Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils

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dc.identifier.uri Wild, Birgit Gentsch, Norman Capek, Petr Diakova, Katerina Alves, Ricardo J. Eloy Barta, Jiri Gittel, Antje Hugelius, Gustaf Knoltsch, Anna Kuhry, Peter Lashchinskiy, Nikolay Mikutta, Robert Palmtag, Juri Schleper, Christa Schnecker, Jörg Shibistova, Olga Takriti, Mounir Torsvik, Vigdis L. Urich, Tim Watzka, Margarete Santruckova, Hana Guggenberger, Georg Richter, Andreas 2016-08-31T09:19:32Z 2016-08-31T09:19:32Z 2016
dc.identifier.citation Wild, Birgit; Gentsch, Norman; Capek, Petr; Diakova, Katerina; Alves, Ricardo J. Eloy et al.: Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils. In: Scientific Reports 6 (2016), 25607. DOI:
dc.description.abstract Arctic ecosystems are warming rapidly, which is expected to promote soil organic matter (SOM) decomposition. In addition to the direct warming effect, decomposition can also be indirectly stimulated via increased plant productivity and plant-soil C allocation, and this so called "priming effect" might significantly alter the ecosystem C balance. In this study, we provide first mechanistic insights into the susceptibility of SOM decomposition in arctic permafrost soils to priming. By comparing 119 soils from four locations across the Siberian Arctic that cover all horizons of active layer and upper permafrost, we found that an increased availability of plant-derived organic C particularly stimulated decomposition in subsoil horizons where most of the arctic soil carbon is located. Considering the 1,035 Pg of arctic soil carbon, such an additional stimulation of decomposition beyond the direct temperature effect can accelerate net ecosystem C losses, and amplify the positive feedback to global warming. eng
dc.description.sponsorship Austrian Science Fund (FWF)/I370-B17
dc.description.sponsorship BMBF/03F0616A
dc.description.sponsorship Czech Ministry of Education, Youth and Sports/MSM 7E10073
dc.description.sponsorship Russian Ministry of Education and Science /14.B25.31.0031
dc.description.sponsorship Swedish Research Council/824-2009-77357
dc.description.sponsorship Norwegian Research Fund (NFR)/NFR-200411
dc.language.iso eng
dc.publisher London : Macmillan Publishers Limited
dc.relation.ispartofseries Scientific Reports 6 (2016)
dc.rights CC BY 4.0 Unported
dc.subject Soil Organic Matter eng
dc.subject Soil Organic Carbon Mineralization eng
dc.subject SOC eng
dc.subject SOM eng
dc.subject.ddc 500 | Naturwissenschaften ger
dc.title Plant-derived compounds stimulate the decomposition of organic matter in arctic permafrost soils eng
dc.type Article
dc.type Text
dc.relation.essn 2045-2322
dc.relation.issn 2045-2322
dc.bibliographicCitation.volume 6
dc.bibliographicCitation.firstPage 25607
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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