globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12290
论文题名:
Nitrous oxide emissions in the Shanghai river network: Implications for the effects of urban sewage and IPCC methodology
作者: Yu Z.; Deng H.; Wang D.; Ye M.; Tan Y.; Li Y.; Chen Z.; Xu S.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期:10
起始页码: 2999
结束页码: 3010
语种: 英语
英文关键词: IPCC method ; Land use ; Nitrous oxide ; River network ; Urban sewage
Scopus关键词: ammonium ; emission ; land use ; nitrification ; nitrous oxide ; river water ; saturation ; sewage ; urban area ; urbanization ; water quality ; water temperature ; watershed ; China ; Shanghai ; ammonium derivative ; nitrate ; nitrous oxide ; air pollutant ; article ; chemistry ; China ; city ; environmental monitoring ; IPCC method ; land use ; river ; river network ; sewage ; urban sewage ; water pollutant ; IPCC method ; land use ; nitrous oxide ; river network ; urban sewage ; Air Pollutants ; Ammonium Compounds ; China ; Cities ; Environmental Monitoring ; Nitrates ; Nitrous Oxide ; Rivers ; Sewage ; Water Pollutants, Chemical
英文摘要: Global nitrogen (N) enrichment has resulted in increased nitrous oxide (N2O) emission that greatly contributes to climate change and stratospheric ozone destruction, but little is known about the N2O emissions from urban river networks receiving anthropogenic N inputs. We examined N2O saturation and emission in the Shanghai city river network, covering 6300 km2, over 27 months. The overall mean saturation and emission from 87 locations was 770% and 1.91 mg N2O-N m-2 d-1, respectively. Nitrous oxide (N2O) saturation did not exhibit a clear seasonality, but the temporal pattern was co-regulated by both water temperature and N loadings. Rivers draining through urban and suburban areas receiving more sewage N inputs had higher N2O saturation and emission than those in rural areas. Regression analysis indicated that water ammonium (NH4+) and dissolved oxygen (DO) level had great control on N2O production and were better predictors of N2O emission in urban watershed. About 0.29 Gg N2O-N yr-1 N2O was emitted from the Shanghai river network annually, which was about 131% of IPCC's prediction using default emission values. Given the rapid progress of global urbanization, more study efforts, particularly on nitrification and its N2O yielding, are needed to better quantify the role of urban rivers in global riverine N2O emission. © 2013 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62320
Appears in Collections:影响、适应和脆弱性

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作者单位: Department of Geography, School of Resources and Environment Science, East China Normal University, Shanghai, 200062, China; Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ, 07102, United States

Recommended Citation:
Yu Z.,Deng H.,Wang D.,et al. Nitrous oxide emissions in the Shanghai river network: Implications for the effects of urban sewage and IPCC methodology[J]. Global Change Biology,2013-01-01,19(10)
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