This study focused on the Pinus koraiensis plantations in Dabiangou Forest Farm in Liaoning Province.Four single-needle biomass models were selected as candidate models.Based on the analytical data of branches from 36 P.koraiensis trees,the optimal basic model was selected.Furthermore,a mixed-effects model for single-needle biomass of P.koraiensis plantations was constructed by introducing sample plots as random effects.The re-sults showed that the model W=aDbHc was the best basic model for fitting the biomass of P.koraiensis leaves in the study area.Compared with the basic model,the goodness of fit of the mixed-effects model was significantly im-proved,and the residual distribution was more convergent and uniform.The final mixed-effects model selected in this study can effectively estimate the leaf biomass of P.koraiensis in the mountainous area of eastern Liaoning,providing a valuable reference for the management and operation of P.koraiensis plantations.
关键词
辽东山区/红松/叶生物量/混合效应模型
Key words
mountainous area of eastern Liaoning/P.koraiensis/leaf biomass/mixed-effects model
维普
万方数据