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The relationship between environmental factors and magnetic susceptibility in the Ili loess, Tianshan Mountains, Central Asia

文献类型：期刊论文

作者Zeng, Mengxiu2; Song, Yougui1,5; Li, Yue1; Fu, Chaofeng4; Qiang, Xiaoke1; Chang, Hong1; Zhu, Lidong2; Zhang, Zhiping3; Cheng, Liangqing1
刊名GEOLOGICAL JOURNAL
出版日期2019-07-01
卷号54期号:4页码:1889-1901
ISSN号0072-1050
关键词Arid Central Asia controlling factors elevation Ili loess magnetic susceptibility vegetation
DOI10.1002/gj.3182
通讯作者Zeng, Mengxiu(mengxiuzeng@zjnu.edu.cn) ; Song, Yougui(ygsong@loess.llqg.ac.cn)
英文摘要The mechanisms of the magnetic susceptibility (MS) enhancement of loess from Arid Central Asia (ACA) have received much attention recently. Consensus varies about factors controlling the magnetic properties as well as the environmental implications, and much effort needs to be gone into how surface processes affect the MS. In this study, we collected 214 topsoil, near-surface loess, and fluvial sediment samples covering different elevations, climatic conditions, and vegetation from the Ili Valley in eastern ACA and analysed their magnetic properties and composition to investigate the factors influencing MS. Redundancy analysis (RDA) was employed to assess the relationship between environmental indicators and environmental factors. Our results show that (a) the concentration of pedogenic magnetic particles in the Ili loess and topsoils is limited. chi(lf) is higher in loess but lower in paleosol, mainly attributable to changes in wind intensity; (b) the mean chi(fd), chi(fd)%, and chi(lf) values of topsoil are lower in the desert steppe and forest-meadow zones, but highest in the montane steppe zone, and are not positively associated with vegetation coverage and the intensity of pedogenic processes; and (c) elevation exerts the most important impact on topsoil chi(fd) and chi(fd)%, while chi(lf) is influenced more by temperature than precipitation. (d) The magnetic enhancement could be mainly attributed to wind velocity; we also should consider elevation and other factors such as local material, climatic conditions, and distance to the dust source when interpreting the paleoclimatic or paleoenvironmental significance of magnetic parameters.
WOS关键词LATE QUATERNARY LOESS ; ARID CENTRAL-ASIA ; CHINESE LOESS ; PALEOSOL SEQUENCES ; GRAIN-SIZE ; QUARTZ OSL ; BASIN ; CLIMATE ; XINJIANG ; RECORDS
资助项目National Key Research and Development Program of China[2016YFA0601902] ; National Natural Science Foundation of China[41572162] ; Natural Science Foundation of Zhejiang Province, China[LQ18D020002] ; International Partnership Program of Chinese Academy of Sciences (CAS)[132B61KYS20160002] ; Special Exchange Program for Russia from CAS ; Special Exchange Program for Belarus from CAS ; Special Exchange Program for Ukraine from CAS
WOS研究方向Geology
语种英语
出版者WILEY
WOS记录号WOS:000477016000005
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province, China ; International Partnership Program of Chinese Academy of Sciences (CAS) ; Special Exchange Program for Russia from CAS ; Special Exchange Program for Belarus from CAS ; Special Exchange Program for Ukraine from CAS
源URL[http://ir.ieecas.cn/handle/361006/13383]  
专题地球环境研究所_古环境研究室
通讯作者Zeng, Mengxiu; Song, Yougui
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China
2.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Zhejiang, Peoples R China
3.Environm Monitoring Stn Ili Kazakh Autonomous Pre, Yining, Peoples R China
4.Changan Univ, Key Lab Western Mineral Resources & Geol Engn, Minist Educ China, Xian, Shaanxi, Peoples R China
5.CAS Res Ctr Ecol & Environm Cent Asia, Urumqi, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Mengxiu,Song, Yougui,Li, Yue,et al. The relationship between environmental factors and magnetic susceptibility in the Ili loess, Tianshan Mountains, Central Asia[J]. GEOLOGICAL JOURNAL,2019,54(4):1889-1901.
APA Zeng, Mengxiu.,Song, Yougui.,Li, Yue.,Fu, Chaofeng.,Qiang, Xiaoke.,...&Cheng, Liangqing.(2019).The relationship between environmental factors and magnetic susceptibility in the Ili loess, Tianshan Mountains, Central Asia.GEOLOGICAL JOURNAL,54(4),1889-1901.
MLA Zeng, Mengxiu,et al."The relationship between environmental factors and magnetic susceptibility in the Ili loess, Tianshan Mountains, Central Asia".GEOLOGICAL JOURNAL 54.4(2019):1889-1901.

入库方式： OAI收割

来源：地球环境研究所

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