Provenance and climate changes inferred from magnetic properties of the sediments from the lower Yangtze River (China) during the last 130 years

doi:10.1016/j.jseaes.2019.01.036

IVPP-IR > 中科院古脊椎所（2000年以后）

	Provenance and climate changes inferred from magnetic properties of the sediments from the lower Yangtze River (China) during the last 130 years
	Zheng, Yan 1,2; Yang, Shouye 3; Deng, Chenglong 4
	2019-05-15
发表期刊	JOURNAL OF ASIAN EARTH SCIENCES
ISSN	1367-9120
卷号	175 页码:128-137
通讯作者	Zheng, Yan(zhengyan@ivpp.ac.cn)
摘要	It is essential to have a clear scientific view on paleoclimate change and its potential environmental and socioeconomic impacts for the prediction of future climate change. Fluvial sediment is one of the best archives for the investigations of high-resolution environmental variability and anthropogenic impacts on catchment over the last hundreds or even thousands years (Anthropocene). In this study, we examine magnetic properties of a 130-year fluvial sediment profile from an island in the main channel of the lower Yangtze mainstream, which aims to determine the connections between modern observational data and paleoclimate signals from sediments. Sediments from the upper Yangtze River is characterized by high concentration of magnetite, which is different from the middle reach. The difference of magnetic properties allows us to trace particles in the lower reach back to upstream of the Yangtze River. Climate change that reconstructed from physical properties of sediment (susceptibility and mean grain size) is comparable to those records in historical documents, which provides a possible way to obtain precise ages. The calibrated sedimentation rate reflects long-term variation of flood/drought events over the catchment, which is dominantly controlled by the climate circulation of Pacific. The enhanced human impacts since 1950s especially in the mid-lower reaches are observed. Therefore, riverine sediment not only contains paleoclimate information, but also reflects human activities.
关键词	Provenance Climate change Yangtze River Flood/drought events
DOI	10.1016/j.jseaes.2019.01.036
关键词[WOS]	HEAVY-METAL POLLUTION ; DIAGENETIC ALTERATION ; LOWER REACHES ; MAJOR RIVERS ; INNER SHELF ; CHANGJIANG ; EAST ; IMPACTS ; SOIL ; SEA
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[41472146] ; National Natural Science Foundation of China (NSFC)[41730531] ; National Natural Science Foundation of China (NSFC)[41574061] ; National Natural Science Foundation of China (NSFC)[41104043] ; 973 project from Ministry of Science and Technology in China[2015CB953800]
项目资助者	National Natural Science Foundation of China (NSFC) ; 973 project from Ministry of Science and Technology in China
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000464298500012
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/9585
专题	中科院古脊椎所（2000年以后）
通讯作者	Zheng, Yan
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Yan,Yang, Shouye,Deng, Chenglong. Provenance and climate changes inferred from magnetic properties of the sediments from the lower Yangtze River (China) during the last 130 years[J]. JOURNAL OF ASIAN EARTH SCIENCES,2019,175:128-137.
APA	Zheng, Yan,Yang, Shouye,&Deng, Chenglong.(2019).Provenance and climate changes inferred from magnetic properties of the sediments from the lower Yangtze River (China) during the last 130 years.JOURNAL OF ASIAN EARTH SCIENCES,175,128-137.
MLA	Zheng, Yan,et al."Provenance and climate changes inferred from magnetic properties of the sediments from the lower Yangtze River (China) during the last 130 years".JOURNAL OF ASIAN EARTH SCIENCES 175(2019):128-137.