Fig. 3
Observed and predicted leaf and branch biomass utilizing the simultaneous adjustment Eqs. 1, 2, 5, 6, 7, and 10 and the literature models from the references 1–3 for the model comparison data (n = 85). Wl leaf biomass (kg, dry matter), Wb branch biomass (kg, dry matter), PRED predicted values, OBS measured values, R2 coefficient of determination, defined as the square correlation coefficient between the measured and estimated values. Refs 1, 2, and 3 are studies of Pérez-Cruzado et al. (2011), Merino et al. (2005), and António et al. (2007), respectively