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Carbon loss from no...
Carbon loss from northern circumpolar permafrost soils amplified by rhizosphere priming
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- Keuper, Frida (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,BioEcoAgro Joint Research Unit, INRAE, Barenton-Bugny, France
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- Wild, Birgit (author)
- Stockholms universitet,Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,Institutionen för miljövetenskap,University of Gothenburg, Sweden
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Kummu, M. (author)
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- Beer, Christian (author)
- Stockholms universitet,Institutionen för miljövetenskap,Universität Hamburg, Germany
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- Blume-Werry, Gesche, 1985- (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Experimental Plant Ecology, Institute of Botany and Landscape Ecology, Greifswald University, Greifswald, Germany
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Fontaine, S. (author)
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- Gavazov, Konstantin, 1983- (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Lausanne, Switzerland
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Gentsch, N. (author)
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Guggenberger, G. (author)
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- Hugelius, Gustaf (author)
- Stockholms universitet,Institutionen för naturgeografi
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Jalava, M. (author)
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Koven, C. (author)
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- Krab, Eveline J. (author)
- Umeå universitet,Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment,Umeå University,Institutionen för ekologi, miljö och geovetenskap,Department of Soil and Environment, Swedish University of Agricultural Sciences, Uppsala, Sweden
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- Kuhry, Peter (author)
- Stockholms universitet,Institutionen för naturgeografi
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- Monteux, Sylvain (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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Richter, A. (author)
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Shahzad, T. (author)
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Weedon, J. T. (author)
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- Dorrepaal, Ellen (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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(creator_code:org_t)
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- 2020-07-20
- 2020
- English.
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In: Nature Geoscience. - : Springer Science and Business Media LLC. - 1752-0894 .- 1752-0908. ; 13, s. 560-565
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Abstract
Subject headings
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- As global temperatures continue to rise, a key uncertainty of climate projections is the microbial decomposition of vast organic carbon stocks in thawing permafrost soils. Decomposition rates can accelerate up to fourfold in the presence of plant roots, and this mechanism-termed the rhizosphere priming effect-may be especially relevant to thawing permafrost soils as rising temperatures also stimulate plant productivity in the Arctic. However, priming is currently not explicitly included in any model projections of future carbon losses from the permafrost area. Here, we combine high-resolution spatial and depth-resolved datasets of key plant and permafrost properties with empirical relationships of priming effects from living plants on microbial respiration. We show that rhizosphere priming amplifies overall soil respiration in permafrost-affected ecosystems by similar to 12%, which translates to a priming-induced absolute loss of similar to 40 Pg soil carbon from the northern permafrost area by 2100. Our findings highlight the need to include fine-scale ecological interactions in order to accurately predict large-scale greenhouse gas emissions, and suggest even tighter restrictions on the estimated 200 Pg anthropogenic carbon emission budget to keep global warming below 1.5 degrees C.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Keuper, Frida
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Wild, Birgit
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Kummu, M.
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Beer, Christian
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Blume-Werry, Ges ...
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Fontaine, S.
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show more...
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Gavazov, Konstan ...
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Gentsch, N.
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Guggenberger, G.
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Hugelius, Gustaf
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Jalava, M.
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Koven, C.
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Krab, Eveline J.
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Kuhry, Peter
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Monteux, Sylvain
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Richter, A.
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Shahzad, T.
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Weedon, J. T.
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Dorrepaal, Ellen
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Climate Research
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- AGRICULTURAL SCIENCES
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AGRICULTURAL SCI ...
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and Agriculture Fore ...
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and Soil Science
- Articles in the publication
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Nature Geoscienc ...
- By the university
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University of Gothenburg
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Swedish University of Agricultural Sciences
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Stockholm University
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Umeå University