Fig. 4
From: Using soil bacterial communities to predict physico-chemical variables and soil quality
Predicted a–g soil variable values or h, i PCA axes scores based on random forest regression analyses versus actual values. Models were based on either (in grey) all sites belonging to a managed land use type (AM; horticulture, exotic or pastoral grassland) or (in green) sites belonging to non-pastoral grassland managed land uses (NPG). Dashed black lines indicate where points should fall for a perfect prediction. Adjusted R2 and slope values for each linear regression are indicated on the plots