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- Campeau, AudreySwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Uppsala universitet,Luft-, vatten- och landskapslära,Swedish Univ Agr Sci, Dept Forest Ecol & Management, Umeå, Sweden,Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden; Department of Air, Water and Landscape, Uppsala University, Uppsala, Sweden,Institutionen för skogens ekologi och skötsel,Uppsala University (author)
Autumn destabilization of deep porewater CO2 store in a northern peatland driven by turbulent diffusion
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- 2021-11-25
- Springer Nature,2021
- electronicrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:uu-461736
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-461736URI
- https://doi.org/10.1038/s41467-021-27059-0DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-190633URI
- https://res.slu.se/id/publ/114968URI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- The deep porewater of northern peatlands stores large amounts of carbon dioxide (CO2). This store is viewed as a stable feature in the peatland CO2 cycle. Here, we report large and rapid fluctuations in deep porewater CO2 concentration recurring every autumn over four consecutive years in a boreal peatland. Estimates of the vertical diffusion of heat indicate that CO2 diffusion occurs at the turbulent rather than molecular rate. The weakening of porewater thermal stratification in autumn likely increases turbulent diffusion, thus fostering a rapid diffusion of deeper porewater CO2 towards the surface where net losses occur. This phenomenon periodically decreases the peat porewater CO2 store by between 29 and 90 g C m−2 throughout autumn, which is comparable to the peatland’s annual C-sink. Our results establish the need to consider the role of turbulent diffusion in regularly destabilizing the CO2 store in peat porewater.
Subject headings and genre
- NATURVETENSKAP Geovetenskap och miljövetenskap Geokemi hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Geochemistry hsv//eng
- NATURVETENSKAP Geovetenskap och miljövetenskap Miljövetenskap hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Environmental Sciences hsv//eng
- NATURVETENSKAP Geovetenskap och miljövetenskap Klimatforskning hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Climate Research hsv//eng
- NATURVETENSKAP Geovetenskap och miljövetenskap Oceanografi, hydrologi och vattenresurser hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Oceanography, Hydrology and Water Resources hsv//eng
Added entries (persons, corporate bodies, meetings, titles ...)
- Vachon, DominicUmeå universitet,Institutionen för ekologi, miljö och geovetenskap,Umeå Univ, Dept Ecol & Environm Sci, Umeå, Sweden.(Swepub:umu)dova0005 (author)
- Bishop, KevinSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment(Swepub:slu)47741 (author)
- Nilsson, MatsSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management(Swepub:slu)47620 (author)
- Wallin, Marcus B.,1979-Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Uppsala universitet,Luft-, vatten- och landskapslära,Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Uppsala, Sweden.,Department of Air, Water and Landscape, Uppsala University, Uppsala, Sweden; Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Uppsala University(Swepub:slu)52221 (author)
- Uppsala universitetLuft-, vatten- och landskapslära (creator_code:org_t)
- Sveriges lantbruksuniversitet
Related titles
- In:Nature Communications: Springer Nature12:12041-1723
Internet link
- https://doi.org/10.1038/s41467-021-27059-0Fulltext
- https://uu.diva-portal.org/smash/get/diva2:1633693/FULLTEXT01.pdffulltext:print
- https://www.nature.com/articles/s41467-021-27059-0.pdf
- https://umu.diva-portal.org/smash/get/diva2:1622513/FULLTEXT01.pdffulltext:print
- https://pub.epsilon.slu.se/id/eprint/26939/contentsFULLTEXT
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-461736
- https://doi.org/10.1038/s41467-021-27059-0
- https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-190633
- https://res.slu.se/id/publ/114968
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