To compare the rhizosphere communities under Masson pine trees with
different carbon sequestration abilities, we sampled three families of
Masson pine that showed significant differences in their carbon
sequestration ability and conducted high-throughput sequencing of the
16S rRNA and ITS in the corresponding soil samples. The diversity of
rhizosphere soil microorganisms, the patterns of differences in relative
abundance among the different samples and the responses of
microorganisms to environmental factors were analyzed. There was no
significant difference in the diversity of soil bacteria or fungi among
the different samples from Masson pine families with different carbon
sequestration abilities, but with the increase in carbon sequestration,
the dominant phyla of bacteria and fungi changed. The dominant phylum of
soil bacteria changed from Proteobacteria to Acidobacteria, and that of
fungi changed from Ascomycota to Basidiomycota. In addition, we
investigated the core microbial communities at the genus level among the
different samples, and a significant portion of the core genera were
involved in carbon metabolism. The microbial communities were greatly
influenced by environmental factors such as soil carbon content, soil
moisture and altitude. Soil fungi were more sensitive than soil fungi to
the rhizosphere activity of Masson pine.