Articles | Volume 15, issue 1
Biogeosciences, 15, 13–29, 2018
https://doi.org/10.5194/bg-15-13-2018
Biogeosciences, 15, 13–29, 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 et al.

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Cited articles

Amini, S., Ghadiri, H., Chen, C., and Marschner, P.: Salt-affected soils, reclamation, carbon dynamics, and biochar: a review, J. Soils Sediments, 16, 939–953, https://doi.org/10.1007/s11368-015-1293-1, 2016. 
Barin, M., Aliasgharzad, N., Olsson, P. A., and Rasouli-Sadaghiani, M.: Salinity-induced differences in soil microbial communities around the hypersaline Lake Urmia, Soil Res., 53, 494–504, https://doi.org/10.1071/SR14090, 2015. 
Bates, D., Mächler, M., and Bolker, B.: Fitting linear mixed-effects models using lme4, J. Stat. Softw., 1–51, available at: http://arxiv.org/abs/1406.5823\%5Cnhttp://listengine.tuxfamily.org/lists.tuxfamily.org/eigen/2011/06/pdfKU_S0z6LjT.pdf (last access: 1 August 2016), 2012. 
Batjes, N. H.: Total carbon and nitrogen in the soils of the world, Eur. J. Soil Sci., 47, 151–163, https://doi.org/10.1111/j.1365-2389.1996.tb01386.x, 1996. 
Baumann, K. and Marschner, P.: Effects of salinity on microbial tolerance to drying and rewetting, Biogeochemistry, 112, 71–80, https://doi.org/10.1007/s10533-011-9672-1, 2011. 
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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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