Storage and transformation of organic matter fractions in cryoturbated permafrost soils across the Siberian Arctic
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F15%3A43888739" target="_blank" >RIV/60076658:12310/15:43888739 - isvavai.cz</a>
Výsledek na webu
<a href="http://www.biogeosciences.net/12/4525/2015/bg-12-4525-2015.html" target="_blank" >http://www.biogeosciences.net/12/4525/2015/bg-12-4525-2015.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5194/bg-12-4525-2015" target="_blank" >10.5194/bg-12-4525-2015</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Storage and transformation of organic matter fractions in cryoturbated permafrost soils across the Siberian Arctic
Popis výsledku v původním jazyce
In permafrost soils, the temperature regime and the resulting cryogenic processes are important determinants of the storage of organic carbon (OC) and its small-scale spatial variability. For cryoturbated soils, there is a lack of research assessing pedon-scale heterogeneity in OC stocks and the transformation of functionally different organic matter (OM) fractions, such as particulate and mineral-associated OM. Therefore, pedons of 28 Turbels were sampled in 5m wide soil trenches across the Siberian Arctic to calculate OC and total nitrogen (TN) stocks based on digital profile mapping. Density fractionation of soil samples was performed to distinguish between particulate OM (light fraction, LF, < 1.6 g cm(-3)), mineral associated OM (heavy fraction, HF, > 1.6 g cm(-3)), and a mobilizable dissolved pool (mobilizable fraction, MoF). Across all investigated soil profiles, the total OC storage was 20.2 +/- 8.0 kgm(-2) (mean +/- SD) to 100 cm soil depth. Fifty-four percent of this OC was l
Název v anglickém jazyce
Storage and transformation of organic matter fractions in cryoturbated permafrost soils across the Siberian Arctic
Popis výsledku anglicky
In permafrost soils, the temperature regime and the resulting cryogenic processes are important determinants of the storage of organic carbon (OC) and its small-scale spatial variability. For cryoturbated soils, there is a lack of research assessing pedon-scale heterogeneity in OC stocks and the transformation of functionally different organic matter (OM) fractions, such as particulate and mineral-associated OM. Therefore, pedons of 28 Turbels were sampled in 5m wide soil trenches across the Siberian Arctic to calculate OC and total nitrogen (TN) stocks based on digital profile mapping. Density fractionation of soil samples was performed to distinguish between particulate OM (light fraction, LF, < 1.6 g cm(-3)), mineral associated OM (heavy fraction, HF, > 1.6 g cm(-3)), and a mobilizable dissolved pool (mobilizable fraction, MoF). Across all investigated soil profiles, the total OC storage was 20.2 +/- 8.0 kgm(-2) (mean +/- SD) to 100 cm soil depth. Fifty-four percent of this OC was l
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
DF - Pedologie
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Biogeosciences
ISSN
1726-4170
e-ISSN
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Svazek periodika
12
Číslo periodika v rámci svazku
14
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
18
Strana od-do
4525-4542
Kód UT WoS článku
000358800900021
EID výsledku v databázi Scopus
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