DOI: 10.1016/j.atmosenv.2017.01.047
Scopus记录号: 2-s2.0-85012309093
论文题名: Greenhouse gases concentrations and fluxes from subtropical small reservoirs in relation with watershed urbanization
作者: Wang X ; , He Y ; , Yuan X ; , Chen H ; , Peng C ; , Yue J ; , Zhang Q ; , Diao Y ; , Liu S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 154 起始页码: 225
结束页码: 235
语种: 英语
英文关键词: GHG
; Land use
; Potential controls
; Small reservoirs
; Spatiotemporal variation
; Urbanization
Scopus关键词: Agriculture
; Carbon dioxide
; Forestry
; Gas emissions
; Land use
; Nitrogen
; Organic carbon
; Phosphorus
; Regression analysis
; Sewage
; Surface waters
; Watersheds
; Agricultural reservoirs
; Anthropogenic carbon
; Dissolved organic carbon
; Global urbanization
; Potential control
; Small reservoirs
; Spatio-temporal variation
; Urbanization
; Greenhouse gases
; carbon
; carbon dioxide
; chlorophyll a
; dissolved organic matter
; methane
; nitrogen
; nitrous oxide
; organic carbon
; phosphorus
; surface water
; anthropogenic source
; concentration (composition)
; flux measurement
; greenhouse gas
; land use
; reservoir
; sewage
; spatial variation
; subtropical region
; temporal variation
; urbanization
; watershed
; agricultural land
; alkalinity
; Article
; atmosphere
; carbon dioxide tension
; carbon footprint
; concentration (parameters)
; gas exchange
; gas field
; gas transport
; human activities
; land use
; partial pressure
; priority journal
; regression analysis
; sewage
; tropics
; urbanization
; water quality
; water temperature
; watershed
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Greenhouse gas (GHG) emissions from reservoirs and global urbanization have gained widespread attention, yet the response of GHG emissions to the watershed urbanization is poorly understood. Meanwhile, there are millions of small reservoirs worldwide that receive and accumulate high loads of anthropogenic carbon and nitrogen due to watershed urbanization and can therefore be hotspots of GHG emissions. In this study, we assessed the GHG concentrations and fluxes in sixteen small reservoirs draining urban, agricultural and forested watersheds over a period of one year. The concentrations of pCO2, CH4and N2O in sampled urban reservoirs that received more sewage input were higher than those in agricultural reservoirs, and were 3, 7 and 10 times higher than those in reservoirs draining in forested areas, respectively. Accordingly, urban reservoirs had the highest estimated GHG flux rate. Regression analysis indicated that dissolved total phosphorus, dissolved organic carbon (DOC) and chlorophyll-a (Chl-a) had great effect on CO2production, while the nitrogen (N) and phosphorus (P) content of surface water were closely related to CH4and N2O production. Therefore, these parameters can act as good predictors of GHG emissions in urban watersheds. Given the rapid progress of global urbanization, small urban reservoirs play a crucial role in accounting for regional GHG emissions and cannot be ignored. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82464
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, China; College of Resources and Environmental Science, Chongqing University, Chongqing, China; Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China; Zoige Peatland and Global Change Research Station, Chinese Academy of Sciences, Hongyuan, China; Institut des Sciences de l'Environnement, Université du Québec à Montréal (UQAM), 201 Président-Kennedy, Montréal, Canada; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, College of Forestry, Northwest A&F University, Yangling, Shaanxi, China
Recommended Citation:
Wang X,, He Y,, Yuan X,et al. Greenhouse gases concentrations and fluxes from subtropical small reservoirs in relation with watershed urbanization[J]. Atmospheric Environment,2017-01-01,154