High-resolution reconstruction of historical flood events in the Changjiang River catchment based on geochemical and biomarker records

doi:10.1016/j.chemgeo.2018.09.003

	High-resolution reconstruction of historical flood events in the Changjiang River catchment based on geochemical and biomarker records
	Zhang, Rui 1,2,3,4; Li, Tiegang 6,7,8; Russell, James 4; Zhou, Yurou 9; Zhang, Fan 9; Liu, Zhiyong 10; Guan, Minglei 2; Han, Qi 11
刊名	CHEMICAL GEOLOGY
	2018-11-05
卷号	499 页码:58-70
关键词	East China Sea BIT BrGDGTs Sr-Nd isotope Marginal Sea Sediment geochemistry
ISSN号	0009-2541
DOI	10.1016/j.chemgeo.2018.09.003
英文摘要	Extreme hydrologic events such as floods have caused catastrophic losses to modern human society, especially in highly developed coastal areas. However, high-resolution reconstructions of extreme flood events are scarce due to a paucity of suitable proxies in marginal seas. Here we present a high-resolution record of extreme flood events in the Changjiang River catchment during the last 110 years using samples from the subaqueous delta of Changjiang River estuary. We used a multi-proxy approach including Sr-Nd isotopes, Zr/Rb ratio and biomarkers (branched GDGTs, i.e. brGDGTs, and crenarchaeol, and the ratio of the two as calculated by the BIT index) as proxies for the evolution of extreme floods in the Changjiang River catchment. Rapid shifts in these proxies agreed with the timing of floods on the Changjiang River. We also tested the reliability of biomarker indices to reconstruct paleoflood events in this area. The results indicated that the abundances of GDGTs fluctuated in concert with historical floods. Cross-spectral analyses revealed that historical floods in the Changjiang River catchment were consistent with ENSO variance.
资助项目	Natural Science Foundation of Lianyungang City[SH1506] ; Natural Science Foundation of Lianyungang City[CN1510]
WOS关键词	EAST CHINA SEA ; DIALKYL GLYCEROL TETRAETHERS ; SUSPENDED PARTICULATE MATTER ; ND ISOTOPIC COMPOSITIONS ; SOIL ORGANIC-MATTER ; 3 GORGES DAM ; YANGTZE-RIVER ; INNER SHELF ; CONTINENTAL-SHELF ; SPECTRAL-ANALYSIS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000447407300004
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25407]
专题	自然资源部第一海洋研究所
通讯作者	Zhang, Rui; Li, Tiegang
作者单位	1.Huaihai Inst Technol, Jiangsu Key Lab Marine Bioresources & Environm, 59 Cangwu Rd, Lianyungang 222005, Jiangsu, Peoples R China 2.Huaihai Inst Technol, Sch Geodesy & Geomat Engn, 59 Cangwu Rd, Lianyungang 222005, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, 6 Xianxialing Rd, Qingdao 266071, Peoples R China 4.Brown Univ, Dept Earth Environm & Planetary Sci, 324 Brook St, Providence, RI 02912 USA 5.Huaihai Inst Technol, Coinnovat Ctr Jiangsu Marine Bioind Technol, 59 Cangwu Rd, Lianyungang 222005, Jiangsu, Peoples R China 6.State Ocean Adm, Inst Oceanog 1, 6 Xianxialing Rd, Qingdao 266061, Shandong, Peoples R China 7.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, 6 Xianxialing Rd, Qingdao 266061, Peoples R China 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 9.Huaihai Inst Technol, Dept Chem Engn, 59 Cangwu Rd, Lianyungang 222005, Jiangsu, Peoples R China 10.Soochow Univ, Coll Med, Sch Radiat Med & Protect, 199 Renai Rd,Ind Pk, Suzhou 215021, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Rui,Li, Tiegang,Russell, James,et al. High-resolution reconstruction of historical flood events in the Changjiang River catchment based on geochemical and biomarker records[J]. CHEMICAL GEOLOGY,2018,499:58-70.
APA	Zhang, Rui.,Li, Tiegang.,Russell, James.,Zhou, Yurou.,Zhang, Fan.,...&Han, Qi.(2018).High-resolution reconstruction of historical flood events in the Changjiang River catchment based on geochemical and biomarker records.CHEMICAL GEOLOGY,499,58-70.
MLA	Zhang, Rui,et al."High-resolution reconstruction of historical flood events in the Changjiang River catchment based on geochemical and biomarker records".CHEMICAL GEOLOGY 499(2018):58-70.