马尾松
削度方程
出材率表
材积比方程
Pine massoniana
taper equation
merchant volume table
volume ratio equation
