[Responses of Different Degradation Stages of Alpine Wetland on Soil Microbial Community in the Yellow River Source Zone]

MiSeq sequencing technology was used to analyze the microbial community diversity of soil in alpine wetlands to understand the degradation processes and environmental factors in these areas. The results showed that the severity of soil degradation changed the species diversity of soil microorganisms at the level of OTUs, and grass patches contained more species than frozen-thawing patches. The soil fungi species of OTUs changed significantly. The diversity indexes of bacteria (between the frozen-thawing patches and the grass patches) were higher than that of fungi. The dominant microbial species were consistent among different degradation stages. The dominant species of bacteria and fungi were Proteobacteria and RB41, and Ascomycota and