highly significantP < 0.001
Type-III ANOVA identified highly significant main effects of grazing (F = 62.67, P < 0.001, partial η 2 = 0.68) and fertilization (F = 14.44, P < 0.001, partial η 2 = 0.49), with a moderate interaction effect (F = 4.00, P = 0.029, partial η 2 = 0.21; Supplementary Table 1 ).