Soil carbon storage controlled by interactions between geochemistry and climate
Soils are an important site of carbon storage(1). Climate is generally regarded as one of the primary controls over soil organic carbon(1,2), but there is still uncertainty about the direction and magnitude of carbon responses to climate change. Here we show that geochemistry, too, is an important c...
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ftunivgent:oai:archive.ugent.be:8029731 2023-06-11T04:06:21+02:00 Soil carbon storage controlled by interactions between geochemistry and climate Doetterl, Sebastian Stevens, Antoine Six, Johan Merckx, Roel Van Oost, Kristof Casanova Pinto, Manuel Casanova-Katny, Angélica Muñoz, Cristina Boudin, Mathieu Zagal Venegas, Erick Boeckx, Pascal 2015 application/pdf https://biblio.ugent.be/publication/8029731 http://hdl.handle.net/1854/LU-8029731 https://doi.org/10.1038/NGEO2516 https://biblio.ugent.be/publication/8029731/file/8029744 eng eng https://biblio.ugent.be/publication/8029731 http://hdl.handle.net/1854/LU-8029731 http://dx.doi.org/10.1038/NGEO2516 https://biblio.ugent.be/publication/8029731/file/8029744 No license (in copyright) info:eu-repo/semantics/restrictedAccess NATURE GEOSCIENCE ISSN: 1752-0894 Earth and Environmental Sciences GRADIENT SURFACES ORGANIC-MATTER OXIDATION SATURATION TEMPERATURE SENSITIVITY FEEDBACKS TURNOVER STABILIZATION MECHANISMS journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftunivgent https://doi.org/10.1038/NGEO2516 2023-05-10T22:29:55Z Soils are an important site of carbon storage(1). Climate is generally regarded as one of the primary controls over soil organic carbon(1,2), but there is still uncertainty about the direction and magnitude of carbon responses to climate change. Here we show that geochemistry, too, is an important controlling factor for soil carbon storage. We measured a range of soil and climate variables at 24 sites along a 4,000-km-long north-south transect of natural grassland and shrubland in Chile and the Antarctic Peninsula, which spans a broad range of climatic and geochemical conditions. We find that soils with high carbon content are characterized by substantial adsorption of carbon compounds onto mineral soil and low rates of respiration per unit of soil carbon; and vice versa for soils with low carbon content. Precipitation and temperature were only secondary predictors for carbon storage, respiration, residence time and stabilization mechanisms. Correlations between climatic variables and carbon variables decreased significantly after removing relationships with geochemical predictors. We conclude that the interactions of climatic and geochemical factors control soil organic carbon storage and turnover, and must be considered for robust prediction of current and future soil carbon storage. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ghent University Academic Bibliography Antarctic The Antarctic Antarctic Peninsula Nature Geoscience 8 10 780 783 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences GRADIENT SURFACES ORGANIC-MATTER OXIDATION SATURATION TEMPERATURE SENSITIVITY FEEDBACKS TURNOVER STABILIZATION MECHANISMS |
spellingShingle |
Earth and Environmental Sciences GRADIENT SURFACES ORGANIC-MATTER OXIDATION SATURATION TEMPERATURE SENSITIVITY FEEDBACKS TURNOVER STABILIZATION MECHANISMS Doetterl, Sebastian Stevens, Antoine Six, Johan Merckx, Roel Van Oost, Kristof Casanova Pinto, Manuel Casanova-Katny, Angélica Muñoz, Cristina Boudin, Mathieu Zagal Venegas, Erick Boeckx, Pascal Soil carbon storage controlled by interactions between geochemistry and climate |
topic_facet |
Earth and Environmental Sciences GRADIENT SURFACES ORGANIC-MATTER OXIDATION SATURATION TEMPERATURE SENSITIVITY FEEDBACKS TURNOVER STABILIZATION MECHANISMS |
description |
Soils are an important site of carbon storage(1). Climate is generally regarded as one of the primary controls over soil organic carbon(1,2), but there is still uncertainty about the direction and magnitude of carbon responses to climate change. Here we show that geochemistry, too, is an important controlling factor for soil carbon storage. We measured a range of soil and climate variables at 24 sites along a 4,000-km-long north-south transect of natural grassland and shrubland in Chile and the Antarctic Peninsula, which spans a broad range of climatic and geochemical conditions. We find that soils with high carbon content are characterized by substantial adsorption of carbon compounds onto mineral soil and low rates of respiration per unit of soil carbon; and vice versa for soils with low carbon content. Precipitation and temperature were only secondary predictors for carbon storage, respiration, residence time and stabilization mechanisms. Correlations between climatic variables and carbon variables decreased significantly after removing relationships with geochemical predictors. We conclude that the interactions of climatic and geochemical factors control soil organic carbon storage and turnover, and must be considered for robust prediction of current and future soil carbon storage. |
format |
Article in Journal/Newspaper |
author |
Doetterl, Sebastian Stevens, Antoine Six, Johan Merckx, Roel Van Oost, Kristof Casanova Pinto, Manuel Casanova-Katny, Angélica Muñoz, Cristina Boudin, Mathieu Zagal Venegas, Erick Boeckx, Pascal |
author_facet |
Doetterl, Sebastian Stevens, Antoine Six, Johan Merckx, Roel Van Oost, Kristof Casanova Pinto, Manuel Casanova-Katny, Angélica Muñoz, Cristina Boudin, Mathieu Zagal Venegas, Erick Boeckx, Pascal |
author_sort |
Doetterl, Sebastian |
title |
Soil carbon storage controlled by interactions between geochemistry and climate |
title_short |
Soil carbon storage controlled by interactions between geochemistry and climate |
title_full |
Soil carbon storage controlled by interactions between geochemistry and climate |
title_fullStr |
Soil carbon storage controlled by interactions between geochemistry and climate |
title_full_unstemmed |
Soil carbon storage controlled by interactions between geochemistry and climate |
title_sort |
soil carbon storage controlled by interactions between geochemistry and climate |
publishDate |
2015 |
url |
https://biblio.ugent.be/publication/8029731 http://hdl.handle.net/1854/LU-8029731 https://doi.org/10.1038/NGEO2516 https://biblio.ugent.be/publication/8029731/file/8029744 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
NATURE GEOSCIENCE ISSN: 1752-0894 |
op_relation |
https://biblio.ugent.be/publication/8029731 http://hdl.handle.net/1854/LU-8029731 http://dx.doi.org/10.1038/NGEO2516 https://biblio.ugent.be/publication/8029731/file/8029744 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1038/NGEO2516 |
container_title |
Nature Geoscience |
container_volume |
8 |
container_issue |
10 |
container_start_page |
780 |
op_container_end_page |
783 |
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1768378249034858496 |