气候变化领域集成服务门户(CCPortal): Effects of nitrogen and phosphorus additions on nitrous oxide fluxes in a peatland in NE China

CCPortal

DOI	10.1007/s11104-024-06569-y
	Effects of nitrogen and phosphorus additions on nitrous oxide fluxes in a peatland in NE China
	Yi, Boli; Lu, Fan; Sundberg, Sebastian; Wu, Jianghua; Yu, Zicheng; Wu, Zhengfang; Wang, Meng; Bu, Zhao-Jun
发表日期	2024
ISSN	0032-079X
EISSN	1573-5036
英文摘要	Aims The release of the major greenhouse gas N2O from peatlands may be affected by current global change. We tried to answer how N2O emission from peatlands responds to phosphorus (P) addition and the co-addition of P and nitrogen (N). MethodsWe investigated the long-term (12 years) effects of N (50 and 100 kg ha-1 yr-1) and P (5 kg ha(-1) yr(-1)) additions and their interaction on N2O fluxes in Hani peatland during the 2019 growing season. Results The addition of P, a low level of N or their co-addition had no effect on the source/sink function of N2O in the peatland. However, a high level of N addition turned the peatland into a sink of N2O with a cumulative flux of -164 +/- 51 g m(-2) during the growing season. This was probably due to the acceleration of plant litter decomposition, stimulation of hydrolase activity, and changes in the stoichiometric ratio of the peat soil. The co-addition of P and a high level of N turned the peatland into a source of N2O with a cumulative flux of 144 +/- 54 g m(-2) during the growing season by relieving nutrient limitation, accelerating the growth of vascular plants, and altering the litter input. Conclusions We suggest that the increase in nutrient availability caused by N deposition and agriculture fertilization can alter the N2O source/sink function of peatlands. These changes may have significant implications for the overall balance of greenhouse gas emissions and the role of peatlands in mitigating climate change.
英文关键词	Enzyme activity; Sphagnum; Changbai Mountains; N2O; Plant composition
语种	英语
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS记录号	WOS:001172884700001
来源期刊	PLANT AND SOIL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300018
作者单位	Northeast Normal University - China; Northeast Normal University - China; China University of Mining & Technology; Uppsala University; Swedish University of Agricultural Sciences; Memorial University Newfoundland
推荐引用方式 GB/T 7714	Yi, Boli,Lu, Fan,Sundberg, Sebastian,et al. Effects of nitrogen and phosphorus additions on nitrous oxide fluxes in a peatland in NE China[J],2024.
APA	Yi, Boli.,Lu, Fan.,Sundberg, Sebastian.,Wu, Jianghua.,Yu, Zicheng.,...&Bu, Zhao-Jun.(2024).Effects of nitrogen and phosphorus additions on nitrous oxide fluxes in a peatland in NE China.PLANT AND SOIL.
MLA	Yi, Boli,et al."Effects of nitrogen and phosphorus additions on nitrous oxide fluxes in a peatland in NE China".PLANT AND SOIL (2024).