湖北林业科技

Accurate prediction of tree biomass is of great significance for evaluating carbon storage and carbon sequestration capacity of trees. Therefore, this study utilized field investigation data on the biomass of trunks, bark, branches, and needles, with the diameter at breast height（DBH) of individual trees as the single variable, to construct a compatible biomass prediction model for various organs of artificial Pinus koraiensis. The constructed model was subsequently tested for accuracy.The result show that except for leaf biomass, the goodness of fit（R) of trunk, branch and bark biomass of the established compatible biomass models were all greater than 0.92, and the root mean square error（RMSE) of trunk biomass and total biomass was large, and the rest organs ranged from 1-20kg. The mean absolute error（MAE) for each organ varied from 1 to 15kg. The overall fitting effect of the model was good.By independent sample testing, the MAE of each organ ranged from 1.32kg to 14.38kg, and the MAPE ranged from 9.31% to 40.00%. Overall, the compatible biomass prediction model for aboveground parts of Pinus koraiensis established in this study exhibited strong fitting performance and predictive capability, the aboveground biomass can be effectively predicted.