Fig. 3. Differences analysis of ANOSIM of 16S rRNA gene-based bacteria (A) and ITS gene-based fungi (B) between the five treatments.

R-value representes the degree of difference, generally between (0,1), among which R > 0 representes that differences between treatments. R > 0.75 means a big difference; R > 0.5 means a moderate difference; R > 0.25 means a small difference. When R is equal to or near 0 (when R is low than zero, they are considered invalid data), it indicates that there is no difference between groups. The reliability of statistical analysis is expressed by p-value, and p < 0.05 means that there are significant differences.