{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Mu C"],"funding":["Gansu Science and Technology Department (Science and Technology Department of Gansu Province)","National Natural Science Foundation of China (National Science Foundation of China)"],"pagination":["2404"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11894136"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["16(1)"],"pubmed_abstract":["Thermokarst lakes, serving as significant sources of methane (CH<sub>4</sub>), play a crucial role in affecting the feedback of permafrost carbon cycle to global warming. However, accurately assessing CH<sub>4</sub> emissions from these lakes remains challenging due to limited observations during lake ice melting periods. In this study, by integrating field surveys with machine learning modeling, we offer a comprehensive assessment of present and future CH<sub>4</sub> emissions from thermokarst lakes on the Tibetan Plateau. Our results reveal that the previously underestimated CH<sub>4</sub> release from lake ice bubble and water storage during ice melting periods is 11.2 ± 1.6 Gg C of CH<sub>4</sub>, accounting for 17 ± 4% of the annual total release from lakes. Despite thermokarst lakes cover only 0.2% of the permafrost area, they annually emit 65.5 ± 10.0 Gg C of CH<sub>4</sub>, which offsets 6.4% of the net carbon sink in alpine grasslands on the plateau. Considering the loss of lake ice, the expansion of thermokarst lakes is projected to lead to 1.1-1.2 folds increase in CH<sub>4</sub> emissions by 2100. Our study allows foreseeing future CH<sub>4</sub> emissions from the rapid expanding thermokarst lakes and sheds new lights on processes controlling the carbon-climate feedback in alpine permafrost ecosystems."],"journal":["Nature communications"],"pubmed_title":["Methane emissions from thermokarst lakes must emphasize the ice-melting impact on the Tibetan Plateau."],"pmcid":["PMC11894136"],"funding_grant_id":["42371132","23JRRA1171","42161160328"],"pubmed_authors":["Peng X","Zhang G","Li D","Song C","Wang G","Song J","Mu C","Zhou Z","Wang L","Mu M","Yang Y","Zhang Z","Jia Y","Zhang C","Lei P","Fan C"],"additional_accession":[]},"is_claimable":false,"name":"Methane emissions from thermokarst lakes must emphasize the ice-melting impact on the Tibetan Plateau.","description":"Thermokarst lakes, serving as significant sources of methane (CH<sub>4</sub>), play a crucial role in affecting the feedback of permafrost carbon cycle to global warming. However, accurately assessing CH<sub>4</sub> emissions from these lakes remains challenging due to limited observations during lake ice melting periods. In this study, by integrating field surveys with machine learning modeling, we offer a comprehensive assessment of present and future CH<sub>4</sub> emissions from thermokarst lakes on the Tibetan Plateau. Our results reveal that the previously underestimated CH<sub>4</sub> release from lake ice bubble and water storage during ice melting periods is 11.2 ± 1.6 Gg C of CH<sub>4</sub>, accounting for 17 ± 4% of the annual total release from lakes. Despite thermokarst lakes cover only 0.2% of the permafrost area, they annually emit 65.5 ± 10.0 Gg C of CH<sub>4</sub>, which offsets 6.4% of the net carbon sink in alpine grasslands on the plateau. Considering the loss of lake ice, the expansion of thermokarst lakes is projected to lead to 1.1-1.2 folds increase in CH<sub>4</sub> emissions by 2100. Our study allows foreseeing future CH<sub>4</sub> emissions from the rapid expanding thermokarst lakes and sheds new lights on processes controlling the carbon-climate feedback in alpine permafrost ecosystems.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Mar","modification":"2025-04-04T20:25:23.272Z","creation":"2025-04-04T20:25:23.272Z"},"accession":"S-EPMC11894136","cross_references":{"pubmed":["40064902"],"doi":["10.1038/s41467-025-57745-2"]}}