<p>Soil organic carbon (SOC) stocks (Mg C ha ⁻ ¹) in four soil layers (0–10, 10–30, 30–50, and 50–100 cm) and cumulatively (0–100 cm) across different pasture treatments of <i>Urochloa humidicola</i> and the CBS. Different letters indicate statistically significant differences between treatments within each depth (Tukey’s HSD, α = 0.05). For cumulative SOC stocks, comparisons were performed using Kruskal–Wallis test followed by Bonferroni-adjusted Dunn’s post-hoc tests.</p>

Soil organic carbon (SOC) stocks (Mg C ha ⁻ ¹) in four soil layers (0–10, 10–30, 30–50, and 50–100 cm) and cumulatively (0–100 cm) across different pasture treatments of Urochloa humidicola and the CBS. Different letters indicate statistically significant differences between treatments within each depth (Tukey’s HSD, α = 0.05). For cumulative SOC stocks, comparisons were performed using Kruskal–Wallis test followed by Bonferroni-adjusted Dunn’s post-hoc tests.