Articles | Volume 7, issue 2
SOIL, 7, 453–475, 2021

Special issue: Tropical biogeochemistry of soils in the Congo Basin and the...

SOIL, 7, 453–475, 2021

Original research article 02 Aug 2021

Original research article | 02 Aug 2021

The role of geochemistry in organic carbon stabilization against microbial decomposition in tropical rainforest soils

Mario Reichenbach et al.

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Cited articles

Angst, G., Messinger, J., Greiner, M., Häusler, W., Hertel, D., Kirfel, K., Kögel-Knabner, I., Leuschner, C., Rethemeyer, J., and Mueller, C. W.: Soil organic carbon stocks in topsoil and subsoil controlled by parent material, carbon input in the rhizosphere, and microbial-derived compounds, Soil Biol. Biochem., 122, 19–30,, 2018. 
Allison, S. D. and Vitousek, P. M.: Responses of extracellular enzymes to simple and complex nutrient inputs, Soil Biol. Biochem., 37, 937–944,, 2005. 
Bascomb, C. L.: Distribution of pyrophosphate-extractable iron and organic carbon in soils of various groups, J. Soil Sci., 19, 251–268,, 1968. 
Berhe, A. A., Harte, J., Harden, J. W., and Torn, M. S.: The significance of the erosion-induced terrestrial carbon sink, BioScience, 57, 337–346,, 2007. 
Berhe, A. A., Harden, J. W., Torn, M. S., Kleber, M., Burton, S. D., and Harte, J.: Persistence of soil organic matter in eroding versus depositional landform positions, J. Geophys. Res., 117, 1–16,, 2012. 
Short summary
In deeply weathered tropical rainforest soils of Africa, we found that patterns of soil organic carbon stocks differ between soils developed from geochemically contrasting parent material due to differences in the abundance of organo-mineral complexes, the presence/absence of chemical stabilization mechanisms of carbon with minerals and the presence of fossil organic carbon from sedimentary rocks. Physical stabilization mechanisms by aggregation provide additional protection of soil carbon.