Articles | Volume 18, issue 5
Biogeosciences, 18, 1703–1718, 2021
https://doi.org/10.5194/bg-18-1703-2021
Biogeosciences, 18, 1703–1718, 2021
https://doi.org/10.5194/bg-18-1703-2021
Research article
10 Mar 2021
Research article | 10 Mar 2021

Long-term bare-fallow soil fractions reveal thermo-chemical properties controlling soil organic carbon dynamics

Mathieu Chassé et al.

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Cited articles

Abiven, S., Hengartner, P., Schneider, M. P. W., Singh, N., and Schmidt, M. W. I.: Pyrogenic Carbon Soluble Fraction is Larger and More Aromatic in Aged Charcoal than in Fresh Charcoal, Soil Biol. Biochem., 43, 1615–1617, https://doi.org/10.1016/j.soilbio.2011.03.027, 2011. a
Abney, R. B. and Berhe, A. A.: Pyrogenic Carbon Erosion: Implications for Stock and Persistence of Pyrogenic Carbon in Soil, Front. Earth Sci., 6, 26, https://doi.org/10.3389/feart.2018.00026, 2018. a
Amelung, W., Brodowski, S., Sandhage-Hofmann, A., and Bol, R.: Combining Biomarker with Stable Isotope Analyses for Assessing the Transformation and Turnover of Soil Organic Matter, in: Advances in Agronomy, 100, 155–250, Elsevier Academic Press, Waltham, Mass., USA, https://doi.org/10.1016/S0065-2113(08)00606-8, 2008. a
Angst, G., Heinrich, L., Kögel-Knabner, I., and Mueller, C. W.: The Fate of Cutin and Suberin of Decaying Leaves, Needles and Roots – Inferences from the Initial Decomposition of Bound Fatty Acids, Org. Geochem., 95, 81–92, https://doi.org/10.1016/j.orggeochem.2016.02.006, 2016. a
Balesdent, J., Mariotti, A., and Guillet, B.: Natural 13C Abundance as a Tracer for Studies of Soil Organic Matter Dynamics, Soil Biol. Biochem., 19, 25–30, https://doi.org/10.1016/0038-0717(87)90120-9, 1987. a, b
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Evolution of organic carbon content in soils could be a major driver of atmospheric greenhouse gas concentrations over the next century. Understanding factors controlling carbon persistence in soil is a challenge. Our study of unique long-term bare-fallow samples, depleted in labile organic carbon, helps improve the separation, evaluation and characterization of carbon pools with distinct residence time in soils and gives insight into the mechanisms explaining soil organic carbon persistence.
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