干旱区生态环境知识资源中心(Arid): Spatial variability of the physicochemical characteristics of surface sediments in the Three Rivers and One Dune Region in the Kuye River Basin, Mu Us Sandy Land, China

Arid

DOI	10.1016/j.catena.2021.105943
	Spatial variability of the physicochemical characteristics of surface sediments in the Three Rivers and One Dune Region in the Kuye River Basin, Mu Us Sandy Land, China
	Li, Xiaomei; Liu, Xiaokang; Yan, Ping
通讯作者	Liu, XK
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2022
卷号	210
英文摘要	Eolian-fluvial interactions are a common geomorphic phenomenon and Earth surface process in arid regions. We selected the Three Rivers and One Dune region, in the Kuye River Basin, in the northeastern Mu Us Sandy Land in Northern China, for a study of eolian-fluvial interactions, based on a geomorphological survey and analysis of the grain size and chemical element contents of surface sediments. The results showed that the interactions of wind and water flow enhanced have caused the mixing of the surface sediments, which is reflected by the spatial heterogeneity of their physicochemical properties, which are different from those of the local parent rock and local sandy environments. In detail, the variations of the chemical weathering-related indicators, including the CIA, CIW, CPA, Na/K and Rb/Sr, along four transects all indicated that the degree of chemical weathering was generally low in the region (CIA < 50), implying that the materials are unweathered or in an incipient chemical weathering state. Combined with the grain size results, in the upper reaches (transect KYH-1) the mean grain size was coarser, the degree of sorting was lower, and there was a lower degree of chemical weathering. Transect KYH-4, located in the most southeasterly part of the study area, has the lowest mean grain size and is relatively well sorted; hence, it has undergone a greater degree of chemical weathering. Transects KYH-2, KYH-3 and KYH4 span the Three Rivers, and their sediments are relatively well mixed and heavily influenced by locallyderived materials. The differences in physicochemical properties between the transects can be attributed to the diversity of slope directions and of the angles between the wind direction and the river flow. Overall, our results, combined with regional comparisons, indicate that the sand sources of the dunes in the study area are mainly locally derived.
英文关键词	Physicochemical characteristics Surface sediments Kuye River Basin
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000788531100004
WOS关键词	YELLOW-RIVER ; CLIMATE-CHANGE ; DESERT ; PROVENANCE ; EXAMPLES ; DEPOSITS ; SYSTEMS
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392067
推荐引用方式 GB/T 7714	Li, Xiaomei,Liu, Xiaokang,Yan, Ping. Spatial variability of the physicochemical characteristics of surface sediments in the Three Rivers and One Dune Region in the Kuye River Basin, Mu Us Sandy Land, China[J],2022,210.
APA	Li, Xiaomei,Liu, Xiaokang,&Yan, Ping.(2022).Spatial variability of the physicochemical characteristics of surface sediments in the Three Rivers and One Dune Region in the Kuye River Basin, Mu Us Sandy Land, China.CATENA,210.
MLA	Li, Xiaomei,et al."Spatial variability of the physicochemical characteristics of surface sediments in the Three Rivers and One Dune Region in the Kuye River Basin, Mu Us Sandy Land, China".CATENA 210(2022).