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Environmental controls on coral skeletal delta C-13 in the northern South China Sea
[Deng, Wenfeng; Wei, Gangjian] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Xie, Luhua] Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China; [Yu, Kefu] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China; wfdeng@gig.ac.cn; gjwei@gig.ac.cn
2013
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
ISSN2169-8953
卷号118期号:4页码:1359-1368
摘要In this paper, we investigate the relationship between seasonal climatic and environmental variables, and the skeletal C-13 of modern and mid-Holocene Porites lutea corals from the southern coast of Hainan Island in the northern South China Sea. No significant correlations were observed between C-13 in the modern coral and solar insolation or sea surface temperature. However, seasonal variability of C-13 in the modern coral covaries with rainfall on Hainan Island. Furthermore, the seasonal variations of C-13 in both the modern and mid-Holocene coral are synchronous with those of the coral O-18, which is a proxy for seawater O-18 and, in turn, largely controlled by local rainfall. These observations suggest that coral C-13 variations are closely associated with rainfall in this region. Given that river runoff contains dissolved inorganic carbon (DIC) with a negative C-13, we suggest that periods of high rainfall on Hainan Island deliver increased amounts of C-13-depleted DIC to coastal seawater, resulting in an enhanced negative C-13 in the corals. Our findings, together with previous studies, appear to demonstrate that in coastal environments, coral skeletal C-13 levels are controlled mainly by terrestrial carbon input and are significantly influenced by terrestrial river runoff. Consequently, the geochemical interpretation of coral C-13 records may differ between coastal areas and offshore areas or the open ocean.
部门归属海洋地质
关键词Coral C-13 Solar Insolation Rainfall Sea Surface Temperature South China Sea
学科领域Environmental Sciences ; Geosciences, Multidisciplinary
资助者The authors would like to thank the Editor Dennis Baldocchi and two anonymous reviewers for their helpful comments and constructive suggestions. Allan Chivas is thanked for his valuable suggestions and discussions. The English of the manuscript was improved by Stallard Scientific Editing. This work was financially supported by the National Basic Research Program of China (2009CB421206, 2013CB956103) and the National Natural Sciences Foundation of China (41173004, 40902050, 40830852). This is contribution IS-1738. from GIGCAS. ; The authors would like to thank the Editor Dennis Baldocchi and two anonymous reviewers for their helpful comments and constructive suggestions. Allan Chivas is thanked for his valuable suggestions and discussions. The English of the manuscript was improved by Stallard Scientific Editing. This work was financially supported by the National Basic Research Program of China (2009CB421206, 2013CB956103) and the National Natural Sciences Foundation of China (41173004, 40902050, 40830852). This is contribution IS-1738. from GIGCAS. ; The authors would like to thank the Editor Dennis Baldocchi and two anonymous reviewers for their helpful comments and constructive suggestions. Allan Chivas is thanked for his valuable suggestions and discussions. The English of the manuscript was improved by Stallard Scientific Editing. This work was financially supported by the National Basic Research Program of China (2009CB421206, 2013CB956103) and the National Natural Sciences Foundation of China (41173004, 40902050, 40830852). This is contribution IS-1738. from GIGCAS. ; The authors would like to thank the Editor Dennis Baldocchi and two anonymous reviewers for their helpful comments and constructive suggestions. Allan Chivas is thanked for his valuable suggestions and discussions. The English of the manuscript was improved by Stallard Scientific Editing. This work was financially supported by the National Basic Research Program of China (2009CB421206, 2013CB956103) and the National Natural Sciences Foundation of China (41173004, 40902050, 40830852). This is contribution IS-1738. from GIGCAS.
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语种英语
资助者The authors would like to thank the Editor Dennis Baldocchi and two anonymous reviewers for their helpful comments and constructive suggestions. Allan Chivas is thanked for his valuable suggestions and discussions. The English of the manuscript was improved by Stallard Scientific Editing. This work was financially supported by the National Basic Research Program of China (2009CB421206, 2013CB956103) and the National Natural Sciences Foundation of China (41173004, 40902050, 40830852). This is contribution IS-1738. from GIGCAS. ; The authors would like to thank the Editor Dennis Baldocchi and two anonymous reviewers for their helpful comments and constructive suggestions. Allan Chivas is thanked for his valuable suggestions and discussions. The English of the manuscript was improved by Stallard Scientific Editing. This work was financially supported by the National Basic Research Program of China (2009CB421206, 2013CB956103) and the National Natural Sciences Foundation of China (41173004, 40902050, 40830852). This is contribution IS-1738. from GIGCAS. ; The authors would like to thank the Editor Dennis Baldocchi and two anonymous reviewers for their helpful comments and constructive suggestions. Allan Chivas is thanked for his valuable suggestions and discussions. The English of the manuscript was improved by Stallard Scientific Editing. This work was financially supported by the National Basic Research Program of China (2009CB421206, 2013CB956103) and the National Natural Sciences Foundation of China (41173004, 40902050, 40830852). This is contribution IS-1738. from GIGCAS. ; The authors would like to thank the Editor Dennis Baldocchi and two anonymous reviewers for their helpful comments and constructive suggestions. Allan Chivas is thanked for his valuable suggestions and discussions. The English of the manuscript was improved by Stallard Scientific Editing. This work was financially supported by the National Basic Research Program of China (2009CB421206, 2013CB956103) and the National Natural Sciences Foundation of China (41173004, 40902050, 40830852). This is contribution IS-1738. from GIGCAS.
WOS记录号WOS:000329871400002
引用统计
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/11092
专题中科院边缘海地质重点实验室
通讯作者wfdeng@gig.ac.cn; gjwei@gig.ac.cn
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GB/T 7714
[Deng, Wenfeng,Wei, Gangjian] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China,[Xie, Luhua] Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China,et al. Environmental controls on coral skeletal delta C-13 in the northern South China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2013,118(4):1359-1368.
APA [Deng, Wenfeng,Wei, Gangjian] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China,[Xie, Luhua] Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China,[Yu, Kefu] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China,wfdeng@gig.ac.cn,&gjwei@gig.ac.cn.(2013).Environmental controls on coral skeletal delta C-13 in the northern South China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,118(4),1359-1368.
MLA [Deng, Wenfeng,et al."Environmental controls on coral skeletal delta C-13 in the northern South China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 118.4(2013):1359-1368.
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