Articles | Volume 18, issue 3
https://doi.org/10.5194/bg-18-1105-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-1105-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Feb 2021
Research article |
| 15 Feb 2021
| 15 Feb 2021
Key drivers of pyrogenic carbon redistribution during a simulated rainfall event
Severin-Luca Bellè
Department of Geography, University of Zurich, Winterthurerstrasse
190, 8057 Zurich, Switzerland
Asmeret Asefaw Berhe
School of Natural Sciences, University of California, Merced, CA
95340, USA
Frank Hagedorn
Forest soils and Biogeochemistry, Swiss Federal Research Institute
WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland
Cristina Santin
Department of Biosciences, College of Science, Swansea University,
Swansea, UK
Research of Biodiversity (CSIC, UO, PA), University of Oviedo, Mieres,
Spain
Marcus Schiedung
Department of Geography, University of Zurich, Winterthurerstrasse
190, 8057 Zurich, Switzerland
Ilja van Meerveld
Department of Geography, University of Zurich, Winterthurerstrasse
190, 8057 Zurich, Switzerland
Department of Geography, University of Zurich, Winterthurerstrasse
190, 8057 Zurich, Switzerland
Laboratoire de Géologie, Département de Géosciences, CNRS – École normale supérieure, PSL University, Institut Pierre Simon Laplace, Rue Lhomond 24, 75005 Paris, France
CEREEP-Ecotron Ile De France, ENS, CNRS, PSL University, Chemin de
busseau 11, 77140 St-Pierre-lès-Nemours, France
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Hannah Gies, Frank Hagedorn, Maarten Lupker, Daniel Montluçon, Negar Haghipour, Tessa Sophia van der Voort, and Timothy Ian Eglinton
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Short summary
Short summary
The mobility of pyrogenic organic matter (PyOM) in soils is largely unknow, while it is a major and persistent component of the soil organic matter. With a soil column experiment, we identified that only a small proportion of PyOM can migrate through the soil, but its export is continuous. Aging and associated oxidation increase its mobility but also its retention in soils. Further, PyOM can alter the vertical mobility of native soil organic carbon during its downward migration.
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Short summary
Controls of pyrogenic carbon (PyC) redistribution under rainfall are largely unknown. However, PyC mobility can be substantial after initial rain in post-fire landscapes. We conducted a controlled simulation experiment on plots where PyC was applied on the soil surface. We identified redistribution of PyC by runoff and splash and vertical movement in the soil depending on soil texture and PyC characteristics (material and size). PyC also induced changes in exports of native soil organic carbon.
Controls of pyrogenic carbon (PyC) redistribution under rainfall are largely unknown. However,...
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