气候变化领域集成服务门户(CCPortal): Nonlinear response of soil nitric oxide emissions to fertilizer nitrogen across croplands

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DOI	10.1007/s00374-024-01818-9
	Nonlinear response of soil nitric oxide emissions to fertilizer nitrogen across croplands
	Wang, Yan; Yao, Zhisheng; Pan, Zhanlei; Guo, Haojie; Chen, Youchao; Cai, Yanjiang; Zheng, Xunhua
发表日期	2024
ISSN	0178-2762
EISSN	1432-0789
起始页码	60
结束页码	4
卷号	60 期号:4
英文摘要	Nitric oxide (NO), as a short-lived climate forcer, has direct and indirect detrimental impacts on environmental quality and human health. The amount of nitrogen (N) fertilizer application to agricultural soils is considered a robust predictor of total NO emissions, but the estimates of cropland NO emissions have large uncertainties due to the widely used constant emission factors (EF) as e.g., default values recommended by Intergovernmental Panel on Climate Change (IPCC) methodologies. By compiling 223 field experiments with at least three N-input levels across various croplands, we performed a meta-analysis to determine how soil NO emissions respond to N inputs. Our results showed for the first time that the mean change in EF per unit of additional N input (triangle EF) across all available data was significantly higher as compared to zero, indicating that the NO response to N additions increased significantly faster than the assumed linear. On average, upland grain crops showed significantly higher triangle EF than that of horticultural crops or lowland rice. A higher triangle EF was also appeared in sites with mean annual precipitation < 600 mm, mean annual temperature >= 15 degrees C, soil organic carbon >= 14 g C kg(- 1) or total N >= 1.4 g N kg(- 1), and where synthetic N fertilizers were usually applied. By assuming various N application rates, the IPCC default (0.7% or 1.1%) EF model would have overestimated or underestimated NO emissions compared to our triangle EF model. Overall, our meta-analysis results exert high potential to improve estimates of cropland NO inventories, and help address disparities in global NO budgets and develop more targeted mitigation efforts.
英文关键词	Nitric oxide; Nitrogen input; Emission factor; Nonlinear
语种	英语
WOS研究方向	Agriculture
WOS类目	Soil Science
WOS记录号	WOS:001190289600001
来源期刊	BIOLOGY AND FERTILITY OF SOILS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300676
作者单位	Zhejiang A&F University; Chinese Academy of Sciences; Institute of Atmospheric Physics, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Agricultural Sciences; Institute of Cotton Research, CAAS
推荐引用方式 GB/T 7714	Wang, Yan,Yao, Zhisheng,Pan, Zhanlei,et al. Nonlinear response of soil nitric oxide emissions to fertilizer nitrogen across croplands[J],2024,60(4).
APA	Wang, Yan.,Yao, Zhisheng.,Pan, Zhanlei.,Guo, Haojie.,Chen, Youchao.,...&Zheng, Xunhua.(2024).Nonlinear response of soil nitric oxide emissions to fertilizer nitrogen across croplands.BIOLOGY AND FERTILITY OF SOILS,60(4).
MLA	Wang, Yan,et al."Nonlinear response of soil nitric oxide emissions to fertilizer nitrogen across croplands".BIOLOGY AND FERTILITY OF SOILS 60.4(2024).