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Anthropogenic N input increases global warming potential by awakening the “sleeping” ancient C in deep critical zones
Even a small net increase in soil organic carbon (SOC) mineralization will cause a substantial increase in the atmospheric CO(2) concentration. It is widely recognized that the SOC mineralization within deep critical zones (2 to 12 m depth) is slower and much less influenced by anthropogenic disturb...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9908017/ https://www.ncbi.nlm.nih.gov/pubmed/36753554 http://dx.doi.org/10.1126/sciadv.add0041 |
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author | Qin, Shuping Yuan, Haijing Hu, Chunsheng Li, Xiaoxin Wang, Yuying Zhang, Yuming Dong, Wenxu Clough, Timothy Luo, Jiafa Zhou, Shungui Wrage-Mönnig, Nicole Ma, Lin Oenema, Oene |
author_facet | Qin, Shuping Yuan, Haijing Hu, Chunsheng Li, Xiaoxin Wang, Yuying Zhang, Yuming Dong, Wenxu Clough, Timothy Luo, Jiafa Zhou, Shungui Wrage-Mönnig, Nicole Ma, Lin Oenema, Oene |
author_sort | Qin, Shuping |
collection | PubMed |
description | Even a small net increase in soil organic carbon (SOC) mineralization will cause a substantial increase in the atmospheric CO(2) concentration. It is widely recognized that the SOC mineralization within deep critical zones (2 to 12 m depth) is slower and much less influenced by anthropogenic disturbance when compared to that of surface soil. Here, we showed that 20 years of nitrogen (N) fertilization enriched a deep critical zone with nitrate, almost doubling the SOC mineralization rate. This result was supported by corresponding increases in the expressions of functional genes typical of recalcitrant SOC degradation and enzyme activities. The CO(2) released and the SOC had a similar (14)C age (6000 to 10,000 years before the present). Our results indicate that N fertilization of crops may enhance CO(2) emissions from deep critical zones to the atmosphere through a previously disregarded mechanism. This provides another reason for markedly improving N management in fertilized agricultural soils. |
format | Online Article Text |
id | pubmed-9908017 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-99080172023-02-09 Anthropogenic N input increases global warming potential by awakening the “sleeping” ancient C in deep critical zones Qin, Shuping Yuan, Haijing Hu, Chunsheng Li, Xiaoxin Wang, Yuying Zhang, Yuming Dong, Wenxu Clough, Timothy Luo, Jiafa Zhou, Shungui Wrage-Mönnig, Nicole Ma, Lin Oenema, Oene Sci Adv Earth, Environmental, Ecological, and Space Sciences Even a small net increase in soil organic carbon (SOC) mineralization will cause a substantial increase in the atmospheric CO(2) concentration. It is widely recognized that the SOC mineralization within deep critical zones (2 to 12 m depth) is slower and much less influenced by anthropogenic disturbance when compared to that of surface soil. Here, we showed that 20 years of nitrogen (N) fertilization enriched a deep critical zone with nitrate, almost doubling the SOC mineralization rate. This result was supported by corresponding increases in the expressions of functional genes typical of recalcitrant SOC degradation and enzyme activities. The CO(2) released and the SOC had a similar (14)C age (6000 to 10,000 years before the present). Our results indicate that N fertilization of crops may enhance CO(2) emissions from deep critical zones to the atmosphere through a previously disregarded mechanism. This provides another reason for markedly improving N management in fertilized agricultural soils. American Association for the Advancement of Science 2023-02-08 /pmc/articles/PMC9908017/ /pubmed/36753554 http://dx.doi.org/10.1126/sciadv.add0041 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Earth, Environmental, Ecological, and Space Sciences Qin, Shuping Yuan, Haijing Hu, Chunsheng Li, Xiaoxin Wang, Yuying Zhang, Yuming Dong, Wenxu Clough, Timothy Luo, Jiafa Zhou, Shungui Wrage-Mönnig, Nicole Ma, Lin Oenema, Oene Anthropogenic N input increases global warming potential by awakening the “sleeping” ancient C in deep critical zones |
title | Anthropogenic N input increases global warming potential by awakening the “sleeping” ancient C in deep critical zones |
title_full | Anthropogenic N input increases global warming potential by awakening the “sleeping” ancient C in deep critical zones |
title_fullStr | Anthropogenic N input increases global warming potential by awakening the “sleeping” ancient C in deep critical zones |
title_full_unstemmed | Anthropogenic N input increases global warming potential by awakening the “sleeping” ancient C in deep critical zones |
title_short | Anthropogenic N input increases global warming potential by awakening the “sleeping” ancient C in deep critical zones |
title_sort | anthropogenic n input increases global warming potential by awakening the “sleeping” ancient c in deep critical zones |
topic | Earth, Environmental, Ecological, and Space Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9908017/ https://www.ncbi.nlm.nih.gov/pubmed/36753554 http://dx.doi.org/10.1126/sciadv.add0041 |
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