Linear regression indicating the correlation between the groups of habitats formed by floristic similarity of the plots (Axis 1 = scores NMDS 1) and the variables pH (H₂O; Y = -1.4631 + 0.2747×X; R2 =  0.3591) and Aluminum (meq%; Y = 0.25472 - 0.65102×X; R2 =  0.3534). Groups of habitat: 1 – mosaic of savanna park-land with shrubby savanna / well drained (SAV-1); 2 – shrubby savanna / well drained (SAV-2); 3 – wet grassland / poorly drained (SAV-3).