DOI: 10.1016/j.marpolbul.2017.04.047
Scopus记录号: 2-s2.0-85019161949
论文题名: Extremely high sulfate reduction, sediment oxygen demand and benthic nutrient flux associated with a large-scale artificial dyke and its implication to benthic-pelagic coupling in the Yeongsan River estuary, Yellow Sea
作者: Kim S.-H. ; Lee J.S. ; Hyun J.-H.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 120, 期: 2018-01-02 起始页码: 126
结束页码: 135
语种: 英语
英文关键词: Artificial dyke
; Benthic nutrient flux
; Benthic-pelagic coupling
; Sediment oxygen demand
; Sulfate reduction
; Yeongsan River estuary
Scopus关键词: Carbon
; Ecology
; Ecosystems
; Environmental impact
; Estuaries
; Nutrients
; Organic carbon
; Oxygen
; Rivers
; Sulfur compounds
; Artificial dyke
; Benthic nutrient fluxes
; Benthic-pelagic coupling
; Sediment oxygen demand
; Sulfate reduction
; Sediments
; oxygen
; sulfate
; superoxide dismutase
; sulfate
; benthic flux
; benthic-pelagic coupling
; biogeochemical cycle
; environmental impact
; oxygen
; primary production
; sulfate
; Article
; Baltic Sea
; benthos
; controlled study
; environmental impact
; estuary
; geochemistry
; marine environment
; microbial metabolism
; oxygen consumption
; pelagic zone
; sea
; sediment
; chemistry
; estuary
; oxidation reduction reaction
; river
; sediment
; Pacific Ocean
; South Cholla
; South Korea
; Yellow Sea
; Youngsan Estuary
; Estuaries
; Geologic Sediments
; Oxidation-Reduction
; Oxygen
; Rivers
; Sulfates
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: We investigated environmental impact of large-scale dyke on the sediment geochemistry, sulfate reduction rates (SRRs), sediment oxygen demand (SOD) and potential contribution of benthic nutrient flux (BNF) to primary production in the Yeongsan River estuary, Yellow Sea. The sediment near the dyke (YE1) with high organic carbon (Corg) content (> 4%, dry wt.) was characterized by extremely high SOD (327 mmol m− 2 d− 1) and SRRs (91–140 mmol m− 2 d− 1). The sulfate reduction accounted for 73% of Corg oxidation, and was responsible for strikingly high concentrations of NH4 + (7.7 mM), PO4 3 − (67 μM) and HS− (487 μM) in pore water. The BNF at YE1 accounted for approximately 200% of N and P required for primary production in the water column. The results present one of the most extreme cases that the construction of an artificial dyke may have profound impacts on the biogeochemical and ecological processes in coastal ecosystems. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88091
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: Department of Marine Sciences and Convergent Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do, South Korea; Division of Marine Chemistry and Geochemistry, Korea Institute of Ocean Science & Technology, 787 Haean-ro, Sangnok-gu, Ansan, Gyeonggi-do, South Korea
Recommended Citation:
Kim S.-H.,Lee J.S.,Hyun J.-H.. Extremely high sulfate reduction, sediment oxygen demand and benthic nutrient flux associated with a large-scale artificial dyke and its implication to benthic-pelagic coupling in the Yeongsan River estuary, Yellow Sea[J]. Marine Pollution Bulletin,2017-01-01,120(2018-01-02)