Fig. 6: Characterization of fibrous and compact particulate organic matter in different soils.

b Average Os concentration (OsCT) and average pore distance for individual, fibrous, or compact POM objects. a and c Violin plots represent marginal distributions of individual POM objects. Boxplots represent the 0%, 25%, 50%, 75, and 100% percentiles of averages for individual aggregates (n = 8) with small letters reflecting significant differences tested at p < 0.05 (n.s. not significant). d and e Average Os concentration in the soil matrix around compact and fibrous POM. Shaded areas represent two standard errors in each direction (n = 8).