Fig. 4From: Phosphorus availability in relation to soil properties and forest productivity in Pinus sylvestris L. plantationsVariables plot for the first and second canonical factors of the canonical correlation analysis performed to the P fractions and calcium-related variables (Ca, exchangeable Ca; PAEM, available P; PtNaHCO3, highly labile P; PtNaOH, moderately labile P; PHCl1M, primary P; Prec, recalcitrant P)Back to article page