북태평양에서 동아시아 먼지 유입에 따른 탄소 제거 기작 강화

Title
북태평양에서 동아시아 먼지 유입에 따른 탄소 제거 기작 강화
Alternative Title
Carbon sequestration in the North Pacific enhanced by East Asian dust deposition
Author(s)
김형직; 유찬민; 지상범; 황점식
KIOST Author(s)
Kim, Hyung Jeek(김형직)Yoo, Chan Min(유찬민)Chi, Sang Bum(지상범)
Publication Year
2019-12-10
Abstract
A time-series sediment trap was deployed from August 2011 to June 2012 at a depth of 4,500 m in the oligotrophic North Pacific Subtropical Gyre (NPSG). Total particle fluxes varied from 1.63 to 58.7 mg m-2day-1, with an average of 34.9 ( ± 13.6) mg m-2day-1 in spring (March to May) and 15.8 ( ± 8.52) mg m-2day-1 in the other seasons. Fluxes of biogenic and non-biogenic particles varied in phase with total particle flux. The enhanced non-biogenic material flux in spring wassynchronized with that of atmospheric dust deposition implying potential linkage between the enhanced particle flux and input of nutrients by atmospheric dust deposition. Our results show that the dust deposition in the NPSG enhances biological carbon pump efficiency. Attention needs to be paid to the response of biological carbon pump to Asian dust events and atmospheric dust deposition in the NPSG.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/21036
Bibliographic Citation
American Geophysical Union (AGU) 2019 fall meeting, pp.1, 2019
Publisher
American Geophysical Union
Type
Conference
Language
English
Publisher
American Geophysical Union
Related Researcher
Research Interests

deep sea mineral resources,deep sea sediments,심해저 광물자원,심해저 퇴적물,심해 환경

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