Late Holocene elemental and isotopic carbon and nitrogen records from the East China Sea inner shelf: Implications for monsoon and upwelling
Hu, BQ (Hu, Bangqi)[ 1,2,3 ]; Li, J (Li, Jun)[ 1 ]; Zhao, JT (Zhao, Jingtao)[ 1,2,3 ]; Wei, HL (Wei, Helong)[ 1 ]; Yin, XJ (Yin, Xijie)[ 4 ]; Li, GG (Li, Guogang)[ 5 ]; Liu, Y (Liu, Yin)[ 1 ]; Sun, ZL (Sun, Zhilei)[ 1 ]; Zou, L (Zou, Liang)[ 1 ]; Bai, FL (Bai, Fenglong)[ 1 ]; Dou, YG (Dou, Yanguang)[ 1 ]; Wang, LB (Wang, Libo)[ 1 ]; Sun, RT (Sun, Rongtao)[ 6 ]
2014-05-20
发表期刊MARINE CHEMISTRY
卷号162页码:60-70
文章类型期刊论文
摘要

The East China Sea (ECS) is characterized by a relatively high riverine martial input that is associated with East Asian monsoon systems. In this study, we investigated a 272 cm-long sediment core (THB-2) from the ECS inner shelf for the AMS C-14 dating, grain size, total organic carbon (TOC), total nitrogen (TN), and stable carbon and nitrogen (delta C-13 and delta N-15) isotopes to provide insights into previous changes in the monsoon-climate and the intensity of the coastal upwelling. A three end-member (riverine, deltaic, and marine) mixing model was applied to determine the temporal variations in sedimentary organic matter sources. The transport and burial of the Changjiang riverine organic carbon in the ECS inner shelf is strongly controlled by the combined effects of the monsoon-climate and human activities during the late Holocene. The sedimentary delta N-15 records of the THB-2 core are more complex and may be best explained by changes in the nutrient utilization in the coastal zone surface waters. The downcore variations of the marine organic matter-delta N-15 are closely related to the intensity of East Asian summer monsoon during the last 3.6 ka. The stronger East Asian summer monsoon likely favored the intensive coastal upwelling and additional Changjiang discharge during the 3.6-2.7 ka and 0.4-0 ka periods, which triggered the greater relative nitrate utilization in the coastal surface water.

关键词East China Sea Stable Isotopes East Asian Monsoon Upwelling Late Holocene
DOI10.1016/j.marchem.2014.03.008
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9726
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Li, J (Li, Jun)[ 1 ]
作者单位1.Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;
3.Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;
4.Third Institute of Oceanography State Oceanic Administration, Xiamen 361005, China;
5.North China Sea Branch of The State Oceanic Administration, Qingdao 266033, China;
6.School of Resources & Environment Engineering, Shandong University of Technology, Zibo 255049, China
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Hu, BQ ,Li, J ,Zhao, JT ,et al. Late Holocene elemental and isotopic carbon and nitrogen records from the East China Sea inner shelf: Implications for monsoon and upwelling[J]. MARINE CHEMISTRY,2014,162:60-70.
APA Hu, BQ .,Li, J .,Zhao, JT .,Wei, HL .,Yin, XJ .,...&Sun, RT .(2014).Late Holocene elemental and isotopic carbon and nitrogen records from the East China Sea inner shelf: Implications for monsoon and upwelling.MARINE CHEMISTRY,162,60-70.
MLA Hu, BQ ,et al."Late Holocene elemental and isotopic carbon and nitrogen records from the East China Sea inner shelf: Implications for monsoon and upwelling".MARINE CHEMISTRY 162(2014):60-70.
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