Retention of deposited ammonium and nitrate and its impact on the global forest carbon sink

Geshere Abdisa Gurmesa; Ang Wang; Shanlong Li; Shushi Peng; Wim de Vries; Per Gundersen; Philippe Ciais; Oliver L. Phillips; Erik A. Hobbie; Weixing Zhu; Knute Nadelhoffer; Yi Xi; Edith Bai; Tao Sun; Dexiang Chen; Wenjun Zhou; Yiping Zhang; Yingrong Guo; Jiaojun Zhu; Lei Duan; Dejun Li; Keisuke Koba; Enzai Du; Guoyi Zhou; Xingguo Han; Shijie Han; Yunting Fang

doi:10.1038/s41467-022-28345-1

Retention of deposited ammonium and nitrate and its impact on the global forest carbon sink

Geshere Abdisa Gurmesa, Ang Wang, Shanlong Li, Shushi Peng, Wim de Vries, Per Gundersen, Philippe Ciais, Oliver L. Phillips, Erik A. Hobbie, Weixing Zhu, Knute Nadelhoffer, Yi Xi, Edith Bai, Tao Sun, Dexiang Chen, Wenjun Zhou, Yiping Zhang, Yingrong Guo, Jiaojun Zhu, Lei DuanDejun Li, Keisuke Koba, Enzai Du, Guoyi Zhou, Xingguo Han, Shijie Han, Yunting Fang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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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 (201525%) (meanminimummaximum) than ammonium (12816%) while soils retain more ammonium (574965%) than nitrate (463259%). We estimate that the N deposition-induced C sink in forests in the 2010s is 0.720.490.96 Pg C yr⁻¹, higher than previous estimates because of a larger role for oxidized N and greater rates of global N deposition.

Original language	English
Article number	880
Journal	Nature Communications
Volume	13
Issue number	1
DOIs	https://doi.org/10.1038/s41467-022-28345-1
Publication status	Published - Dec 2022

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Retention fraction of 15N-labelled deposited ammonium and nitrate in forests
Gurmesa, G. A. (Creator), Wang, A. (Creator), Li, S. (Creator), Peng, S. (Creator), de Vries, W. (Creator), Gundersen, P. (Creator), Ciais, P. (Creator), Phillips, O. L. (Creator), Hobbie, E. (Creator), Zhu, W. (Creator), Nadelhoffer, K. (Creator), Xi, Y. (Creator), Bai, E. (Creator), Sun, T. (Creator), Chen, D. (Creator), Zhou, W. (Creator), Zhang, Y. (Creator), Guo, Y. (Creator), Zhu, J. (Creator), Duan, L. (Creator), Li, D. (Creator), Koba, K. (Creator), Du, E. (Creator), Zhou, G. (Creator), Han, X. (Creator), Han, S. (Creator) & Fang, Y. (Creator), Chinese Academy of Sciences, 20 Dec 2021
DOI: 10.5061/dryad.cfxpnvx3d
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Gurmesa, G. A., Wang, A., Li, S., Peng, S., de Vries, W., Gundersen, P., Ciais, P., Phillips, O. L., Hobbie, E. A., Zhu, W., Nadelhoffer, K., Xi, Y., Bai, E., Sun, T., Chen, D., Zhou, W., Zhang, Y., Guo, Y., Zhu, J., ... Fang, Y. (2022). Retention of deposited ammonium and nitrate and its impact on the global forest carbon sink. Nature Communications, 13(1), Article 880. https://doi.org/10.1038/s41467-022-28345-1

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title = "Retention of deposited ammonium and nitrate and its impact on the global forest carbon sink",

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 (201525%) (meanminimummaximum) than ammonium (12816%) while soils retain more ammonium (574965%) than nitrate (463259%). We estimate that the N deposition-induced C sink in forests in the 2010s is 0.720.490.96 Pg C yr−1, higher than previous estimates because of a larger role for oxidized N and greater rates of global N deposition.",

author = "Gurmesa, {Geshere Abdisa} and Ang Wang and Shanlong Li and Shushi Peng and {de Vries}, Wim and Per Gundersen and Philippe Ciais and Phillips, {Oliver L.} and Hobbie, {Erik A.} and Weixing Zhu and Knute Nadelhoffer and Yi Xi and Edith Bai and Tao Sun and Dexiang Chen and Wenjun Zhou and Yiping Zhang and Yingrong Guo and Jiaojun Zhu and Lei Duan and Dejun Li and Keisuke Koba and Enzai Du and Guoyi Zhou and Xingguo Han and Shijie Han and Yunting Fang",

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doi = "10.1038/s41467-022-28345-1",

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Gurmesa, GA, Wang, A, Li, S, Peng, S, de Vries, W, Gundersen, P, Ciais, P, Phillips, OL, Hobbie, EA, Zhu, W, Nadelhoffer, K, Xi, Y, Bai, E, Sun, T, Chen, D, Zhou, W, Zhang, Y, Guo, Y, Zhu, J, Duan, L, Li, D, Koba, K, Du, E, Zhou, G, Han, X, Han, S & Fang, Y 2022, 'Retention of deposited ammonium and nitrate and its impact on the global forest carbon sink', Nature Communications, vol. 13, no. 1, 880. https://doi.org/10.1038/s41467-022-28345-1

TY - JOUR

T1 - Retention of deposited ammonium and nitrate and its impact on the global forest carbon sink

AU - Gurmesa, Geshere Abdisa

AU - Wang, Ang

AU - Li, Shanlong

AU - Peng, Shushi

AU - de Vries, Wim

AU - Gundersen, Per

AU - Ciais, Philippe

AU - Phillips, Oliver L.

AU - Hobbie, Erik A.

AU - Zhu, Weixing

AU - Nadelhoffer, Knute

AU - Xi, Yi

AU - Bai, Edith

AU - Sun, Tao

AU - Chen, Dexiang

AU - Zhou, Wenjun

AU - Zhang, Yiping

AU - Guo, Yingrong

AU - Zhu, Jiaojun

AU - Duan, Lei

AU - Li, Dejun

AU - Koba, Keisuke

AU - Du, Enzai

AU - Zhou, Guoyi

AU - Han, Xingguo

AU - Han, Shijie

AU - Fang, Yunting

PY - 2022/12

Y1 - 2022/12

N2 - 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 (201525%) (meanminimummaximum) than ammonium (12816%) while soils retain more ammonium (574965%) than nitrate (463259%). We estimate that the N deposition-induced C sink in forests in the 2010s is 0.720.490.96 Pg C yr−1, higher than previous estimates because of a larger role for oxidized N and greater rates of global N deposition.

AB - 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 (201525%) (meanminimummaximum) than ammonium (12816%) while soils retain more ammonium (574965%) than nitrate (463259%). We estimate that the N deposition-induced C sink in forests in the 2010s is 0.720.490.96 Pg C yr−1, higher than previous estimates because of a larger role for oxidized N and greater rates of global N deposition.

U2 - 10.1038/s41467-022-28345-1

DO - 10.1038/s41467-022-28345-1

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C2 - 35169118

AN - SCOPUS:85124680100

SN - 2041-1723

VL - 13

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 880

ER -

Retention of deposited ammonium and nitrate and its impact on the global forest carbon sink

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Retention fraction of 15N-labelled deposited ammonium and nitrate in forests

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