Fig. 4: Average distance of POM to pores under different fertilizations at five experiment sites.
From: Soil macropore structure plays divergent roles in fresh and decomposed particulate organic matter
Distance of fresh POM (a) and decomposed POM (b) to pores under the control (black), NPK (yellow), and NPKM (green) treatments at five experiment sites (n = 4). Different lowercase letters indicate significant differences among different fertilizations (P < 0.05). Vertical bars represent standard errors (n = 4).
