IOCAS-IR  > 海洋生态与环境科学重点实验室
Summer carbonate chemistry dynamics in the Southern Yellow Sea and the East China Sea: Regional variations and controls
Qu, Baoxiao1,2; Song, Jinming1; Yuan, Huamao1; Li, Xuegang1; Li, Ning1; Duan, Liqin1; Chen, Xin1,2; Lu, Xi1,2
2015-12-01
Source PublicationCONTINENTAL SHELF RESEARCH
Volume111Issue:2015Pages:250-261
SubtypeArticle
AbstractSurface partial pressure of CO2 (pCO(2)) and pertinent parameters (i.e., pH, total alkalinity, dissolved oxygen, chlorophyll a) were investigated in the southern Yellow Sea (SYS) and the East China Sea (ECS) basing on two surveys conducted in June and August of 2013. The results suggested carbonate chemistry dynamics and related controlling factors were provided with significant temporal and spatial variations in different subregions of these two continental shelf seas. The western of SYS (SYSW) was CO2-undersaturated both in June and August, with the average FCO2 -1.88 mmol m(-2) d(-1) and -3.72 mmol m(-2) d(-1), respectively. The phytoplanlcton initiated CO2-absorption and the suspended sediment induced CO2-emission jointly controlled the air-sea CO2 exchange there. The center of SYS (SYSC) also behaved as an obvious CO2 sink (-1.57 mmol m(-2) d(-1) and -3.99 mmol m(-2) d(-1) in June and August, respectively), probably due to elevated TA/DIC ratio and the subsequent effects of spring bloom. As for the Yangtze River estuary (YRE), it changed from an obvious CO2 sink (-1.28 mmol m(-2) d(-1)) in June into a very weak CO2 source (0.04 mmol m(-2) d(-1)) in August. This change was probably associated with the rising of seawater temperature and monthly variation of Yangtze River discharge. The inner shelf of ECS (ECSS) experienced obvious air-sea CO2 flux changes during from June (- 8.88 mmol m(-2) d(-1)) to August (-036 mmol m(-2) d(-1)) as well. Biological DIC consumption in the upper layer and DIC regenerated from respiration in the subsurface jointly controlled this pCO(2) variation. As a whole, the SYS and ECS acted as an obvious CO2 sink during summer and could absorb atmospheric CO2 with the average air-sea flux (FCO2) -2.68 mmol m(-2) d(-1).
KeywordCarbon Dioxide Air-sea Gas Exchange Continental Shelf Southern Yellow Sea East China Sea Yangtze River
DOI10.1016/j.csr.2015.08.017
Indexed BySCI
Language英语
WOS IDWOS:000367119100013
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/86635
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qu, Baoxiao,Song, Jinming,Yuan, Huamao,et al. Summer carbonate chemistry dynamics in the Southern Yellow Sea and the East China Sea: Regional variations and controls[J]. CONTINENTAL SHELF RESEARCH,2015,111(2015):250-261.
APA Qu, Baoxiao.,Song, Jinming.,Yuan, Huamao.,Li, Xuegang.,Li, Ning.,...&Lu, Xi.(2015).Summer carbonate chemistry dynamics in the Southern Yellow Sea and the East China Sea: Regional variations and controls.CONTINENTAL SHELF RESEARCH,111(2015),250-261.
MLA Qu, Baoxiao,et al."Summer carbonate chemistry dynamics in the Southern Yellow Sea and the East China Sea: Regional variations and controls".CONTINENTAL SHELF RESEARCH 111.2015(2015):250-261.
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