柳杉毛虫预测预报因子─树冠级数表的研究  

Study on Crown Grade Table:Factor of Dendrolimus latipennis Forecast

作　　者：徐真旺 华宝松 林少波 赵仁友 杨少丽 

机构地区：[1]浙江省遂昌县森防站,浙江省丽水地区森防站

出　　处：《浙江林业科技》1996年第6期56-59,共4页Journal of Zhejiang Forestry Science and Technology

基　　金：森防站资助课题

摘　　要：柳杉针叶量与柳杉树高、胸径、树冠高度、树冠直径的相关分析，都呈极显著关系，但柳杉针叶重量与柳杉树冠直径取对数后关系更为密切，关系式为ｌｇＷ＝－０．０１９６９＋２．４３８２ｌｇＤ，ｒ＝０．９５６９，并以此建立柳杉树冠级数表。Analysis on correlation between leaf weight and height,D.B.H.,crownheight, crown diameter of Cryptomeria fortunei demonstrated significant difference.But after taking logarithm of leaf weight and crown diameter, the relationshipshowed closer,the formula was lgw =-0. 01969 + 2.4382lgD,r=0. 9569.The crowngrade table was established on this basis.

关 键 词：柳杉 树冠级 树冠直径 

分 类 号：S758.6[农业科学—森林经理学]