Fig. 3From: Chemical composition of lignocellulosic biomass in the wood of Abies religiosa across an altitudinal gradientPrincipal component analysis (PCA) of ATR-FTIR characterization: a Scatter diagram of scores PC1 and PC2 (principal component 1 and 2) b and between PC1 and PC3 (principal component 1 and 3). Scatter diagrams show the samples and the correlations between variablesBack to article page