Bibliographie complète
Management scheme influence and nitrogen addition effects on soil CO2, CH4, and N2O fluxes in a Moso bamboo plantation
Type de ressource
Auteurs/contributeurs
- Zhang, Junbo (Auteur)
- Li, Quan (Auteur)
- Lv, Jianhua (Auteur)
- Peng, Changhui (Auteur)
- Gu, Zhikang (Auteur)
- Qi, Lianghua (Auteur)
- Song, Xuzhong (Auteur)
- Song, Xinzhang (Auteur)
Titre
Management scheme influence and nitrogen addition effects on soil CO2, CH4, and N2O fluxes in a Moso bamboo plantation
Résumé
Abstract
Background
It is still not clear whether the effects of N deposition on soil greenhouse gas (GHG) emissions are influenced by plantation management schemes. A field experiment was conducted to investigate the effects of conventional management (CM) versus intensive management (IM), in combination with simulated N deposition levels of control (ambient N deposition), 30 kg N·ha
− 1
·year
− 1
(N30, ambient + 30 kg N·ha
− 1
·year
− 1
), 60 kg N·ha
− 1
·year
− 1
(N60, ambient + 60 kg N·ha
− 1
·year
− 1
), or 90 kg N·ha
− 1
·year
− 1
(N90, ambient + 90 kg N·ha
− 1
·year
− 1
) on soil CO
2
, CH
4
, and N
2
O fluxes. For this, 24 plots were set up in a Moso bamboo (
Phyllostachys edulis
) plantation from January 2013 to December 2015. Gas samples were collected monthly from January 2015 to December 2015.
Results
Compared with CM, IM significantly increased soil CO
2
emissions and their temperature sensitivity (
Q
10
) but had no significant effects on soil CH
4
uptake or N
2
O emissions. In the CM plots, N30 and N60 significantly increased soil CO
2
emissions, while N60 and N90 significantly increased soil N
2
O emissions. In the IM plots, N30 and N60 significantly increased soil CO
2
and N
2
O emissions, while N60 and N90 significantly decreased soil CH
4
uptake. Overall, in both CM and IM plots, N30 and N60 significantly increased global warming potentials, whereas N90 did not significantly affect global warming potential. However, N addition significantly decreased the
Q
10
value of soil CO
2
emissions under IM but not under CM. Soil microbial biomass carbon was significantly and positively correlated with soil CO
2
and N
2
O emissions but significantly and negatively correlated with soil CH
4
uptake.
Conclusion
Our results indicate that management scheme effects should be considered when assessing the effect of atmospheric N deposition on GHG emissions in bamboo plantations.
Publication
Forest Ecosystems
Volume
8
Numéro
1
Pages
6
Date
12/2021
Abrév. de revue
For. Ecosyst.
Langue
en
ISSN
2197-5620
Consulté le
12/11/2024 16:16
Catalogue de bibl.
DOI.org (Crossref)
Référence
Zhang, J., Li, Q., Lv, J., Peng, C., Gu, Z., Qi, L., Song, X., & Song, X. (2021). Management scheme influence and nitrogen addition effects on soil CO2, CH4, and N2O fluxes in a Moso bamboo plantation. Forest Ecosystems, 8(1), 6. https://doi.org/10.1186/s40663-021-00285-0
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