摘要
根据1907株阔叶树野外实测数据,采用回归方程和交叉建模检验方法,对福建省现行的二元材积方程作适用性检验和修订。结果表明:福建省现行的阔叶树二元材积方程测算误差偏大,已不再适用,需要重新修订;用山本式作为阔叶树二元材积方程表达式效果最好,参数稳定,误差较小,方程可以用于实际生产。
Based on field measurement data of 1907 broadleaved tree ,the current two-entry volume equation was suitability tested and revised using the method of regression equation and cross modeling-test. The results showed that the current two-entry volume equation of broadleaved tree in Fujian province was not suitable for using and need to be revised,having larger calculation error. Using Yamamotoformulas as two-entry volume express equation of broadleaved tree had the best effect, stabilized parameters and lesser error. The current two-entry volume equation could be used in the actual production.
出处
《武夷学院学报》
2015年第3期10-14,共5页
Journal of Wuyi University
基金
国家林业局林业数表项目
关键词
阔叶树
二元材积方程
适用性检验
交叉建模
修订
broadleaved tree
two-entry volume equation
suitability test
cross modeling
revision
