Articles | Volume 17, issue 20
https://doi.org/10.5194/bg-17-5025-2020
https://doi.org/10.5194/bg-17-5025-2020
Research article
 | 
19 Oct 2020
Research article |  | 19 Oct 2020

Modelling dynamic interactions between soil structure and the storage and turnover of soil organic matter

Katharina Hildegard Elisabeth Meurer, Claire Chenu, Elsa Coucheney, Anke Marianne Herrmann, Thomas Keller, Thomas Kätterer, David Nimblad Svensson, and Nicholas Jarvis

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Cited articles

Adams, W. A.: The effect of organic matter on the bulk and true densities of some uncultivated podzolic soils, J. Soil Sci., 24, 10–17, 1973. 
Ahrens, B., Braakhekke, M., Guggenberger, G., Schrumpf, M., and Reichstein, M.: Contribution of sorption, DOC transport and microbial interactions to the 14C age of a soil organic carbon profile: Insights from a calibrated process model, Soil Biol. Biochem., 88, 390–402, 2015. 
Andrén, O. and Kätterer, T.: ICBM: the introductory carbon balance model for exploration of soil carbon balances, Ecol. Appl., 7, 1226–1236, 1997. 
Angst, Š., Mueller, C., Cajthaml, T., Angst, G., Lhotáková, Z., Bartuška, M., Špaldoňová, A., and Frouz, J.: Stabilization of soil organic matter by earthworms is connected with physical protection rather than with chemical changes of organic matter, Geoderma, 289, 29–35, 2017. 
Arya, L. and Heitman, J.: A non-empirical method for computing pore radii and soil water characteristics from particle-size distribution, Soil Sci. Soc. Am. J., 79, 1537–1544, 2015. 
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Short summary
We present a simple model that describes, for the first time, the dynamic two-way interactions between soil organic matter and soil physical properties (porosity, pore size distribution, bulk density and layer thickness). The model was able to accurately reproduce the changes in soil organic carbon, soil bulk density and surface elevation observed during 63 years in a field trial, as well as soil water retention curves measured at the end of the experimental period.
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