Articles | Volume 15, issue 1
https://doi.org/10.5194/bg-15-13-2018
https://doi.org/10.5194/bg-15-13-2018
Research article
 | 
03 Jan 2018
Research article |  | 03 Jan 2018

Organic matter dynamics along a salinity gradient in Siberian steppe soils

Norbert Bischoff, Robert Mikutta, Olga Shibistova, Reiner Dohrmann, Daniel Herdtle, Lukas Gerhard, Franziska Fritzsche, Alexander Puzanov, Marina Silanteva, Anna Grebennikova, and Georg Guggenberger

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Short summary
This study suggests that soil moisture significantly affects soil organic matter dynamics along a salinity gradient in semiarid steppe soils. The covarying moisture gradient along the salinity gradient serves as an explanatory factor for (i) the increasing soil organic carbon (OC) stocks with increasing salinity, (ii) the constant proportion and stability of particulate OC along the transect, and (iii) a similar fungi : bacteria ratio in the topsoils along the studied gradient.
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