3.6 Composition of the main groups of soil bacterial communities
at different taxonomic levels
Fig. 5 reveals the differences in the relative abundance and ranking of
major groups of soil bacterial communities at different taxonomic levels
among the three types of sites. The top ten phyla with relative
abundance ranking for each of the three types of sites were reserved,
with a total of 14 phyla (Fig. 5A). There were significant differences
in the ranking and relative abundance of these phyla among the three
types of sites. Except for Verrucomimicrobia and Saccharibacteria, there
were significant differences in relative abundance among the three types
of sites in the other groups. The relative abundances of Proteobacteria,
Bacteroidetes, Elusimicrobia and Parcubacteria were significantly higher
in SF, the relative abundances of unclassified_k__norank and
Chlamydiae were significantly higher in PB, and the relative abundance
of Chloroflexi was significantly higher in CSF.