globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13648
论文题名:
Stimulation of N2O emission by manure application to agricultural soils may largely offset carbon benefits: a global meta-analysis
作者: Zhou M.; Zhu B.; Wang S.; Zhu X.; Vereecken H.; Brüggemann N.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2017
卷: 23, 期:10
起始页码: 4068
结束页码: 4083
语种: 英语
英文关键词: animal manure ; emission factor ; greenhouse gas balance ; manure characteristics ; meta-analysis ; nitrous oxide ; soil pH ; soil texture
Scopus关键词: Animalia ; Bos
英文摘要: 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. © 2017 John Wiley & Sons Ltd
资助项目: This study was supported by the CAS Pioneer Hundred Talents Program, the German BMBF project ‘DeltAdapt’ (Sustainable adaptation of coastal agro-ecosystems to increased salinity intrusion, grant no. 031A287C), the National Natural Science Foundation of China (grant nos. 41573079, 41271321, 41571130074), National Key Research and Development Program of China (2016YFC0502300 and 2016YFC0502602), and the Opening Fund of the State Key Laboratory of Environmental Geochemistry (SKLEG2016909).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60801
Appears in Collections:影响、适应和脆弱性

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作者单位: Institute of Bio- and Geosciences – Agrosphere (IBG-3), Forschungszentrum Jülich GmbH, Jülich, Germany; Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China; Puding Karst Ecosystem Observation and Research Station, Anshun, Guizhou, China; College of Surveying and Planning, Shangqiu Normal University, Henan, China

Recommended Citation:
Zhou M.,Zhu B.,Wang S.,et al. Stimulation of N2O emission by manure application to agricultural soils may largely offset carbon benefits: a global meta-analysis[J]. Global Change Biology,2017-01-01,23(10)
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