DOI: 10.1029/2018GB006162
论文题名: Net Additions of Recalcitrant Dissolved Organic Carbon in the Deep Atlantic Ocean
作者: Romera-Castillo C. ; Álvarez M. ; Pelegrí J.L. ; Hansell D.A. ; Álvarez-Salgado X.A.
刊名: Global Biogeochemical Cycles
ISSN: 0886-6236
EISSN: 1944-9224
出版年: 2019
卷: 33, 期: 9 语种: 英语
英文关键词: carbon balance
; carbon sequestration
; carbon sink
; dissolved organic carbon
; water mass
; Atlantic Ocean
; Atlantic Ocean (North)
; Atlantic Ocean (South)
学科: Deep Atlantic Ocean
; dissolved organic carbon
; net addition
; recalcitrant
; sink
; source
中文摘要: Most dissolved organic carbon (DOC) sequestered in the deep ocean has residence times of decades to thousands of years, with clear implications for climate regulation, though some net removal is typically observed with increasing water mass age. Here, a high-quality-high-resolution data set has allowed us to identify net additions of recalcitrant DOC in specific water masses of the deep South Atlantic. Overall, the South Atlantic is a net source of recalcitrant DOC, adding 0.027 ± 0.019 Pg C/year, while the North Atlantic is a net sink that removes 0.298 ± 0.141 Pg C/year. We find that the balance of addition/removal of recalcitrant DOC depends not only on the origin but also on the temperature, age, and depth of the water masses that circulate and mix in the Atlantic Ocean. Future changes in the water mass composition and circulation patterns due to climate change would eventually affect that balance, altering the carbon cycle. ©2019. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160107
Appears in Collections: 气候变化与战略
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作者单位: Institut de Ciències del Mar, CSIC, Barcelona, Spain; Department of Ocean Sciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States; Instituto Español de Oceanografía, A Coruña, Spain; Instituto de Investigacións Mariñas, CSIC, Vigo, Spain
Recommended Citation:
Romera-Castillo C.,Álvarez M.,Pelegrí J.L.,et al. Net Additions of Recalcitrant Dissolved Organic Carbon in the Deep Atlantic Ocean[J]. Global Biogeochemical Cycles,2019-01-01,33(9)