Articles | Volume 18, issue 23
https://doi.org/10.5194/gmd-18-9349-2025
https://doi.org/10.5194/gmd-18-9349-2025
Development and technical paper
 | 
02 Dec 2025
Development and technical paper |  | 02 Dec 2025

A process-based modeling of soil organic matter physical properties for land surface models – Part 1: Soil mixture theory

Bertrand Decharme

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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, Journal of Soil Science, 24, 10–17, https://doi.org/10.1111/j.1365-2389.1973.tb00737.x, 1973. a, b, c
Arkhangel'skaya, T. A.: Parameterization and mathematical modeling of the dependence of soil thermal diffusivity on the water content, Eurasian Soil Science, 42, https://doi.org/10.1134/S1064229309020070, 2009. a, b, c, d, e, f
Arkhangelskaya, T. A. and Gvozdkova, A. A.: Thermal diffusivity of peat-sand mixtures, in: IOP Conference Series: Earth and Environmental Science, vol. 368, https://doi.org/10.1088/1755-1315/368/1/012005, 2019. a
Arkhangelskaya, T. A. and Telyatnikova, E. V.: Thermal Diffusivity of Peat-Sand Mixtures with Different Peat and Sand Contents, Eurasian Soil Science, 56, https://doi.org/10.1134/S1064229322602463, 2023. a, b, c, d, e, f, g, h, i, j
Balland, V. and Arp, P. A.: Modeling soil thermal conductivities over a wide range of conditions, Journal of Environmental Engineering and Science, 4, https://doi.org/10.1139/s05-007, 2005. a, b
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Short summary
This study resolves a key inconsistency in how Earth system models represent the physical properties of soil organic matter in land surface models. It introduces a new method to compute its volumetric fraction and physical effects using standard input data and soil mixture theory. Validated with experimental mixtures and field observations, the proposed framework improves the physical realism of soil property estimates.
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