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 (1). 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%) (meanmaximumminimum) 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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2022. This is an open access article under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0) (https://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: | 26 Apr 2022 12:48 |
Last Modified: | 26 Apr 2022 12:48 |
Status: | Published |
Publisher: | Nature Research |
Identification Number: | 10.1038/s41467-022-28345-1 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:186050 |