Input of easily available organic C and N stimulates microbial decomposition of soil organic matter in arctic permafrost soil

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F14%3A43887508" target="_blank" >RIV/60076658:12310/14:43887508 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0038071714001345" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0038071714001345</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.soilbio.2014.04.014" target="_blank" >10.1016/j.soilbio.2014.04.014</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Input of easily available organic C and N stimulates microbial decomposition of soil organic matter in arctic permafrost soil

Popis výsledku v původním jazyce

Rising temperatures in the Arctic can affect soil organic matter (SOM) decomposition directly and indirectly, by increasing plant primary production and thus the allocation of plant-derived organic compounds into the soil. Such compounds, for example root exudates or decaying fine roots, are easily available for microorganisms, and can alter the decomposition of older SUM ("priming effect"). We here report on a SUM priming experiment in the active layer of a permafrost soil from the central Siberian Arctic, comparing responses of organic topsoil, mineral subsoil, and cryoturbated subsoil material (i.e., poorly decomposed topsoil material subducted into the subsoil by freeze-thaw processes) to additions of C-13-labeled glucose, cellulose, a mixture of amino acids, and protein (added at levels corresponding to approximately 1% of soil organic carbon).Our findings provide a first mechanistic understanding of priming in permafrost soils and suggest that an increase in the availability of o

Název v anglickém jazyce

Input of easily available organic C and N stimulates microbial decomposition of soil organic matter in arctic permafrost soil

Popis výsledku anglicky

Rising temperatures in the Arctic can affect soil organic matter (SOM) decomposition directly and indirectly, by increasing plant primary production and thus the allocation of plant-derived organic compounds into the soil. Such compounds, for example root exudates or decaying fine roots, are easily available for microorganisms, and can alter the decomposition of older SUM ("priming effect"). We here report on a SUM priming experiment in the active layer of a permafrost soil from the central Siberian Arctic, comparing responses of organic topsoil, mineral subsoil, and cryoturbated subsoil material (i.e., poorly decomposed topsoil material subducted into the subsoil by freeze-thaw processes) to additions of C-13-labeled glucose, cellulose, a mixture of amino acids, and protein (added at levels corresponding to approximately 1% of soil organic carbon).Our findings provide a first mechanistic understanding of priming in permafrost soils and suggest that an increase in the availability of o

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DF - Pedologie

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Soil Biology & Biochemistry

ISSN

0038-0717

e-ISSN

—

Svazek periodika

75

Číslo periodika v rámci svazku

AUG 2014

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

143-151

Kód UT WoS článku

000338619600015

EID výsledku v databázi Scopus

—