345 0

Full metadata record

DC FieldValueLanguage
dc.contributor.author현정호-
dc.date.accessioned2019-05-22T01:49:47Z-
dc.date.available2019-05-22T01:49:47Z-
dc.date.issued2018-03-
dc.identifier.citationLIMNOLOGY AND OCEANOGRAPHY, v. 63, No. S1, Page. 410-424en_US
dc.identifier.issn0024-3590-
dc.identifier.urihttps://aslopubs.onlinelibrary.wiley.com/doi/full/10.1002/lno.10750-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/105419-
dc.description.abstractExperimental determinations of nitrogen cycling in deep-sea sediments are strongly underrepresented in the databases. To investigate the total N2 production rates and relative contribution of denitrification and anaerobic ammonium oxidation (anammox) to benthic fixed-N removal processes, we conducted 15N isotope-labeling incubation experiments in whole cores and slurries at nine stations across the continental margin from the shelf (˂ 200 m) and into the deep (˃ 2000 m) Ulleung Basin (UB) in the East Sea. The total N2 production rates (anammox plus denitrification) in the center of the UB (8.4 ± 0.2 μmol N m−2 h−1) were high compared to most other deep-sea sediments at similar water depths. Denitrification rates decreased from the shelf (7.6 ± 0.6 μmol N m−2 h−1) to the basin (3.2 ± 0.4 μmol N m−2 h−1), in proportion to benthic oxygen consumption, whereas anammox rates remained relatively constant or even increased slightly (1.3–4.1 μmol N m−2 h−1). The contribution of anammox to the total N2 production (ra) increased with increasing water depth from the shelf (ca. 17%) to the basin (ca. 56%). The enhanced ra in the center of the UB was associated with an increased availability of nitrite for anammox, which was likely a result of the competitive suppression of denitrification by manganese reduction under MnO2-rich conditions. Our results emphasize the importance of anammox as a sink for reactive nitrogen in deep-sea sediments and contribute toward a mechanistic understanding of the factors controlling benthic reactive nitrogen loss in the ocean.en_US
dc.description.sponsorshipWe thank the crew on board the R/V Onnuri, the R/V Haeyang 2000, the R/V Tamyang, and the R/V Ieodo. We also thank Laura Bristow for help with IRMS analysis and J. S. Hwang for helpful comments to improve this manuscript. This research was a part of the project titled "Korean Long-term Marine Ecological Research (K-LTMER)" and "Deep Water Circulation and Material Cycling in the East Sea" funded by the Ministry of Oceans and Fisheries, Korea. Overall process on the experimental design for N<INF>2</INF> production measurements, analysis data interpretation were performed as a part of international collaborative research program between National Research Foundation of Korea (NRF-2012-013- 2012S1A2A1A01030760) and projects funded by the Danish National Research Foundation (DNRF53) and the Danish Council for Independent Research.en_US
dc.language.isoen_USen_US
dc.publisherWILEYen_US
dc.subjectANAEROBIC AMMONIUM OXIDATIONen_US
dc.subjectORGANIC-CARBON OXIDATIONen_US
dc.subjectINTACT SEDIMENT CORESen_US
dc.subjectOXYGEN MINIMUM ZONEen_US
dc.subjectMARINE-SEDIMENTSen_US
dc.subjectSULFATE REDUCTIONen_US
dc.subjectEAST/JAPAN SEAen_US
dc.subjectBENTHIC DENITRIFICATIONen_US
dc.subjectESTUARINE SEDIMENTen_US
dc.subjectSURFACE SEDIMENTSen_US
dc.titleN2 production through denitrification and anammox across the continental margin (shelf–slope–rise) of the Ulleung Basin, East Seaen_US
dc.typeArticleen_US
dc.relation.noS1-
dc.relation.volume63-
dc.identifier.doi10.1002/lno.10750-
dc.relation.page410-424-
dc.relation.journalLIMNOLOGY AND OCEANOGRAPHY-
dc.contributor.googleauthorNa, Taehee-
dc.contributor.googleauthorThamdrup, Bo-
dc.contributor.googleauthorKim, Bomina-
dc.contributor.googleauthorKim, Sung-Han-
dc.contributor.googleauthorVandieken, Verona-
dc.contributor.googleauthorKang, Dong-Jin-
dc.contributor.googleauthorHyun, Jung-Ho-
dc.relation.code2018002165-
dc.sector.campusE-
dc.sector.daehakCOLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E]-
dc.sector.departmentDEPARTMENT OF MARINE SCIENCE AND CONVERGENCE ENGINEERING-
dc.identifier.pidhyunjh-


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE