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Stimulation of N2O emission by manure application to agricultural soils may largely offset carbon benefits: a global meta-analysis
Minghua Zhou;  Bo Zhu;  Shijie Wang;  Xinyu Zhu;  Harry Vereecken;  Nicolas Brüggemann
2017
Source PublicationGlobal Change Biology
Volume23Issue:10Pages:4068-4083
Abstract

Animal manure application as organic fertilizer does not only sustain agricultural productivity and increase soil organic carbon (SOC) stocks, but also affects soil nitrogen cycling and nitrous oxide (N2O) emissions. However, given that the sign and magnitude of manure effects on soil N2O emissions is uncertain, the net climatic impact of manure application in arable land is unknown. Here, we performed a global meta-analysis using field experimental data published in peer-reviewed journals prior to December 2015. In this meta-analysis, we quantified the responses of N2O emissions to manure application relative to synthetic N fertilizer application from individual studies and analyzed manure characteristics, experimental duration, climate, and soil properties as explanatory factors. Manure application significantly increased N2O emissions by an average 32.7% (95% confidence interval: 5.1-58.2%) compared to application of synthetic N fertilizer alone. The significant stimulation of N2O emissions occurred following cattle and poultry manure applications, subsurface manure application, and raw manure application. Furthermore, the significant stimulatory effects on N2O emissions were also observed for warm temperate climate, acid soils (pH < 6.5), and soil texture classes of sandy loam and clay loam. Average direct N2O emission factors (EFs) of 1.87% and 0.24% were estimated for upland soils and rice paddy soils receiving manure application, respectively. Although manure application increased SOC stocks, our study suggested that the benefit of increasing SOC stocks as GHG sinks could be largely offset by stimulation of soil N2O emissions and aggravated by CH4 emissions if, particularly for rice paddy soils, the stimulation of CH4 emissions by manure application was taken into account.

KeywordAnimal Manure Emission Factor Greenhouse Gas Balance Manure Characteristics Meta‐analysis Nitrous Oxide Soil Ph Soil Texture
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/8045
Collection环境地球化学国家重点实验室
Affiliation1.Institute of Bio- and Geosciences – Agrosphere (IBG-3), Forschungszentrum J€ulich GmbH, 52425 J€ulich, Germany
2.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, 610041 Chengdu, China
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550081 Guiyang, China
4.Puding Karst Ecosystem Observation and Research Station, Anshun, 561000 Guizhou, China
5.College of Surveying and Planning, Shangqiu Normal University, 476000 Henan, China
Recommended Citation
GB/T 7714
Minghua Zhou;Bo Zhu;Shijie Wang;Xinyu Zhu;Harry Vereecken;Nicolas Brüggemann. Stimulation of N2O emission by manure application to agricultural soils may largely offset carbon benefits: a global meta-analysis[J]. Global Change Biology,2017,23(10):4068-4083.
APA Minghua Zhou;Bo Zhu;Shijie Wang;Xinyu Zhu;Harry Vereecken;Nicolas Brüggemann.(2017).Stimulation of N2O emission by manure application to agricultural soils may largely offset carbon benefits: a global meta-analysis.Global Change Biology,23(10),4068-4083.
MLA Minghua Zhou;Bo Zhu;Shijie Wang;Xinyu Zhu;Harry Vereecken;Nicolas Brüggemann."Stimulation of N2O emission by manure application to agricultural soils may largely offset carbon benefits: a global meta-analysis".Global Change Biology 23.10(2017):4068-4083.
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