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Seasonal variations of seawater pCO(2) and sea-air CO2 fluxes in a fringing coral reef, northern South China Sea
Yan, Hongqiang; Yu, Kefu; Shi, Qi; Tan, Yehui; Liu, Guohui; Zhao, Meixia; Li, Shu; Chen, Tianran; Wang, Yinghui; Yu, KF (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China.; Yu, KF (reprint author), Guangxi Univ, Coral Reef Res Ctr China, Nanning 530004, Peoples R China.
2016
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
卷号121期号:1页码:998-1008
摘要Evidence based on four field surveys conducted between July 2009 and April 2011 indicates that both sea surface partial pressures of CO2 (pCO(2)) and sea-air CO2 fluxes at Luhuitou fringing reef in Sanya, Hainan Island, northern South China Sea (SCS) are subject to significant seasonal variations. The diurnal variation of seawater pCO(2) ranges from 264 to 579 mu atm in summer, which is much larger than that in autumn (152-335 mu atm), in winter (84-260 mu atm), and in spring (114-228 mu atm). The sea-air CO2 flux in summer (similar to 9.6 mmol CO2 m(-2) d(-1)) is also larger than that in other seasons (i.e.,similar to 3 mmol CO2 m(-2) d(-1) in spring, similar to 3.5 mmol CO2 m(-2) d(-1) in autumn, and similar to 2.7 mmol CO2 m(-2) d(-1) in winter). The atmospheric pCO(2) in this reef shows small diurnal and seasonal variations. The integration of the time-series pCO(2) data shows that the reef area is a weak source of atmospheric CO2 at similar to 0.54 mol CO2 m(-2) yr(-1). Further analyses indicate that the seasonal variations of the surface seawater pCO(2) in Luhuitou fringing reef are mainly affected by seasonally-dependent biological metabolic processes (organic processe and inorganic process), and that the organic process play a more important role than the inorganic process. Seasonal sea surface temperature (SST) variations and hydrodynamic processes may also have some influence on seawater pCO(2) variation.
部门归属[Yan, Hongqiang; Yu, Kefu; Shi, Qi; Tan, Yehui; Liu, Guohui; Zhao, Meixia; Li, Shu; Chen, Tianran] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China; [Yu, Kefu; Wang, Yinghui] Guangxi Univ, Coral Reef Res Ctr China, Nanning 530004, Peoples R China ; 边缘海地质
关键词Seawater Pco(2) Sea-air Co2 Flux Seasonal Variation Fringing Coral Reef South China Sea
学科领域Oceanography
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15603
专题中科院边缘海地质重点实验室
通讯作者Yu, KF (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China.; Yu, KF (reprint author), Guangxi Univ, Coral Reef Res Ctr China, Nanning 530004, Peoples R China.
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Yan, Hongqiang,Yu, Kefu,Shi, Qi,et al. Seasonal variations of seawater pCO(2) and sea-air CO2 fluxes in a fringing coral reef, northern South China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2016,121(1):998-1008.
APA Yan, Hongqiang.,Yu, Kefu.,Shi, Qi.,Tan, Yehui.,Liu, Guohui.,...&Yu, KF .(2016).Seasonal variations of seawater pCO(2) and sea-air CO2 fluxes in a fringing coral reef, northern South China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,121(1),998-1008.
MLA Yan, Hongqiang,et al."Seasonal variations of seawater pCO(2) and sea-air CO2 fluxes in a fringing coral reef, northern South China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 121.1(2016):998-1008.
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