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Effects of nitrogen deposition and litter layer management on soil CO(2), N(2)O, and CH(4) emissions in a subtropical pine forestland

Forestland soils play vital role in regulating global soil greenhouse gas (GHG) budgets, but the interactive effect of the litter layer management and simulated nitrogen (N) deposition on these GHG flux has not been elucidated clearly in subtropical forestland. A field trial was conducted to study t...

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Autores principales: Fan, Jianling, Luo, Ruyi, McConkey, Brian G., Ziadi, Noura
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7265295/
https://www.ncbi.nlm.nih.gov/pubmed/32488002
http://dx.doi.org/10.1038/s41598-020-65952-8
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author Fan, Jianling
Luo, Ruyi
McConkey, Brian G.
Ziadi, Noura
author_facet Fan, Jianling
Luo, Ruyi
McConkey, Brian G.
Ziadi, Noura
author_sort Fan, Jianling
collection PubMed
description Forestland soils play vital role in regulating global soil greenhouse gas (GHG) budgets, but the interactive effect of the litter layer management and simulated nitrogen (N) deposition on these GHG flux has not been elucidated clearly in subtropical forestland. A field trial was conducted to study these effects by using litter removal method under 0 and 40 kg N ha(−1) yr(−1) addition in a subtropical forestland in Yingtan, Jiangxi Province, China. Soil CO(2) emission was increased by N addition (18–24%) but decreased by litter removal (24–32%). Litter removal significantly (P < 0.05) decreased cumulative N(2)O emission by 21% in treatments without N addition but only by 10% in treatments with 40 kg N ha(−1) yr(−1) addition. Moreover, litter-induced N(2)O emission under elevated N deposition (0.094 kg N(2)O-N ha(−1)) was almost the same as without N addition (0.088 kg N(2)O-N ha(−1)). Diffusion of atmospheric CH(4) into soil was facilitated by litter removal, which increased CH(4) uptake by 55%. Given that the increasing trend of atmospheric N deposition in future, which would reduce litterfall in subtropical N-rich forest, the effect of surface litter layer change on soil GHG emissions should be considered in assessing forest GHG budgets and future climate scenario modeling.
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spelling pubmed-72652952020-06-05 Effects of nitrogen deposition and litter layer management on soil CO(2), N(2)O, and CH(4) emissions in a subtropical pine forestland Fan, Jianling Luo, Ruyi McConkey, Brian G. Ziadi, Noura Sci Rep Article Forestland soils play vital role in regulating global soil greenhouse gas (GHG) budgets, but the interactive effect of the litter layer management and simulated nitrogen (N) deposition on these GHG flux has not been elucidated clearly in subtropical forestland. A field trial was conducted to study these effects by using litter removal method under 0 and 40 kg N ha(−1) yr(−1) addition in a subtropical forestland in Yingtan, Jiangxi Province, China. Soil CO(2) emission was increased by N addition (18–24%) but decreased by litter removal (24–32%). Litter removal significantly (P < 0.05) decreased cumulative N(2)O emission by 21% in treatments without N addition but only by 10% in treatments with 40 kg N ha(−1) yr(−1) addition. Moreover, litter-induced N(2)O emission under elevated N deposition (0.094 kg N(2)O-N ha(−1)) was almost the same as without N addition (0.088 kg N(2)O-N ha(−1)). Diffusion of atmospheric CH(4) into soil was facilitated by litter removal, which increased CH(4) uptake by 55%. Given that the increasing trend of atmospheric N deposition in future, which would reduce litterfall in subtropical N-rich forest, the effect of surface litter layer change on soil GHG emissions should be considered in assessing forest GHG budgets and future climate scenario modeling. Nature Publishing Group UK 2020-06-02 /pmc/articles/PMC7265295/ /pubmed/32488002 http://dx.doi.org/10.1038/s41598-020-65952-8 Text en © The Author(s) 2020 Open Access 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/.
spellingShingle Article
Fan, Jianling
Luo, Ruyi
McConkey, Brian G.
Ziadi, Noura
Effects of nitrogen deposition and litter layer management on soil CO(2), N(2)O, and CH(4) emissions in a subtropical pine forestland
title Effects of nitrogen deposition and litter layer management on soil CO(2), N(2)O, and CH(4) emissions in a subtropical pine forestland
title_full Effects of nitrogen deposition and litter layer management on soil CO(2), N(2)O, and CH(4) emissions in a subtropical pine forestland
title_fullStr Effects of nitrogen deposition and litter layer management on soil CO(2), N(2)O, and CH(4) emissions in a subtropical pine forestland
title_full_unstemmed Effects of nitrogen deposition and litter layer management on soil CO(2), N(2)O, and CH(4) emissions in a subtropical pine forestland
title_short Effects of nitrogen deposition and litter layer management on soil CO(2), N(2)O, and CH(4) emissions in a subtropical pine forestland
title_sort effects of nitrogen deposition and litter layer management on soil co(2), n(2)o, and ch(4) emissions in a subtropical pine forestland
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7265295/
https://www.ncbi.nlm.nih.gov/pubmed/32488002
http://dx.doi.org/10.1038/s41598-020-65952-8
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