Fig. 5

Composition of 16S rDNA species communities. a Relative abundance of bacterial communities at the phylum level. b Nonmetric multidimensional scale (NMDS) ordering of ASV-level data. c Clade map of LEfSe analysis of major bacterial differential microbiota in eight regions. Each small circle on a different classification level represents a classification at that level, and the diameter of the small circle is proportional to the relative abundance. The coloring principle is to uniformly color the species with no significant difference as yellow and the other species with differences according to the species. The most abundant groupings are colored. d Bacterial association network analysis diagram. The nodes represent individual family, and the size of the nodes represents the average relative abundance in the sample. The connections between the nodes indicate a correlation between the two family, the red line indicates a positive correlation, and the blue line indicates a negative correlation. The thickness of the line is proportional to the correlation between family, and the thicker the line, the stronger is the correlation. At the same time, the more connections through a node, the more closely related the family are to other members of the flora