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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F16%3A43891910" target="_blank" >RIV/60076658:12310/16:43891910 - isvavai.cz</a>

Result on the web

<a href="http://www.nature.com/articles/srep25607" target="_blank" >http://www.nature.com/articles/srep25607</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/srep25607" target="_blank" >10.1038/srep25607</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

<a href="/en/project/7E10073" target="_blank" >7E10073: Long-term Carbon Storage in Cryoturbeated Arctic Soils</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

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Volume of the periodical

6

Issue of the periodical within the volume

MAY 9 2016

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

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UT code for WoS article

000375440400001

EID of the result in the Scopus database

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