Figure 7

Interactions between grassland area percentage (grassland_pct) and human activity factors predicting NPP. Curves were fitted to a conditional three-level growth model (Table S2, Model 6) and denote the trajectories of log(NPP) at mean ± 1 SD values of (A) GDP × grassland_pct, (B) HDP × grassland_pct, and (C) meat × grassland_pct.