Parameter estimates of the fixed-effects model (fitted by OLS, FMOLS) and the recommended mixed-effects model (expanding a1 and b3 with random effects, MM3), fitted using the whole data set.

σi,a12, σi,b32 and σi, a1, b3, variances and covariance of random effects in parameters a1 and b3 at plot level; σij,a12, σij,b32 and σij, a1, b3, variances and covariance of random effects in parameters a1 and b3 at tree level; σ2, residual variance; δ parameter of power function. Note that the σ2 of the mixed-effects model must be multiplied by g = dδ when applied (variance obtained from ordinary residuals is 0.6866).Parameter estimates of the fixed-effects model (fitted by OLS, FMOLS) and the recommended mixed-effects model (expanding a1 and b3 with random effects, MM3), fitted using the whole data set.