Soil moisture and microbiome explain greenhouse gas exchange in global peatlands
Abstract Earth’s climate is tightly connected to carbon and nitrogen exchange between the atmosphere and ecosystems. Wet peatland ecosystems take up carbon dioxide in plants and accumulate organic carbon in soil but release methane. Man-made drainage releases carbon dioxide and nitrous oxide from pe...
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Nature Portfolio
2025-03-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-92891-z |
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| author | Jaan Pärn Sandeep Thayamkottu Maarja Öpik Mohammad Bahram Leho Tedersoo Mikk Espenberg John Alexander Davison Kuno Kasak Martin Maddison Ülo Niinemets Ivika Ostonen Kaido Soosaar Kristina Sohar Martin Zobel Ülo Mander |
| author_facet | Jaan Pärn Sandeep Thayamkottu Maarja Öpik Mohammad Bahram Leho Tedersoo Mikk Espenberg John Alexander Davison Kuno Kasak Martin Maddison Ülo Niinemets Ivika Ostonen Kaido Soosaar Kristina Sohar Martin Zobel Ülo Mander |
| author_sort | Jaan Pärn |
| collection | DOAJ |
| description | Abstract Earth’s climate is tightly connected to carbon and nitrogen exchange between the atmosphere and ecosystems. Wet peatland ecosystems take up carbon dioxide in plants and accumulate organic carbon in soil but release methane. Man-made drainage releases carbon dioxide and nitrous oxide from peat soils. Carbon and nitrous gas exchange and their relationships with environmental conditions are poorly understood. Here, we show that open peatlands in both their wet and dry extremes are greenhouse gas sinks while peat carbon/nitrogen ratios are high and prokaryotic (bacterial and archaeal) abundances are low. Conversely, peatlands with moderate soil moisture levels emit carbon dioxide and nitrous oxide, while prokaryotic abundances are high. The results challenge the current assumption of a uniform effect of drainage on greenhouse gas emissions and show that the peat microbiome of greenhouse-gas sources differs fundamentally from sinks. |
| format | Article |
| id | doaj-art-c2fc300f71df4c93b596cb5b9f8d5535 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-c2fc300f71df4c93b596cb5b9f8d55352025-08-20T03:42:39ZengNature PortfolioScientific Reports2045-23222025-03-011511910.1038/s41598-025-92891-zSoil moisture and microbiome explain greenhouse gas exchange in global peatlandsJaan Pärn0Sandeep Thayamkottu1Maarja Öpik2Mohammad Bahram3Leho Tedersoo4Mikk Espenberg5John Alexander Davison6Kuno Kasak7Martin Maddison8Ülo Niinemets9Ivika Ostonen10Kaido Soosaar11Kristina Sohar12Martin Zobel13Ülo Mander14Department of Geography, Institute of Ecology and Earth Sciences, University of TartuDepartment of Geography, Institute of Ecology and Earth Sciences, University of TartuDepartment of Botany, Institute of Ecology and Earth Sciences, University of TartuDepartment of Ecology, Swedish University of Agricultural SciencesMycology and Microbiology Center, University of TartuDepartment of Geography, Institute of Ecology and Earth Sciences, University of TartuDepartment of Botany, Institute of Ecology and Earth Sciences, University of TartuDepartment of Geography, Institute of Ecology and Earth Sciences, University of TartuDepartment of Geography, Institute of Ecology and Earth Sciences, University of TartuInstitute of Agricultural and Environmental Sciences, Estonian University of Life SciencesDepartment of Geography, Institute of Ecology and Earth Sciences, University of TartuDepartment of Geography, Institute of Ecology and Earth Sciences, University of TartuDepartment of Geography, Institute of Ecology and Earth Sciences, University of TartuDepartment of Botany, Institute of Ecology and Earth Sciences, University of TartuDepartment of Geography, Institute of Ecology and Earth Sciences, University of TartuAbstract Earth’s climate is tightly connected to carbon and nitrogen exchange between the atmosphere and ecosystems. Wet peatland ecosystems take up carbon dioxide in plants and accumulate organic carbon in soil but release methane. Man-made drainage releases carbon dioxide and nitrous oxide from peat soils. Carbon and nitrous gas exchange and their relationships with environmental conditions are poorly understood. Here, we show that open peatlands in both their wet and dry extremes are greenhouse gas sinks while peat carbon/nitrogen ratios are high and prokaryotic (bacterial and archaeal) abundances are low. Conversely, peatlands with moderate soil moisture levels emit carbon dioxide and nitrous oxide, while prokaryotic abundances are high. The results challenge the current assumption of a uniform effect of drainage on greenhouse gas emissions and show that the peat microbiome of greenhouse-gas sources differs fundamentally from sinks.https://doi.org/10.1038/s41598-025-92891-z |
| spellingShingle | Jaan Pärn Sandeep Thayamkottu Maarja Öpik Mohammad Bahram Leho Tedersoo Mikk Espenberg John Alexander Davison Kuno Kasak Martin Maddison Ülo Niinemets Ivika Ostonen Kaido Soosaar Kristina Sohar Martin Zobel Ülo Mander Soil moisture and microbiome explain greenhouse gas exchange in global peatlands Scientific Reports |
| title | Soil moisture and microbiome explain greenhouse gas exchange in global peatlands |
| title_full | Soil moisture and microbiome explain greenhouse gas exchange in global peatlands |
| title_fullStr | Soil moisture and microbiome explain greenhouse gas exchange in global peatlands |
| title_full_unstemmed | Soil moisture and microbiome explain greenhouse gas exchange in global peatlands |
| title_short | Soil moisture and microbiome explain greenhouse gas exchange in global peatlands |
| title_sort | soil moisture and microbiome explain greenhouse gas exchange in global peatlands |
| url | https://doi.org/10.1038/s41598-025-92891-z |
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