According to the correlation of growth factor (independent variable) and aboveground biomass (dependent variable),the authors chose the best estimating models from onegrowth factor,twogrowth factors and severalgrowth factors by the method of principal analysis and multivariate regression and the optimum seeking principle of proper gather and average sum of squares of residual,RAW Rsquared was 0.94210.9959.The results improved the method of nondestructively measuring biomass of aboveground parts of Hippophae...
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