华南农业大学学报Issue(4)：543-547,5.
基于C2H和D2H的刨花楠幼苗生物量回归模型比较
Comparison of the Regression Models of Machilus pauhoi Biomass Based on C2H and D2H
摘要
Abstract
Machilus pauhoi is an excellent local hardwood species with ecological value and a variety of e-conomic functions in subtropical forest ecosystem .In order to estimate the biomass simply , conveniently , and accurately, the best leaf, stem, root and total biomass estimation models based on canopy diameter ( C) , diameter at ground level ( D) and plant height ( H) were chosen by using regression analysis and model selection method .The results showed that the correlation coefficient between biomass and CH ( canopy diameter multiply plant height ) , C2 H variable was the biggest and W=b0 xb1 was the best model for estimating biomass .Compared with the models with D2 H ( basal diameter square multiply plant height), the power curve models with C2H as variable had the same estimation precision.With the con-venience in real forest investigation , the models with C2 H as variable were better than those with D2 H as variable .The results should be further validated to find out whether they fit trees from different plant den-sities or the estimation of the large individual biomass or not .关键词
冠幅/株高/地径/生物量分配/生物量回归模型/刨花楠Key words
canopy diameter/plant height/diameter at ground level/biomass allocation/regression model of biomass/Machilus pauhoi分类
农业科技引用本文复制引用
徐朝斌,钟全林,程栋梁,胡松竹,常云妮,张治,胡波..基于C2H和D2H的刨花楠幼苗生物量回归模型比较[J].华南农业大学学报,2013,(4):543-547,5.基金项目
国家自然科学基金（31170596，31170374，30901151）；国家农业科技成果转化资金（2011GB2C400005）；福建省科技厅公益专项重点项目 （）
