Distribution characteristics of soil active organic carbon at different elevations and its effects on microbial communities in southeast Tibet DOI Creative Commons

Fanglin Ran,

Chenni Zhou,

J Wang

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Oct. 23, 2024

Global mountain ecosystems have garnered significant attention due to their rich biodiversity and crucial ecological functions; however, there is a dearth of research on the variations in soil active organic carbon across altitudinal gradients impacts microbial communities. In this study, samples at an altitude 3,800 m 4,400 were collected from Sejira Mountain southeast Tibet, components, community diversity, composition structure distribution relationships systematically analyzed. The results revealed non-linear relationship between elevation contents (SOC) easily oxidized (ROC), with initial increase followed by subsequent decrease, reaching peak 4,200 m. Shannon diversity bacteria exhibited decrease increasing altitude, whereas no change was observed fungi. bacterial primarily comprised Acidobacteria, Proteobacteria, Chloroflexi, Actinobacteriota. Among them, relative abundance Proteobacteria negative correlation Actinobacteriota demonstrated positive elevation. fungal communities consisted Basidiomycota, Ascomycota, Mortierellomycota, Ascomycota prevailing lower altitudes Basidiomycota dominating higher altitudes. influenced SOC, ROC, POC (particulate carbon). Soil carbon-to-nitrogen ratio (C/N), dissolved (DOC), available phosphorus (AP) emerged as key factors influencing while played pivotal role shaping community. conclusion, we believe that components had greater impact primary forest ecosystem Tibet gradient increasing, which provided theoretical basis for further understanding cycle plateau under background climate change.

Language: Английский

Distribution characteristics of soil active organic carbon at different elevations and its effects on microbial communities in southeast Tibet DOI Creative Commons

Fanglin Ran,

Chenni Zhou,

J Wang

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Oct. 23, 2024

Global mountain ecosystems have garnered significant attention due to their rich biodiversity and crucial ecological functions; however, there is a dearth of research on the variations in soil active organic carbon across altitudinal gradients impacts microbial communities. In this study, samples at an altitude 3,800 m 4,400 were collected from Sejira Mountain southeast Tibet, components, community diversity, composition structure distribution relationships systematically analyzed. The results revealed non-linear relationship between elevation contents (SOC) easily oxidized (ROC), with initial increase followed by subsequent decrease, reaching peak 4,200 m. Shannon diversity bacteria exhibited decrease increasing altitude, whereas no change was observed fungi. bacterial primarily comprised Acidobacteria, Proteobacteria, Chloroflexi, Actinobacteriota. Among them, relative abundance Proteobacteria negative correlation Actinobacteriota demonstrated positive elevation. fungal communities consisted Basidiomycota, Ascomycota, Mortierellomycota, Ascomycota prevailing lower altitudes Basidiomycota dominating higher altitudes. influenced SOC, ROC, POC (particulate carbon). Soil carbon-to-nitrogen ratio (C/N), dissolved (DOC), available phosphorus (AP) emerged as key factors influencing while played pivotal role shaping community. conclusion, we believe that components had greater impact primary forest ecosystem Tibet gradient increasing, which provided theoretical basis for further understanding cycle plateau under background climate change.

Language: Английский

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