[Relationship between soil bacterial community and environmental factors in the degraded alpine grassland of eastern Qilian Mountains, China].

To explore the distribution of bacterial community and its relationship with soil environmental factors in degraded alpine grasslands in the eastern Qilian Mountains, we analyzed the changes of bacterial community structure and diversity across lightly, moderately and severely degraded grasslands by using high-throughput sequencing technology. Redundancy analysis (RDA) was performed to analyze the relationship between soil bacterial communities and soil environmental factors by using CANOCO 4.5 software.