Articles | Volume 18, issue 12
https://doi.org/10.5194/bg-18-3937-2021
© 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-18-3937-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
01 Jul 2021
Research article |
| 01 Jul 2021
| 01 Jul 2021
Development of global temperature and pH calibrations based on bacterial 3-hydroxy fatty acids in soils
Pierre Véquaud
Sorbonne Université, CNRS, EPHE, PSL, UMR METIS, Paris, 75005,
France
Sylvie Derenne
Sorbonne Université, CNRS, EPHE, PSL, UMR METIS, Paris, 75005,
France
Alexandre Thibault
Antea Group, Innovation Hub, 803 boulevard Duhamel du Monceau, Olivet,
45160, France
Christelle Anquetil
Sorbonne Université, CNRS, EPHE, PSL, UMR METIS, Paris, 75005,
France
Giuliano Bonanomi
Dipartimento di Agraria, Università di Napoli Federico II, via
Università 100, Portici, NA, 80055, Italy
Sylvie Collin
Sorbonne Université, CNRS, EPHE, PSL, UMR METIS, Paris, 75005,
France
Sergio Contreras
Laboratorio de Ciencias Ambientales (LACA), Departamento de
Química Ambiental, Facultad de Ciencias & Centro de
Investigación en Biodiversidad y Ambientes Sustentables (CIBAS),
Universidad Católica de la Santísima Concepción, Casilla 297,
Concepción, Chile
Andrew T. Nottingham
School of Geosciences, University of Edinburgh, Crew Building, Kings
Buildings, Edinburgh EH9 3FF, UK
School of Geography, University of Leeds, Leeds, UK
Pierre Sabatier
Univ. Savoie Mont Blanc, CNRS, EDYTEM, Le Bourget du Lac, 73776,
France
Norma Salinas
Instituto de Ciencias de la Naturaleza, Territorio y Energías
Renovables, Pontificia Universidad Catolica del Peru, Av. Universitaria
1801, San Miguel, Lima 32, Peru
Wesley P. Scott
Department of Geology and Environmental Science, University of
Pittsburgh, Pittsburgh, PA 15260, USA
Josef P. Werne
Department of Geology and Environmental Science, University of
Pittsburgh, Pittsburgh, PA 15260, USA
Arnaud Huguet
CORRESPONDING AUTHOR
Sorbonne Université, CNRS, EPHE, PSL, UMR METIS, Paris, 75005,
France
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Sediment archives provide a powerful and unique tool for reconstructing the trajectory and the resilience of terrestrial and aquatic ecosystems facing major environmental changes. Establishing an age depth–model is the first prerequisite of any paleo-investigation. This study synthesizes the distribution of two radionuclides classically used to this aim, providing a worldwide reference to help the scientific community reach a consensus for dating recent sedimentary archives.
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Short summary
A better understanding of past climate variations is essential to apprehend future climatic changes. The aim of this study is to investigate the applicability of specific organic compounds of bacterial origin, 3-hydroxy fatty acids (3-OH FAs), as temperature and pH proxies at the global level using an extended soil dataset. We show the major potential of 3-OH FAs as such proxies in terrestrial environments through the different models presented and their application for palaeoreconstruction.
A better understanding of past climate variations is essential to apprehend future climatic...
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