四川杉木单株木4种形数及其变异研究  

Form-factors and Their Variation of Individual Tree for Chinese Fir in Sichuan Province

作　　者：陶涛[1] 唐巍[1] 

机构地区：[1]四川省林业调查规划设计院,四川成都610081

出　　处：《四川林勘设计》2009年第1期15-18,共4页Sichuan Forestry Exploration and Design

摘　　要：利用四川杉木解析木材料,对胸高形数、实验形数、D形数、DH形数及其变幅率、变动系数进行了研究。结果表明:4种形数均随树高变化而变化,胸高形数、实验形数和DH形数随胸径的变化而变化;4种形数的变幅率和变动系数均随胸径、树高的变化而变化,却不因形数种类不同而有明显差异。Breast-height form-factor, experimental form-factor, D form-factor and DH form-factor and their variation patterns were studied based on the analytical wood data of Chinese fir （Cunninghamia lanceolata） in Sichuan province. The results showed that all of form-factors varied with the height of trees~ breast-height form-factor, experimental form-factor and DH form-factor varied with the breast-height diameter of trees; the variational range ratio and the variation coefficient of all form-factors varied with the breast-height diameter and the height of trees; the difference of variational range ratio and variation coefficient among the form-factors was not significant.

关 键 词：四川 杉木 单株木 形数 变异 

分 类 号：S791.270.6[农业科学—林木遗传育种] S791.27[农业科学—林学]