Fig. 2: POM volume density under different fertilizations at five experiment sites.
From: Soil macropore structure plays divergent roles in fresh and decomposed particulate organic matter
Fresh POM (green) and decomposed POM (yellow). Different lowercase letters indicate significant differences among different fertilizations (P < 0.05). Different lowercase letters above the lines denote statistically significant differences (P < 0.05) in total POM (the sum of fresh POM and decomposed POM) among the treatments. Vertical bars represent standard errors (n = 4).
