干旱区生态环境知识资源中心(Arid): Particle size characteristics of surface sediments and their environmental significance: a comparative study of deserts in arid western Inner Mongolia, China

Arid

DOI	10.1007/s12665-020-08931-6
	Particle size characteristics of surface sediments and their environmental significance: a comparative study of deserts in arid western Inner Mongolia, China
	Zhang, Yalu 1,2; Chun, Xi 1,3; Zhou, Haijun 1,2; Zhang, Yangyang 1,2; Huang, Shixin 1,2; Wang, Xiaozhen 1,2
通讯作者	Chun, Xi
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2020
卷号	79 期号:10
英文摘要	Based on the analysis of particle size mechanical composition and parameter distribution of surface sediments in the Hobq Desert (HD), the Ulan Buh Desert (UBD) and the northern part of the Mu Us Desert (MUD) in western Inner Mongolia, and combining the sedimentary environment discrimination method and the particle size lognormal fitting method, this research compares and explores the particle size characteristics and the significance of sensitive components in the sedimentary environment to the provenance in the three deserts. The results are shown as follows: (1) Sediment samples in the HD are dominated by fine sand (48.9%), in the UBD by fine sand and medium sand (41.10% and 42.90%, respectively) and in the MUD by medium sand (41.62%). (2) sigma 1in the HD and the UBD are well sorted and symmetric, but are averagely sorted and show highly positive skewness in the MUD. (3) The sediment samples in the HD and the UBD are mainly aeolian sediments, with lacustrine sediments being secondary. By contrast, the sediment samples in MUD is largely made up of lacustrine deposits. (4) By fitting the particle size frequency curves of all samples, five components, namely C1, C2, C3, C4 and C5 ranging from fineness to coarseness, are obtained. It is also indicated that the sediments in the study area do not undergo a wide range of mixing, but mainly experience in situ sedimentation. The most of these sediments may belong to lakeshore deposits that have been modified by wind for a long time, and are accompanied by long-distance westerly dust, weathered debris from bedrock, and active paleosand dunes of riverbed sediments.
英文关键词	Inner mongolia Desert Particle size Sedimentary environment Sand source
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000533897800002
WOS关键词	MU US DESERT ; BADAIN JARAN DESERT ; GRAIN-SIZE ; YELLOW-RIVER ; TIBETAN PLATEAU ; LEVEL STATUS ; DUNE SANDS ; DRILL CORE ; LAKE ; MONSOON
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319067
作者单位	1.Inner Mongolia Repair Engn Lab Wetland Ecoenviron, Hohhot 010022, Peoples R China; 2.Inner Mongolia Normal Univ, Coll Geog Sci, Hohhot 010022, Peoples R China; 3.Lab Mongolian Plateau Environm & Global Change, Hohhot 010022, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yalu,Chun, Xi,Zhou, Haijun,et al. Particle size characteristics of surface sediments and their environmental significance: a comparative study of deserts in arid western Inner Mongolia, China[J],2020,79(10).
APA	Zhang, Yalu,Chun, Xi,Zhou, Haijun,Zhang, Yangyang,Huang, Shixin,&Wang, Xiaozhen.(2020).Particle size characteristics of surface sediments and their environmental significance: a comparative study of deserts in arid western Inner Mongolia, China.ENVIRONMENTAL EARTH SCIENCES,79(10).
MLA	Zhang, Yalu,et al."Particle size characteristics of surface sediments and their environmental significance: a comparative study of deserts in arid western Inner Mongolia, China".ENVIRONMENTAL EARTH SCIENCES 79.10(2020).