Hydrological Cycle and Lake Water Source Indicated by Microrelief-Evaporite-Vegetation-Runoff Assemblage of Badain Jaran Desert

doi:10.3390/w11071350

IEECAS OpenIR > 生态环境研究室

	Hydrological Cycle and Lake Water Source Indicated by Microrelief-Evaporite-Vegetation-Runoff Assemblage of Badain Jaran Desert
	Ma, Yandong 1,2,3; Zhao, Jingbo 2,4; Shao, Tianjie 4; Jia, Zhifeng 1,3; Zhao, Zhiqiang 1,3; Guan, Zilong 1,3
通讯作者	Zhao, Jingbo(zhaojb@snnu.edu.cn) ; Jia, Zhifeng(409538088@chd.edu.cn)
	2019-07-01
发表期刊	WATER
ISSN	2073-4441
卷号	11 期号:7 页码:13
摘要	The hydrologic process of the sandy desert remains a focus in research in arid areas. Three major natural phenomena that can indicate the hydrological cycle in the extremely dry Badain Jaran Desert were found, namely the assemblage of megadune microrelief and evaporite, megadune vegetation and microrelief, as well as lakeside runoff and vegetation. The microrelief sand layer water, evaporite minerals, and lakeside hydrogeological features were analyzed by the drying and weighing method, environmental scanning electron microscopy with energy spectrum analysis functions, and a hydrogeological borehole survey. The water content of the microrelief 0-0.5 m sand layer is between 4.7% and 9.3%. The evaporite minerals are mainly composed of calcite (CaCO3) and gypsum (CaSO4). The shallow groundwater system in the off-shore area of lakes consists of an aeolian sand layer, a peat layer, and a lacustrine sedimentary layer, and the phreatic water with a thickness of 20 cm to 40 cm is reserved in the bottom of aeolian sand layer with a peat layer as a waterproof baseboard. Based on these results, the above three natural phenomena can be explained as follows: (1) The assemblage of megadune microrelief and evaporite was caused by the outcropping of water from megadune vadose zone in the form of preferential flow for a long time. Its leading edge differential wind erosion and calcium cemented fine sand layer indicate that water from the megadune vadose zone moves to and recharges the microrelief water along the micro-scale fine sand layer, during which, it features a multiple layer as it is controlled by a vertical dune bedding structure. (2) The small-scale assemblage of megadune vegetation and microrelief indicates that the water from the megadune vadose zone moved laterally and led to vegetation development, and the assemblage of microrelief and vegetation at a slope scale indicates that the vadose zone water presented multilayer enrichment and runoff producing due, to a great extent, to the bedding structures of different spacial locations. (3) The assemblage of lakeside runoff and vegetation is related to the phreatic water recharged by precipitation surrounding the lake, which indicates that the megadune water recharged by precipitation moved to the bottom of the megadune and constituted supply to the lake water. The three assemblages fully demonstrate that the megadune water recharged by precipitation in this desert could recharge the groundwater water and even lake water in the form of preferential flow due to the control of the bedding structure of different scales within the megadune. The results of lake water balance and the occurrence conditions of phreatic water surrounding the lake imply that the precipitation in this desert plays an important role in sustaining the lake. This study provides reliable evidence for revealing the essence of the hydrological cycle and the source of lake water in the Badain Jaran Desert, which indicates that although precipitation is small, it cannot be ignored in arid sandy desert areas.
关键词	vadose zone water preferential flow vegetation pattern dune bedding structure phreatic water
DOI	10.3390/w11071350
关键词[WOS]	SOIL-WATER ; SEDIMENTARY STRUCTURE ; GROUNDWATER RECHARGE ; MEGA-DUNE ; HINTERLAND ; PATTERNS ; FLOW
收录类别	SCI ; SCI
语种	英语
资助项目	China Postdoctoral Science Foundation[2018M633438] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1713] ; 111 Program-Base construction of Innovation and Introducing Talents of Hydrology Ecology and Water Safety Discipline in Arid and Semi-Arid Regions[B08039]
WOS研究方向	Water Resources
项目资助者	China Postdoctoral Science Foundation ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences ; 111 Program-Base construction of Innovation and Introducing Talents of Hydrology Ecology and Water Safety Discipline in Arid and Semi-Arid Regions
WOS类目	Water Resources
WOS记录号	WOS:000480632300035
出版者	MDPI
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/13630
专题	生态环境研究室
通讯作者	Zhao, Jingbo; Jia, Zhifeng
作者单位	1.Changan Univ, Sch Environm Sci & Engn, Xian 710054, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China 3.Changan Univ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710054, Shaanxi, Peoples R China 4.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710062, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Ma, Yandong,Zhao, Jingbo,Shao, Tianjie,et al. Hydrological Cycle and Lake Water Source Indicated by Microrelief-Evaporite-Vegetation-Runoff Assemblage of Badain Jaran Desert[J]. WATER,2019,11(7):13.
APA	Ma, Yandong,Zhao, Jingbo,Shao, Tianjie,Jia, Zhifeng,Zhao, Zhiqiang,&Guan, Zilong.(2019).Hydrological Cycle and Lake Water Source Indicated by Microrelief-Evaporite-Vegetation-Runoff Assemblage of Badain Jaran Desert.WATER,11(7),13.
MLA	Ma, Yandong,et al."Hydrological Cycle and Lake Water Source Indicated by Microrelief-Evaporite-Vegetation-Runoff Assemblage of Badain Jaran Desert".WATER 11.7(2019):13.