Fig. 4: Grazing intensity and soil clay content were primary predictors of the grazing effects on soil carbon stocks.
From: Grazing reverses climate-induced soil carbon gains on the Tibetan Plateau
a Variable importance of 12 predictors from random forest models. b, c Relationship between grazing intensity and the effects of grazing on soil carbon for different clay content classes. The black lines in (b) and (c) were based on linear (R2 = 0.23, P < 0.001, n = 133) and quadratic (R2 = 0.1, P = 0.05, n = 55) regression models, respectively, with 95% confidence intervals. We used grazing-induced aboveground biomass changes as an indicator of grazing intensity. NDVI, normalized difference vegetation index. MAT, mean annual temperature. MAP, mean annual precipitation. LRR, log response ratio.
