Bacterial community Bacteria 9 Bacteria (microorganisms) 7 microbial activity 6 microbial community 6 species diversity 3 Aquatic ecosystems 2 Aquatic organisms 2 Bacterial diversity 2 Bacterial succession 2 Biochemical oxygen demand 2 China 2 Co-occurrence networks 2 Dissolved oxygen 2 Ecosystems 2 Lakes 2 Microbial communities 2 Microbial diversity 2 Qinghai-Xizang Plateau 2 Rivers 2 Soils 2 bacterial community 2 economic diversification 2 relative abundance 2 species occurrence 2 succession 2 'current 1 Abundant and rare subcommunity 1 Actinobacteria 1 Alfisol 1