DOI: 10.1002/2013GL059142
论文题名: Decadal shift of biogenic sinking particle flux in the western North Pacific subpolar region
作者: Watanabe Y.W. ; Shigemitsu M. ; Ujiie T. ; Minami H.
刊名: Geophysical Research Letters
ISSN: 0094-10473
EISSN: 1944-10204
出版年: 2014
卷: 41, 期: 2 起始页码: 513
结束页码: 518
语种: 英语
英文关键词: Biogenic sinking particle
; Decadal climate change
; North Pacific
Scopus关键词: Carbon dioxide
; Climate change
; Annual average
; Atmospheric CO
; Biogenic opals
; Long-term trend
; North Pacific
; Particulate organic carbon fluxes
; Sinking particles
; Western North Pacific
; Calcium carbonate
; climate change
; decadal variation
; particulate organic carbon
; particulate organic matter
; polar region
; seawater
; time series
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: Time series of biogenic sinking particle flux in the western North Pacific subpolar region over two decades (1989-2008) revealed that the biogenic CaCO3 (CC) flux has shown a significant decreasing trend of 2.7% year-1 (annual average, -0.88 ± 0.13 mg m2 day -1 year-1) along with the decreasing particulate organic carbon (POC) flux of 0.7% year-1, while the biogenic opal (OP) flux had no long-term trend. Comparing these results with the decreasing rate of satellite-derived surface CC with -0.7% year-1, we concluded that three fourths of the decreasing trend of CC flux was derived from the strengthening of CaCO3 dissolution through seawater column due to the weakening of water ventilation and the rest was from the decline of CaCO 3-shelled species, indicating the enhancement of the efficiency in oceanic sequestration of atmospheric CO2 in the sea surface of this region due to the increase of OP/CC ratio. ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84892970438&doi=10.1002%2f2013GL059142&partnerID=40&md5=54eeef14811e926fbdc46f7e09ce8243
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7737
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Faculty of Earth Environmental Science, Hokkaido University, Sapporo, Japan
Recommended Citation:
Watanabe Y.W.,Shigemitsu M.,Ujiie T.,et al. Decadal shift of biogenic sinking particle flux in the western North Pacific subpolar region[J]. Geophysical Research Letters,2014-01-01,41(2).