Gurmesa, GA, Wang, A, Li, S et al. (24 more authors) (2022) Retention of deposited ammonium and nitrate and its impact on the global forest carbon sink. Nature Communications, 13. 880. ISSN 2041-1723
Abstract
The impacts of enhanced nitrogen (N) deposition on the global forest carbon (C) sink and other ecosystem services may depend on whether N is deposited in reduced (mainly as ammonium) or oxidized forms (mainly as nitrate) and the subsequent fate of each. However, the fates of the two key reactive N forms and their contributions to forest C sinks are unclear. Here, we analyze results from 13 ecosystem-scale paired 15N-labelling experiments in temperate, subtropical, and tropical forests. Results show that total ecosystem N retention is similar for ammonium and nitrate, but plants take up more labelled nitrate (202515%) (mean maximum minimum) than ammonium (12168%) while soils retain more ammonium (576549%) than nitrate (465932%). We estimate that the N deposition-induced C sink in forests in the 2010s is 0.720.960.49 Pg C yr−1, higher than previous estimates because of a larger role for oxidized N and greater rates of global N deposition.
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Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Geography (Leeds) > Ecology & Global Change (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 12 Jan 2022 11:13 |
Last Modified: | 16 Aug 2023 12:59 |
Published Version: | https://www.nature.com/articles/s41467-022-28345-1... |
Status: | Published |
Publisher: | Springer Nature |
Identification Number: | 10.1038/s41467-022-28345-1 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:182432 |