DOI: 10.1016/j.atmosenv.2017.10.060
Scopus记录号: 2-s2.0-85032687740
论文题名: Characteristics of GHG flux from water-air interface along a reclaimed water intake area of the Chaobai River in Shunyi, Beijing
作者: He B ; , He J ; , Wang J ; , Li J ; , Wang F
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 172 起始页码: 102
结束页码: 108
语种: 英语
英文关键词: CH4 flux
; Chaobai River
; CO2 flux
; Reclaimed water
; Spatio-diurnal variation
Scopus关键词: Air intakes
; Carbon
; Carbon dioxide
; Flow of water
; Greenhouse gases
; Inlet flow
; Linear regression
; Organic carbon
; Phase interfaces
; Reclamation
; Regression analysis
; Rivers
; CH4 flux
; CO2 fluxes
; Diurnal variation
; Greenhouse gas (GHG)
; Multiple linear regression analysis
; Re-claimed water
; Total Organic Carbon
; Water flow direction
; Water resources
; carbon
; carbon dioxide
; chlorophyll a
; river water
; air-water interaction
; bicarbonate
; carbon dioxide
; carbon sink
; chlorophyll a
; diurnal variation
; greenhouse gas
; pH
; spatiotemporal analysis
; total organic carbon
; transformation
; water flow
; water temperature
; air temperature
; Article
; carbon source
; China
; circadian rhythm
; controlled study
; environmental reclamation
; greenhouse gas
; nonhuman
; pH
; photosynthesis
; phytoplankton
; priority journal
; river
; water temperature
; Beijing [China]
; Chaobai River
; China
; Shunyi
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: To understand greenhouse gas (GHG) flux in reclaimed water intake area impact on urban climate, ‘static chamber’ method was used to investigate the spatio-diurnal variations and the influence factors of GHG fluxes at water-air interface from Jian River to Chaobai River. Results showed that the average fluxes of CO2 from the Jian River and the Chaobai River were 73.46 mg(m2·h)−1 and -64.75 mg(m2·h)−1, respectively. CO2 was emitted the most in the Jian River, but it was absorbed from the atmosphere in the Chaobai River. Unary linear regression analyses demonstrated that Chlorophyll a (Chl a) and pH variation controlled the carbon source and sink from the Jian River to the Chaobai River. The diurnal variation of CO2 fluxes was higher at night than in the daytime in the Jian River, and it was the inverse in the Chaobai River, which highly correlated with dissociative CO2 and HCO3 − transformation to CO3 2-. The average fluxes of CH4 from the Jian River and Chaobai River were 0.973 mg(m2·h)−1 and 5.556 mg(m2·h)−1, respectively, which increased along the water flow direction. Unary and multiple linear regression analyses demonstrated that Chl a and total organic carbon (TOC) controlled the increase of CH4 along the flow direction. The diurnal variation of CH4 fluxes was slightly higher in the daytime than at night due to the effect of water temperature. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83149
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Water Resources and Environmental Engineering, School of Water Resources and Environment, China University of Geosciences, Beijing, China; East China Institute of Technology, Nanchang, China
Recommended Citation:
He B,, He J,, Wang J,et al. Characteristics of GHG flux from water-air interface along a reclaimed water intake area of the Chaobai River in Shunyi, Beijing[J]. Atmospheric Environment,2018-01-01,172