DOI: 10.1016/j.marpolbul.2016.06.068
Scopus记录号: 2-s2.0-84977664557
论文题名: Dissimilatory nitrate reduction to ammonium conserves nitrogen in anthropogenically affected subtropical mangrove sediments in Southeast China
作者: Cao W. ; Yang J. ; Li Y. ; Liu B. ; Wang F. ; Chang C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 110, 期: 1 起始页码: 155
结束页码: 161
语种: 英语
英文关键词: Anaerobic ammonium oxidation (anammox)
; Denitrification
; Dissimilatory nitrate reduction to ammonium (DNRA)
; Mangrove sediments
Scopus关键词: ammonium derivative
; nitric acid derivative
; nitrogen
; Avicennia
; China
; denitrification
; metabolism
; oxidation reduction reaction
; sediment
; Ammonium Compounds
; Avicennia
; China
; Denitrification
; Geologic Sediments
; Nitrates
; Nitrogen
; Oxidation-Reduction
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: In this study, basic sediment properties, nutrient flux, and nitrogen cycle (including denitrification, anaerobic ammonium oxidation [anammox], nitrification, and dissimilatory nitrate reduction to ammonium [DNRA]) were investigated at two sampling sites with different tree ages in the mangrove region of the Jiulong River Estuary, China. The results show that sediments at mangrove flat area have relatively strong capability to reduce NO3 −, in which the DNRA rate is relatively high (204.53 ± 48.32 μmol N m− 2 h− 1), which is approximately 75.7–85.9% of the total NO3 − reduction, while the denitrification and anammox rates are relatively low – only approximately 5.6–9.5% and 8.5–14.8% of the total NO3 − reduction, respectively. Thus, in the nitrogen-enriched subtropical mangrove system, DNRA is the main pathway to reduce NO3 −, and most of the input nitrogen is conserved as NH4 + in the system, which assures high productivity of the mangrove system. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86826
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: State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Key Laboratory of the Ministry of Education for Coastal Wetland Ecosystems, Xiamen University, Xiang'an South Road, Xiamen, China; Department of Environmental Engineering, National I-Lan University, 1 Sheen Long Road, Taiwan
Recommended Citation:
Cao W.,Yang J.,Li Y.,et al. Dissimilatory nitrate reduction to ammonium conserves nitrogen in anthropogenically affected subtropical mangrove sediments in Southeast China[J]. Marine Pollution Bulletin,2016-01-01,110(1)