Biogeosciences
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Articles | Volume 18, issue 12
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.
https://doi.org/10.5194/bg-18-3937-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 12
Research article
 | 
01 Jul 2021
Research article |  | 01 Jul 2021

Development of global temperature and pH calibrations based on bacterial 3-hydroxy fatty acids in soils

Pierre Véquaud, Sylvie Derenne, Alexandre Thibault, Christelle Anquetil, Giuliano Bonanomi, Sylvie Collin, Sergio Contreras, Andrew T. Nottingham, Pierre Sabatier, Norma Salinas, Wesley P. Scott, Josef P. Werne, and Arnaud Huguet

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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.
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