Transparent exopolymer particle (TEP) and its impact on marine carbon transport along the East China Sea coast

doi:10.1016/j.ecolind.2022.108791

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Transparent exopolymer particle (TEP) and its impact on marine carbon transport along the East China Sea coast
	Wen, Lilian 1,2,3,4; Li, Xuegang 1,2,3,4; Song, Jinming 1,2,3,4; Ma, Jun 1,2,3,4
刊名	ECOLOGICAL INDICATORS
	2022-04-01
卷号	137 页码:10
关键词	Transparent exopolymer particle (TEP) The East China Sea coast Carbon transport Controlling factors
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2022.108791
通讯作者	Li, Xuegang(lixuegang@qdio.ac.cn) ; Song, Jinming(jmsong@qdio.ac.cn)
英文摘要	Transparent exopolymer particle (TEP) is a transparent jellylike substance characterized with high carbon concentration, playing an important role in the marine carbon cycle. Based on a survey of the East China Sea coast in summer of 2020, the distribution, controlling factors of TEP and its impact on marine carbon trans-portation were discussed. The results showed that the TEP in the surface decreases from northwest to southeast gradually with an average concentration of 214.90 mu g Xeq./L, which is basically consistent with the distribution of POC, Chl a and NO3-N. The TEP in the water of 10 m, 20 m, and 30 m also gradually decreases from northwest to southeast horizontally, while it is high in the surface and bottom layer, and low in the middle water layer vertically. The hydrological situation of the study area is complex and is the main factor affecting the distribution of various parameters including TEP. The TEP in the seawater has the characteristics of high TEP-C/POC, low settling ratio and high degradation ratio. The TEP-C/POC in the seawater is 32.03%, which is extremely higher than that of 14.46% in the surface sediments; the settling ratio of TEP is 17.67%, which is extremely lower than that of 50.31% for POC; the degradation ratio of TEP is 82.79%, which is extremely higher than that of 49.69% for POC. These results together indicated that TEP in the seawater has a longer residence time and is more easily degraded than other forms of POC.
资助项目	Marine S&T Fund of Shandong Province for the Pilot National Laboratory for Marine Science and Technology (Qingdao)[2022QNLM040003] ; National Natural Science Foundation of China[91958103] ; Stratiogic Priority Research Program of the Chinese Academy of Sciences[XDA19060401] ; China Postdoctoral Science Foundation[2021M693207] ; Qingdao Postdoctoral Applied Research Project ; Wenhai Program of QNLM[2021WHZZB0900]
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000792782300006
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/179206]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Li, Xuegang; Song, Jinming
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wen, Lilian,Li, Xuegang,Song, Jinming,et al. Transparent exopolymer particle (TEP) and its impact on marine carbon transport along the East China Sea coast[J]. ECOLOGICAL INDICATORS,2022,137:10.
APA	Wen, Lilian,Li, Xuegang,Song, Jinming,&Ma, Jun.(2022).Transparent exopolymer particle (TEP) and its impact on marine carbon transport along the East China Sea coast.ECOLOGICAL INDICATORS,137,10.
MLA	Wen, Lilian,et al."Transparent exopolymer particle (TEP) and its impact on marine carbon transport along the East China Sea coast".ECOLOGICAL INDICATORS 137(2022):10.