5 | CONCLUSIONS
In this study, there were significant differences among the soil rhizosphere microorganisms in samples from Masson pine families with different carbon sequestration abilities. With the increase in the carbon sequestration ability of the families, the dominant phylum of the soil rhizospheric bacteria changed from Proteobacteria to Acidobacteria, and the dominant phylum of fungi changed from Ascomycota to Basidiomycota. Compared with bacteria, fungi were more sensitive to carbon sequestration by Masson pine. On the other hand, by comparing the rhizosphere bacterial and fungal genera among samples from different families, we discovered a rich core bacterial and a fungal community, indicating the homogeneity of rhizosphere microbial diversity as the carbon sequestration activity of Masson pine varied. A significant proportion of the core microbiome was involved in carbon metabolism; these microorganisms might be better adapted to the acidic conditions of the native soil and respond more efficiently to root signals than other microorganisms. The composition and abundance of rhizosphere bacterial and fungal communities were greatly affected by the soil carbon content, soil moisture and altitude but were less affected by soil pH (exceptSaitozyma ). This experiment provides early guidance for future in-depth research on the specific mechanisms and patterns of the soil microbial response to carbon sequestration by Masson pine.