Fig. 4
From: Soil organic carbon stabilization is influenced by microbial diversity and temperature

Effects of microbial diversity and temperature on macroaggregate-occluded POC (a), macroaggregate-occluded MAOC (b), and percentage of macroaggregates (c). Boxplots represent 25th and 75th percentile, median. Black diamonds represent the mean of each treatment, filled circles represent outliers, blue represents ambient temperature, orange represents elevated temperature. Different lowercase letters above represent significant differences at p < 0.05. Uppercase letters indicate significant differences among microbial diversity levels (p < 0.05), asterisk indicates significant difference between ambient and elevated temperature (*, p < 0.05). For variables with significant interaction effects, multiple comparisons were conducted across all six treatment combinations (3 microbial diversity levels × 2 temperature regimes), lowercase letters indicate significant differences among six treatments (p < 0.05).