Exploring methanogenic archaea and their thermal responses in the glacier-fed stream sediments of Rongbuk River Basin, Mt. Everest DOI Open Access
Wei Ma, Lin Miao, Peiyi Shen

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 15, 2024

Abstract Glacier-fed streams (GFS) are emergent sources of greenhouse gas methane, and methanogenic archaea in sediments contribute largely to stream methane emissions. However, little is known about the communities GFS their key environmental driving factors. This study analyzed from Rongbuk River basin on Mount Everest for temperature responses through anaerobic microcosm incubations at 5°C 15°C. Diverse methanogens were identified, including acetoclastic, hydrogenotrophic, methylotrophic types. Substantial CO 2 production detected across altitudes increased significantly 15°C, with both rate negatively correlated altitude. While sensitivity but not CH 4 showed a negative altitude correlation. Methanogens substantially over long-term incubation, dominating archaeal community. At relative abundance several groups was strongly altitude, positive correlations observed Methanomassiliicoccaceae Methanoregulaceae , Methanocellaceae Methanotrichaceae respectively. Besides factors like phosphorus, C-to-N ratio, pH also affected structure, production, sensitivities. offers new insights into sediments, improving our understanding carbon cycling its potential climate change.

Language: Английский

Carbon dioxide and methane fluxes in different waterbodies in Inexpressible Island, Ross Sea, East Antarctica DOI

Zhiheng Du,

Lei Wang, Simin Xie

et al.

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 213, P. 117703 - 117703

Published: Feb. 17, 2025

Language: Английский

Citations

0
Atmospheric CO2 sink caused by enhanced chemical weathering in the Rongbuk glacier runoff at the initial ablation, Mt. Qomolangma (Everest) DOI
Haiying Qiu, Guangjian Wu, Zhengliang Yu

et al.

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133200 - 133200

Published: March 1, 2025

Language: Английский

Citations

0
Identification of carbon dioxide and methane emission characteristic across Heihe River, China DOI

Wenhan Hu,

Zhiheng Du,

Lei Wang

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 977, P. 179175 - 179175

Published: April 11, 2025

Language: Английский

Citations

0
CH4 and CO2 emissions and dissolved carbon exporting in rivers on the upper Lanzhou section of the Yellow River, China DOI Creative Commons

Zhiheng Du,

Hao Cui, Fangping Yan

et al.

Geoscience Frontiers, Journal Year: 2025, Volume and Issue: unknown, P. 102057 - 102057

Published: April 1, 2025

Language: Английский

Citations

0
Exploring methanogenic archaea and their thermal responses in the glacier-fed stream sediments of Rongbuk River Basin, Mt. Everest DOI Open Access
Wei Ma, Lin Miao, Peiyi Shen

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 15, 2024

Abstract Glacier-fed streams (GFS) are emergent sources of greenhouse gas methane, and methanogenic archaea in sediments contribute largely to stream methane emissions. However, little is known about the communities GFS their key environmental driving factors. This study analyzed from Rongbuk River basin on Mount Everest for temperature responses through anaerobic microcosm incubations at 5°C 15°C. Diverse methanogens were identified, including acetoclastic, hydrogenotrophic, methylotrophic types. Substantial CO 2 production detected across altitudes increased significantly 15°C, with both rate negatively correlated altitude. While sensitivity but not CH 4 showed a negative altitude correlation. Methanogens substantially over long-term incubation, dominating archaeal community. At relative abundance several groups was strongly altitude, positive correlations observed Methanomassiliicoccaceae Methanoregulaceae , Methanocellaceae Methanotrichaceae respectively. Besides factors like phosphorus, C-to-N ratio, pH also affected structure, production, sensitivities. offers new insights into sediments, improving our understanding carbon cycling its potential climate change.

Language: Английский

Citations

0