Global stocks and capacity of mineral-associated soil organic carbon
International audience Soil is the largest terrestrial reservoir of organic carbon and is central for climate change mitigation and carbon-climate feedbacks. Chemical and physical associations of soil carbon with minerals play a critical role in carbon storage, but the amount and global capacity for...
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03824369 https://hal-insu.archives-ouvertes.fr/insu-03824369/document https://hal-insu.archives-ouvertes.fr/insu-03824369/file/s41467-022-31540-9.pdf https://doi.org/10.1038/s41467-022-31540-9 |
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ftunivnantes:oai:HAL:insu-03824369v1 2023-05-15T17:57:55+02:00 Global stocks and capacity of mineral-associated soil organic carbon Georgiou, Katerina Jackson, Robert B. Vindušková, Olga Abramoff, Rose Z. Ahlström, Anders Feng, Wenting Harden, Jennifer W. Pellegrini, Adam F. A. Polley, H. Wayne Soong, Jennifer L. Riley, William J. Torn, Margaret S. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) 2022 https://hal-insu.archives-ouvertes.fr/insu-03824369 https://hal-insu.archives-ouvertes.fr/insu-03824369/document https://hal-insu.archives-ouvertes.fr/insu-03824369/file/s41467-022-31540-9.pdf https://doi.org/10.1038/s41467-022-31540-9 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-022-31540-9 insu-03824369 https://hal-insu.archives-ouvertes.fr/insu-03824369 https://hal-insu.archives-ouvertes.fr/insu-03824369/document https://hal-insu.archives-ouvertes.fr/insu-03824369/file/s41467-022-31540-9.pdf BIBCODE: 2022NatCo.13.3797G doi:10.1038/s41467-022-31540-9 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal-insu.archives-ouvertes.fr/insu-03824369 Nature Communications, 2022, 13, ⟨10.1038/s41467-022-31540-9⟩ [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2022 ftunivnantes https://doi.org/10.1038/s41467-022-31540-9 2023-01-10T23:58:47Z International audience Soil is the largest terrestrial reservoir of organic carbon and is central for climate change mitigation and carbon-climate feedbacks. Chemical and physical associations of soil carbon with minerals play a critical role in carbon storage, but the amount and global capacity for storage in this form remain unquantified. Here, we produce spatially-resolved global estimates of mineral-associated organic carbon stocks and carbon-storage capacity by analyzing 1144 globally-distributed soil profiles. We show that current stocks total 899 Pg C to a depth of 1 m in non-permafrost mineral soils. Although this constitutes 66% and 70% of soil carbon in surface and deeper layers, respectively, it is only 42% and 21% of the mineralogical capacity. Regions under agricultural management and deeper soil layers show the largest undersaturation of mineral-associated carbon. Critically, the degree of undersaturation indicates sequestration efficiency over years to decades. We show that, across 103 carbon-accrual measurements spanning management interventions globally, soils furthest from their mineralogical capacity are more effective at accruing carbon; sequestration rates average 3-times higher in soils at one tenth of their capacity compared to soils at one half of their capacity. Our findings provide insights into the world's soils, their capacity to store carbon, and priority regions and actions for soil carbon management. Article in Journal/Newspaper permafrost Université de Nantes: HAL-UNIV-NANTES Nature Communications 13 1 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Georgiou, Katerina Jackson, Robert B. Vindušková, Olga Abramoff, Rose Z. Ahlström, Anders Feng, Wenting Harden, Jennifer W. Pellegrini, Adam F. A. Polley, H. Wayne Soong, Jennifer L. Riley, William J. Torn, Margaret S. Global stocks and capacity of mineral-associated soil organic carbon |
topic_facet |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Soil is the largest terrestrial reservoir of organic carbon and is central for climate change mitigation and carbon-climate feedbacks. Chemical and physical associations of soil carbon with minerals play a critical role in carbon storage, but the amount and global capacity for storage in this form remain unquantified. Here, we produce spatially-resolved global estimates of mineral-associated organic carbon stocks and carbon-storage capacity by analyzing 1144 globally-distributed soil profiles. We show that current stocks total 899 Pg C to a depth of 1 m in non-permafrost mineral soils. Although this constitutes 66% and 70% of soil carbon in surface and deeper layers, respectively, it is only 42% and 21% of the mineralogical capacity. Regions under agricultural management and deeper soil layers show the largest undersaturation of mineral-associated carbon. Critically, the degree of undersaturation indicates sequestration efficiency over years to decades. We show that, across 103 carbon-accrual measurements spanning management interventions globally, soils furthest from their mineralogical capacity are more effective at accruing carbon; sequestration rates average 3-times higher in soils at one tenth of their capacity compared to soils at one half of their capacity. Our findings provide insights into the world's soils, their capacity to store carbon, and priority regions and actions for soil carbon management. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Georgiou, Katerina Jackson, Robert B. Vindušková, Olga Abramoff, Rose Z. Ahlström, Anders Feng, Wenting Harden, Jennifer W. Pellegrini, Adam F. A. Polley, H. Wayne Soong, Jennifer L. Riley, William J. Torn, Margaret S. |
author_facet |
Georgiou, Katerina Jackson, Robert B. Vindušková, Olga Abramoff, Rose Z. Ahlström, Anders Feng, Wenting Harden, Jennifer W. Pellegrini, Adam F. A. Polley, H. Wayne Soong, Jennifer L. Riley, William J. Torn, Margaret S. |
author_sort |
Georgiou, Katerina |
title |
Global stocks and capacity of mineral-associated soil organic carbon |
title_short |
Global stocks and capacity of mineral-associated soil organic carbon |
title_full |
Global stocks and capacity of mineral-associated soil organic carbon |
title_fullStr |
Global stocks and capacity of mineral-associated soil organic carbon |
title_full_unstemmed |
Global stocks and capacity of mineral-associated soil organic carbon |
title_sort |
global stocks and capacity of mineral-associated soil organic carbon |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03824369 https://hal-insu.archives-ouvertes.fr/insu-03824369/document https://hal-insu.archives-ouvertes.fr/insu-03824369/file/s41467-022-31540-9.pdf https://doi.org/10.1038/s41467-022-31540-9 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal-insu.archives-ouvertes.fr/insu-03824369 Nature Communications, 2022, 13, ⟨10.1038/s41467-022-31540-9⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-022-31540-9 insu-03824369 https://hal-insu.archives-ouvertes.fr/insu-03824369 https://hal-insu.archives-ouvertes.fr/insu-03824369/document https://hal-insu.archives-ouvertes.fr/insu-03824369/file/s41467-022-31540-9.pdf BIBCODE: 2022NatCo.13.3797G doi:10.1038/s41467-022-31540-9 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-022-31540-9 |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
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1766166430548492288 |