The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds
Abstract Permafrost is a considerable carbon reservoir harboring up to 1700 petagrams of carbon accumulated over millennia, which can be mobilized as permafrost thaws under global warming. Recent studies have highlighted that a fraction of this carbon can be transformed to atmospheric volatile organ...
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Nature Portfolio
2025-01-01
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| Series: | Communications Earth & Environment |
| Online Access: | https://doi.org/10.1038/s43247-025-02007-8 |
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| author | Yi Jiao Magnus Kramshøj Cleo L. Davie-Martin Bo Elberling Riikka Rinnan |
| author_facet | Yi Jiao Magnus Kramshøj Cleo L. Davie-Martin Bo Elberling Riikka Rinnan |
| author_sort | Yi Jiao |
| collection | DOAJ |
| description | Abstract Permafrost is a considerable carbon reservoir harboring up to 1700 petagrams of carbon accumulated over millennia, which can be mobilized as permafrost thaws under global warming. Recent studies have highlighted that a fraction of this carbon can be transformed to atmospheric volatile organic compounds, which can affect the atmospheric oxidizing capacity and contribute to the formation of secondary organic aerosols. In this study, active layer soils from the seasonally unfrozen layer above the permafrost were collected from two distinct locations of the Greenlandic permafrost and incubated to explore their roles in the soil-atmosphere exchange of volatile organic compounds. Results show that these soils can actively function as sinks of these compounds, despite their different physiochemical properties. Upper active layer possessed relatively higher uptake capacities; factors including soil moisture, organic matter, and microbial biomass carbon were identified as the main factors correlating with the uptake rates. Additionally, uptake coefficients for several compounds were calculated for their potential use in future model development. Correlation analysis and the varying coefficients indicate that the sink was likely biotic. The development of a deeper active layer under climate change may enhance the sink capacity and reduce the net emissions of volatile organic compounds from permafrost thaw. |
| format | Article |
| id | doaj-art-75997e4f26d848b2baf21249ea4edbf3 |
| institution | Kabale University |
| issn | 2662-4435 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| series | Communications Earth & Environment |
| spelling | doaj-art-75997e4f26d848b2baf21249ea4edbf32025-01-19T12:40:04ZengNature PortfolioCommunications Earth & Environment2662-44352025-01-016111010.1038/s43247-025-02007-8The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compoundsYi Jiao0Magnus Kramshøj1Cleo L. Davie-Martin2Bo Elberling3Riikka Rinnan4Center for Volatile Interactions (VOLT), Department of Biology, University of Copenhagen, Universitetsparken 15Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Universitetsparken 13ATerrestrial Ecology Section, Department of Biology, University of Copenhagen, Universitetsparken 13ADepartment of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10Center for Volatile Interactions (VOLT), Department of Biology, University of Copenhagen, Universitetsparken 15Abstract Permafrost is a considerable carbon reservoir harboring up to 1700 petagrams of carbon accumulated over millennia, which can be mobilized as permafrost thaws under global warming. Recent studies have highlighted that a fraction of this carbon can be transformed to atmospheric volatile organic compounds, which can affect the atmospheric oxidizing capacity and contribute to the formation of secondary organic aerosols. In this study, active layer soils from the seasonally unfrozen layer above the permafrost were collected from two distinct locations of the Greenlandic permafrost and incubated to explore their roles in the soil-atmosphere exchange of volatile organic compounds. Results show that these soils can actively function as sinks of these compounds, despite their different physiochemical properties. Upper active layer possessed relatively higher uptake capacities; factors including soil moisture, organic matter, and microbial biomass carbon were identified as the main factors correlating with the uptake rates. Additionally, uptake coefficients for several compounds were calculated for their potential use in future model development. Correlation analysis and the varying coefficients indicate that the sink was likely biotic. The development of a deeper active layer under climate change may enhance the sink capacity and reduce the net emissions of volatile organic compounds from permafrost thaw.https://doi.org/10.1038/s43247-025-02007-8 |
| spellingShingle | Yi Jiao Magnus Kramshøj Cleo L. Davie-Martin Bo Elberling Riikka Rinnan The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds Communications Earth & Environment |
| title | The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds |
| title_full | The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds |
| title_fullStr | The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds |
| title_full_unstemmed | The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds |
| title_short | The active layer soils of Greenlandic permafrost areas can function as important sinks for volatile organic compounds |
| title_sort | active layer soils of greenlandic permafrost areas can function as important sinks for volatile organic compounds |
| url | https://doi.org/10.1038/s43247-025-02007-8 |
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