Articles | Volume 19, issue 6
https://doi.org/10.5194/bg-19-1675-2022
https://doi.org/10.5194/bg-19-1675-2022
Research article
 | 
24 Mar 2022
Research article |  | 24 Mar 2022

Soil geochemistry as a driver of soil organic matter composition: insights from a soil chronosequence

Moritz Mainka, Laura Summerauer, Daniel Wasner, Gina Garland, Marco Griepentrog, Asmeret Asefaw Berhe, and Sebastian Doetterl

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Revised manuscript accepted for BG
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Cited articles

Angst, G., Nierop, K. G. J., Angst, Š., and Frouz, J.: Abundance of lipids in differently sized aggregates depends on their chemical composition, Biogeochemistry, 140, 111–125, https://doi.org/10.1007/s10533-018-0481-7, 2018. 
Araya, S. N., Meding, M., and Berhe, A. A.: Thermal alteration of soil physico-chemical properties: a systematic study to infer response of Sierra Nevada climosequence soils to forest fires, SOIL, 2, 351–366, https://doi.org/10.5194/soil-2-351-2016, 2016. 
Austin, A. T. and Vitousek, P. M.: Nutrient dynamics on a precipitation gradient in Hawai'i, Oecologia, 113, 519–529, https://doi.org/10.1007/s004420050405, 1998. 
Bailey, V. L., Hicks Pries, C., and Lajtha, K.: What do we know about soil carbon destabilization?, Environ. Res. Lett., 14, 083004, https://doi.org/10.1088/1748-9326/ab2c11, 2019. 
Baldock, J. A., Creamer, C., Szarvas, S., McGowan, J., Carter, T., and Farrell, M.: Linking decomposition rates of soil organic amendments to their chemical composition, Soil Res., 59, 630–643, https://doi.org/10.1071/SR20269, 2021. 
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Short summary
The largest share of terrestrial carbon is stored in soils, making them highly relevant as regards global change. Yet, the mechanisms governing soil carbon stabilization are not well understood. The present study contributes to a better understanding of these processes. We show that qualitative changes in soil organic matter (SOM) co-vary with alterations of the soil matrix following soil weathering. Hence, the type of SOM that is stabilized in soils might change as soils develop.
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