气候变化领域集成服务门户(CCPortal): Net Additions of Recalcitrant Dissolved Organic Carbon in the Deep Atlantic Ocean

CCPortal

DOI	10.1029/2018GB006162
	Net Additions of Recalcitrant Dissolved Organic Carbon in the Deep Atlantic Ocean
	Romera-Castillo C.; Álvarez M.; Pelegrí J.L.; Hansell D.A.; Álvarez-Salgado X.A.
发表日期	2019
ISSN	0886-6236
EISSN	1944-9224
起始页码	1162
结束页码	1173
卷号	33 期号:9
英文摘要	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.
英文关键词	Deep Atlantic Ocean; dissolved organic carbon; net addition; recalcitrant; sink; source
语种	英语
scopus关键词	carbon balance; carbon sequestration; carbon sink; dissolved organic carbon; water mass; Atlantic Ocean; Atlantic Ocean (North); Atlantic Ocean (South)
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129712
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
推荐引用方式 GB/T 7714	Romera-Castillo C.,Álvarez M.,Pelegrí J.L.,et al. Net Additions of Recalcitrant Dissolved Organic Carbon in the Deep Atlantic Ocean[J],2019,33(9).
APA	Romera-Castillo C.,Álvarez M.,Pelegrí J.L.,Hansell D.A.,&Álvarez-Salgado X.A..(2019).Net Additions of Recalcitrant Dissolved Organic Carbon in the Deep Atlantic Ocean.Global Biogeochemical Cycles,33(9).
MLA	Romera-Castillo C.,et al."Net Additions of Recalcitrant Dissolved Organic Carbon in the Deep Atlantic Ocean".Global Biogeochemical Cycles 33.9(2019).