Objective:Models for calculating tree accumulation and aboveground biomass of natural spruce in Xinjiang was established to provide basic data for estimating carbon storage and productivity of spruce.Methods:Fifty plants each of Picea obovata and Picea schrenkiana in Xinjiang were collect-ed by the harvest method.With accumulation as independent variable and aboveground biomass as de-pendent variable,four biomass models were employed for regression analysis to build models,and the optimal biomass model was screened out by comprehensive model evaluation,stability of parameter es-timation,and relative error.Results:W = 0.515V0.926(R2 = 0.980)was the P.obovata estimation model,and W = 0.541V0.953(R2 = 0.954)was the P.schrenkiana estimation model.Conclusion:Xinjiang spruce accumulation and aboveground biomass were highly significantly correlated,and the four estimation models were best fitted by power function.
维普
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