DOI: 10.1016/j.marpolbul.2017.04.005
Scopus记录号: 2-s2.0-85018649815
论文题名: Diurnal variation of CO2, CH4, and N2O emission fluxes continuously monitored in-situ in three environmental habitats in a subtropical estuarine wetland
作者: Yang W.-B. ; Yuan C.-S. ; Tong C. ; Yang P. ; Yang L. ; Huang B.-Q.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 119, 期: 1 起始页码: 289
结束页码: 298
语种: 英语
英文关键词: Diurnal variation
; Emission flux
; Environmental habitats
; Greenhouse gases (GHGs)
; Subtropical natural estuarine wetland
Scopus关键词: Carbon dioxide
; Ecosystems
; Estuaries
; Global warming
; Nitrogen oxides
; Rivers
; Tropics
; Water quality
; Water resources
; Wetlands
; Atmospheric concentration
; Diurnal variation
; Emission fluxes
; Environmental habitat
; Estuarine wetlands
; Non-dispersive infrared
; Phragmites australis
; Southeastern china
; Greenhouse gases
; carbon dioxide
; methane
; nitrous oxide
; river water
; carbon dioxide
; diurnal variation
; environmental monitoring
; estuarine pollution
; greenhouse gas
; methane
; nitrous oxide
; subtropical region
; wetland
; air sampling
; Article
; carbon footprint
; China
; concentration (parameters)
; environmental monitoring
; estuary
; geographic distribution
; greenhouse effect
; greenhouse gas
; habitat
; marsh
; mudflat
; nonhuman
; photorespiration
; photosynthesis
; Phragmites australis
; water analysis
; water quality
; wetland
; ecosystem
; environmental monitoring
; wetland
; China
; Fujian
; Minjiang Estuary
; Phragmites australis
; Carbon Dioxide
; China
; Ecosystem
; Environmental Monitoring
; Greenhouse Effect
; Methane
; Nitrous Oxide
; Wetlands
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Wetlands play a crucial role in modulating atmospheric concentrations of greenhouse gases (GHGs) such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). The key factors controlling GHG emission from subtropical estuarine wetlands were investigated in this study, which continuously monitored the uptake/emission of GHGs (CO2, CH4, and N2O) by/from a subtropical estuarine wetland located in the Minjiang estuary in the coastal region of southeastern China. A self-designed floating chamber was used to collect air samples on-site at three environmental habitats (Phragmites australis marsh, mudflats, and river water). The CO2, CH4, and N2O concentrations were then measured using an automated nondispersive infrared analyzer. The magnitudes of the CO2 and N2O emission fluxes at the three habitats were ordered as river water > P. australis > mudflats. P. australis emitted GHGs through photosynthesis and respiration processes. Emissions of CH4 from P. australis and the mudflats were revealed to be slightly higher than those from the river water. The total GHG emission fluxes at the three environmental habitats were quite similar (4.68–4.78 g m− 2 h− 1). However, when the total carbon dioxide equivalent fluxes (CO2-e) were considered, the river water was discovered to emit the most CO2-e compared with P. australis and the mudflats. Based on its potential to increase global warming, N2O was the main contributor to the total GHG emission, with that emitted from the river water being the most considerable. Tidal water carried onto the marsh had its own GHG content and thus has acted as a source or sink of GHGs. However, water quality had a large effect on GHG emissions from the river water whereas the tidal water height did not. Both high salinity and large amounts of sulfates in the wetlands explicitly inhibited the activity of CH4-producing bacteria, particularly at nighttime. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87573
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan; Key Laboratory of Humid Sub-Tropical Eco-Geographical Processes of Ministry of Education of China, Fujian Normal University, Fuzhou, China; Department of Marine Environment and Engineering, National Sun Yet-sen University, Kaohsiung, Taiwan; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, Fujian, China
Recommended Citation:
Yang W.-B.,Yuan C.-S.,Tong C.,et al. Diurnal variation of CO2, CH4, and N2O emission fluxes continuously monitored in-situ in three environmental habitats in a subtropical estuarine wetland[J]. Marine Pollution Bulletin,2017-01-01,119(1)