3.6 Microbial networks and topological properties
Based on the Spearman correlation (p <0.05) between soil
physical and chemical properties, metal groups, bacteria, and fungi ASVs
levels (relative abundance >0.1%), microbial networks in
three types of soils were constructed (Fig. 7 ). The results
show that compared with control, the number of points, connections,
average degree, modularity, and module books in PS and OS networks are
gradually reduced. Interestingly, in the PS network, the proportion of
positive connections decreased significantly to 55.4%, and in the OS
network, the number of positive connections rebounded to 60.8%. In
addition, the network survivability test results show that the stability
of the three networks from high to low is Control, PS, and OS.