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Ubiquitous anaerobic ammonium oxidation in inland waters of China: an overlooked nitrous oxide mitigation process
Denitrification has long been regarded as the only pathway for terrestrial nitrogen (N) loss to the atmosphere. Here we demonstrate that large-scale anaerobic ammonium oxidation (anammox), an overlooked N loss process alternative to denitrification which bypasses nitrous oxide (N(2)O), is ubiquitous...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4661425/ https://www.ncbi.nlm.nih.gov/pubmed/26610807 http://dx.doi.org/10.1038/srep17306 |
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author | Zhu, Guibing Wang, Shanyun Zhou, Leiliu Wang, Yu Zhao, Siyan Xia, Chao Wang, Weidong Zhou, Rong Wang, Chaoxu Jetten, Mike S. M. Hefting, Mariet M. Yin, Chengqing Qu, Jiuhui |
author_facet | Zhu, Guibing Wang, Shanyun Zhou, Leiliu Wang, Yu Zhao, Siyan Xia, Chao Wang, Weidong Zhou, Rong Wang, Chaoxu Jetten, Mike S. M. Hefting, Mariet M. Yin, Chengqing Qu, Jiuhui |
author_sort | Zhu, Guibing |
collection | PubMed |
description | Denitrification has long been regarded as the only pathway for terrestrial nitrogen (N) loss to the atmosphere. Here we demonstrate that large-scale anaerobic ammonium oxidation (anammox), an overlooked N loss process alternative to denitrification which bypasses nitrous oxide (N(2)O), is ubiquitous in inland waters of China and contributes significantly to N loss. Anammox rates in aquatic systems show different levels (1.0–975.9 μmol N m(−2) h(−1), n = 256) with hotspots occurring at oxic-anoxic interfaces and harboring distinct biogeochemical and biogeographical features. Extrapolation of these results to the China-national level shows that anammox could contribute about 2.0 Tg N yr(−1), which equals averagely 11.4% of the total N loss from China’s inland waters. Our results indicate that a significant amount of the nitrogen lost from inland waters bypasses denitrification, which is important for constructing more accurate climate models and may significantly reduce potential N(2)O emission risk at a large scale. |
format | Online Article Text |
id | pubmed-4661425 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46614252015-12-02 Ubiquitous anaerobic ammonium oxidation in inland waters of China: an overlooked nitrous oxide mitigation process Zhu, Guibing Wang, Shanyun Zhou, Leiliu Wang, Yu Zhao, Siyan Xia, Chao Wang, Weidong Zhou, Rong Wang, Chaoxu Jetten, Mike S. M. Hefting, Mariet M. Yin, Chengqing Qu, Jiuhui Sci Rep Article Denitrification has long been regarded as the only pathway for terrestrial nitrogen (N) loss to the atmosphere. Here we demonstrate that large-scale anaerobic ammonium oxidation (anammox), an overlooked N loss process alternative to denitrification which bypasses nitrous oxide (N(2)O), is ubiquitous in inland waters of China and contributes significantly to N loss. Anammox rates in aquatic systems show different levels (1.0–975.9 μmol N m(−2) h(−1), n = 256) with hotspots occurring at oxic-anoxic interfaces and harboring distinct biogeochemical and biogeographical features. Extrapolation of these results to the China-national level shows that anammox could contribute about 2.0 Tg N yr(−1), which equals averagely 11.4% of the total N loss from China’s inland waters. Our results indicate that a significant amount of the nitrogen lost from inland waters bypasses denitrification, which is important for constructing more accurate climate models and may significantly reduce potential N(2)O emission risk at a large scale. Nature Publishing Group 2015-11-27 /pmc/articles/PMC4661425/ /pubmed/26610807 http://dx.doi.org/10.1038/srep17306 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Zhu, Guibing Wang, Shanyun Zhou, Leiliu Wang, Yu Zhao, Siyan Xia, Chao Wang, Weidong Zhou, Rong Wang, Chaoxu Jetten, Mike S. M. Hefting, Mariet M. Yin, Chengqing Qu, Jiuhui Ubiquitous anaerobic ammonium oxidation in inland waters of China: an overlooked nitrous oxide mitigation process |
title | Ubiquitous anaerobic ammonium oxidation in inland waters of China: an overlooked nitrous oxide mitigation process |
title_full | Ubiquitous anaerobic ammonium oxidation in inland waters of China: an overlooked nitrous oxide mitigation process |
title_fullStr | Ubiquitous anaerobic ammonium oxidation in inland waters of China: an overlooked nitrous oxide mitigation process |
title_full_unstemmed | Ubiquitous anaerobic ammonium oxidation in inland waters of China: an overlooked nitrous oxide mitigation process |
title_short | Ubiquitous anaerobic ammonium oxidation in inland waters of China: an overlooked nitrous oxide mitigation process |
title_sort | ubiquitous anaerobic ammonium oxidation in inland waters of china: an overlooked nitrous oxide mitigation process |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4661425/ https://www.ncbi.nlm.nih.gov/pubmed/26610807 http://dx.doi.org/10.1038/srep17306 |
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