Fig. 5

Effects of sulfur on bacterial (a) and fungal (b) co-occurrence networks. The distinct bacterial and fungal taxa at the phylum level are represented by different colors. The magnitude of each node is commensurate with its degree. A link signifies a robust correlation (Spearman’s r > 0.8) with statistical significance (p-value < 0.01). Positive correlations are depicted by red edges, while negative interactions between two nodes are indicated by blue edges