首页 | 本学科首页   官方微博 | 高级检索  
     检索      

天山云杉削度方程的研究
引用本文:胥辉,侯凯.天山云杉削度方程的研究[J].新疆农业大学学报,1995(1).
作者姓名:胥辉  侯凯
摘    要:本文在总结国内外削度方程的基础上,针对天山云杉干形变化特点,提出了几个试验削度方程.并用拟合优度为评价方程的尺度,对13个方程进行了比较.最后选出天山云杉最佳削度模型.

关 键 词:削度方程  拟合优度  材种表

A Study on Taper Functions of Picea Sckrenkiana Var. tianshanica
Xu Hui, Hou Kai.A Study on Taper Functions of Picea Sckrenkiana Var. tianshanica[J].Journal of Xinjiang Agricultural University,1995(1).
Authors:Xu Hui  Hou Kai
Institution:Department of Forestry
Abstract:According to the variation characteristics of stem form of picea sckrenkiana Var. tianschanica, this paper put forward several experimental functions on the basis of summing a serious of internal and external taper functions. Thirteen functions are compared by using residual variance as a index for function evaluation, and the result shows that in all the functions, the thirteenth is the best one.
Keywords:taper function  residual variance timber  assortment table  
本文献已被 CNKI 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号