Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 21
Articles | Volume 23, issue 21
https://doi.org/10.5194/bg-23-8319-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-8319-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 21
Research article
 | 
13 Nov 2026
Research article |  | 13 Nov 2026

Fresh tephra deposits from the Tajogaite Volcano boost thermophile proliferation and soil organic matter recovery

Sara Gutiérrez-Patricio, Alba Gómez-Arias, Pedro Nolasco-Jiménez, Jorge Mataix-Solera, Javier Martínez-Martínez, Bruno Martínez-Haya, Juana Vegas, Nicasio T. Jiménez-Morillo, and Ana Z. Miller

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Latest update: 14 Nov 2026
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Short summary

The 2021 Tajogaite eruption on La Palma covered soils with volcanic ash, changing their organic matter and microbial communities. By studying soil chemistry and microorganisms at different depths, we found more easily degradable organic compounds just beneath the ash, alongside heat-loving bacteria. Our findings show how volcanic deposits and geothermal heat may influence soil carbon and nitrogen cycling, with implications for soil recovery in volcanic landscapes.

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