DOI: 10.1002/2016GB005417
Scopus记录号: 2-s2.0-85014262173
论文题名: Net community production and carbon export during the late summer in the Ross Sea, Antarctica
作者: DeJong H ; B ; , Dunbar R ; B ; , Koweek D ; A ; , Mucciarone D ; A ; , Bercovici S ; K ; , Hansell D ; A
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2017
卷: 31, 期: 3 起始页码: 473
结束页码: 491
语种: 英语
英文关键词: Antarctica
; carbon export
; late summer
; net community production
; Ross Sea
Scopus关键词: algal bloom
; biogeochemistry
; carbon budget
; carbon flux
; diatom
; net primary production
; one-dimensional modeling
; phytoplankton
; regional pattern
; summer
; transport process
; Antarctica
; Antarctica
; East Antarctica
; Ross Sea
; Southern Ocean
; Terra Nova Bay
; Bacillariophyta
; Phaeocystis antarctica
英文摘要: The phytoplankton bloom in the Ross Sea is the largest in spatial extent and one of the most productive in Antarctica, yet the fate of the summer bloom remains poorly understood. Here we present carbon system data from the first biogeochemical process cruise to be conducted in both the western and central Ross Sea during late summer (February–March 2013). Using one-dimensional carbon budgets, we found evidence for substantial positive net community production (425 ± 204 mmol C m−2 d−1) during the late summer in Terra Nova Bay (TNB) of the western Ross Sea, which was rapidly exported to below 200 m. In addition, seasonally integrated carbon export was higher in diatom-dominated TNB (7.3 ± 0.9 mol C m−2) compared to the Phaeocystis antarctica-dominated central Ross Sea (3.4 ± 0.8 mol C m−2). Substantial late summer productivity and export may be a widespread phenomenon in Antarctic coastal regions that is not accounted for in regional carbon models. ©2017. 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/77759
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Earth System Science, Stanford University, Stanford, CA, United States; Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States
Recommended Citation:
DeJong H,B,, Dunbar R,et al. Net community production and carbon export during the late summer in the Ross Sea, Antarctica[J]. Global Biogeochemical Cycles,2017-01-01,31(3)