干旱区生态环境知识资源中心(Arid): Formation of lake dunes in an intramontane basin: A case study from Cuona Lake, on the Qinghai-Tibetan Plateau

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DOI	10.1016/j.aeolia.2021.100715
	Formation of lake dunes in an intramontane basin: A case study from Cuona Lake, on the Qinghai-Tibetan Plateau
	Jiang, Hanlin; Sun, Xiaohong; Yao, Zhengyi; Wu, Xiaoyang; Liu, Xinyi; Li, Zhenshan
通讯作者	Li, ZS (corresponding author), Peking Univ, Coll Environm Sci & Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R China.
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2021
卷号	52
英文摘要	Although lake dunes are widespread in drylands, their formation, influenced by complex aeolian-fluvial interactions, remains unclear. This study focuses on the dunes around Cuona Lake on the Qinghai-Tibetan Plateau. By combining wind simulation and flow calculation with physical and chemical analyses of the sediments (grain size parameter statistics, elemental composition), we infer the processes of lake dune formation in this semi-arid intramontane basin. Meteorological data were used to resolve the temporal variations in wind and precipitation, and sediment transport pathways were identified from simulations based on wind and topographic data. Grain size and elemental analyses of sediment samples were used to characterize the physical and chemical composition of the Cuona Lake Basin dunes and related sediments. Our results show that dune formation in the Cuona Lake Basin occurs under the alternating control of wind and water processes. Dunes form mainly from sediment transported from the lake beach by westerly winds in the winter and spring; rivers flowing in the opposite direction (eastward) in the summer transport dune sand back to the lake beach. This process accounts for the recycling of sand in the landscape. This spatiotemporal coupling between hydrodynamic and wind transport pathways provides a continuous sediment supply for dune formation around the lake.
英文关键词	Lake dunes Dune formation Aeolian-fluvial interaction Transport pathway Sediment cycle
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703163200003
WOS关键词	SAND DUNES ; AEOLIAN DESERTIFICATION ; FLOW ACCUMULATION ; SPATIAL-ANALYSIS ; VICTORIA VALLEY ; CLIMATE-CHANGE ; TRANSPORT ; SEDIMENTS ; CATCHMENT ; DYNAMICS
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362336
作者单位	[Jiang, Hanlin; Sun, Xiaohong; Wu, Xiaoyang; Liu, Xinyi; Li, Zhenshan] Peking Univ, Coll Environm Sci & Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R China; [Yao, Zhengyi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Hanlin,Sun, Xiaohong,Yao, Zhengyi,et al. Formation of lake dunes in an intramontane basin: A case study from Cuona Lake, on the Qinghai-Tibetan Plateau[J]. 北京大学,2021,52.
APA	Jiang, Hanlin,Sun, Xiaohong,Yao, Zhengyi,Wu, Xiaoyang,Liu, Xinyi,&Li, Zhenshan.(2021).Formation of lake dunes in an intramontane basin: A case study from Cuona Lake, on the Qinghai-Tibetan Plateau.AEOLIAN RESEARCH,52.
MLA	Jiang, Hanlin,et al."Formation of lake dunes in an intramontane basin: A case study from Cuona Lake, on the Qinghai-Tibetan Plateau".AEOLIAN RESEARCH 52(2021).