Spatial and seasonal variations of organic carbon distributions in typical intertidal sediments of China

doi:10.1016/j.orggeochem.2020.103993

	Spatial and seasonal variations of organic carbon distributions in typical intertidal sediments of China
	Zhang, Yushuang ; Xiao, Xiaotong ; Liu, Dongyan; Wang, Enhui ; Liu, Ke ; Ding, Yang ; Yao, Peng ; Zhao, Meixun
发表期刊	ORGANIC GEOCHEMISTRY
ISSN	0146-6380
	2020-04
卷号	142 页码:UNSP 103993
关键词	YELLOW-RIVER ESTUARY TETRAETHER MEMBRANE-LIPIDS CHANGJIANG YANGTZE-RIVER TIDAL FLAT SEDIMENTS PHYTOPLANKTON COMMUNITY SURFACE SEDIMENTS GRAIN-SIZE TERRESTRIAL BIOMARKERS MATTER SOURCES FRESH-WATER
研究领域	Geochemistry & Geophysics
DOI	10.1016/j.orggeochem.2020.103993
产权排序	[Zhang, Yushuang; Xiao, Xiaotong; Liu, Ke; Ding, Yang; Yao, Peng; Zhao, Meixun] Ocean Univ China, Inst Adv Ocean Study, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China; [Zhang, Yushuang; Xiao, Xiaotong; Liu, Ke; Ding, Yang; Yao, Peng; Zhao, Meixun] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China; [Liu, Dongyan] East China Normal Univ, Inst Ecochongming, State Key Lab Estuarine & Coastal Res, 500 Dongchuan Rd, Shanghai 200241, Peoples R China; [Wang, Enhui] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
通讯作者	Xiao, Xiaotong(xtxiao@ouc.edu.cn) ; Zhao, Meixun(maxzhao@ouc.edu.cn)
作者部门	中国科学院海岸带环境过程重点实验室
英文摘要	Intertidal zones are the main sites for land-ocean interaction and play an important role in transporting and accumulating organic carbon (OC). Understanding sources and preservation of sedimentary OC are vital to better evaluate the processes controlling the OC distribution in intertidal zones. In this study, we present bulk parameters of total organic carbon (TOC), delta C-13(org), grain size and biomarker contents in surface sediments of 14 typical intertidal zones along China's coastline during both the wet season (WS) and the dry season (DS). Statistical analysis of our data set showed that TOC and biomarker contents were generally high in small estuaries, intermediate but more variable in large estuaries and low in non-estuaries; and these distribution patterns broadly correlated with sedimentary clay contents. TOC and biomarker contents were generally higher in the WS than the DS reflecting both OC inputs and preservation. A binary mixing model based on delta C-13(org) and biomarker proxies revealed that large estuaries were characterized by higher terrestrial OC fractions (62-80%) except for the Yellow River Estuary (24%), while lower terrestrial OC fractions occurred in non-estuaries (13-15%). Variable OC contributions were found in small estuaries, with most sites characterized by low terrestrial OC contributions (3-35%), but high terrestrial OC contributions were found at the Qiantang River Estuary site (59%) and the Jiulong River Estuary site (67%). Carbon stocks in Chinese intertidal sediments are comparable with those in marine sediments from shelf areas and the Exclusive Economic Zone (EEZ). This study suggests that intertidal sediments are potentially an important carbon sink. (C) 2020 Elsevier Ltd. All rights reserved.
文章类型	Article
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China [U1706219, 41630966, 41520104009]
收录类别	SCI
语种	英语
关键词[WOS]	YELLOW-RIVER ESTUARY ; TETRAETHER MEMBRANE-LIPIDS ; CHANGJIANG YANGTZE-RIVER ; TIDAL FLAT SEDIMENTS ; PHYTOPLANKTON COMMUNITY ; SURFACE SEDIMENTS ; GRAIN-SIZE ; TERRESTRIAL BIOMARKERS ; MATTER SOURCES ; FRESH-WATER
研究领域[WOS]	Geochemistry & Geophysics
WOS记录号	WOS:000525786300001
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/25057
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
作者单位	1.Ocean Univ China, Inst Adv Ocean Study, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China; 3.East China Normal Univ, Inst Ecochongming, State Key Lab Estuarine & Coastal Res, 500 Dongchuan Rd, Shanghai 200241, Peoples R China; 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yushuang,Xiao, Xiaotong,Liu, Dongyan,et al. Spatial and seasonal variations of organic carbon distributions in typical intertidal sediments of China[J]. ORGANIC GEOCHEMISTRY,2020,142:UNSP 103993.
APA	Zhang, Yushuang.,Xiao, Xiaotong.,Liu, Dongyan.,Wang, Enhui.,Liu, Ke.,...&Zhao, Meixun.(2020).Spatial and seasonal variations of organic carbon distributions in typical intertidal sediments of China.ORGANIC GEOCHEMISTRY,142,UNSP 103993.
MLA	Zhang, Yushuang,et al."Spatial and seasonal variations of organic carbon distributions in typical intertidal sediments of China".ORGANIC GEOCHEMISTRY 142(2020):UNSP 103993.

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