干旱区生态环境知识资源中心(Arid): Characterization of recharge processes and groundwater flow paths using isotopes in the arid Santanghu basin, Northwest China

Arid

DOI	10.1007/s10040-020-02119-9
	Characterization of recharge processes and groundwater flow paths using isotopes in the arid Santanghu basin, Northwest China
	Wang, Ping 1,2; Zhang, Feng'; e(1); Chen, Zongyu 1
通讯作者	Zhang, Feng&#39 ; e
来源期刊	HYDROGEOLOGY JOURNAL
ISSN	1431-2174
EISSN	1435-0157
出版年	2020
卷号	28 期号:3 页码:1037-1051
英文摘要	Isotopes and hydrochemistry were used to characterize the recharge and flow of groundwater in the arid Santanghu basin in Northwest China. The results of isotopic measurement and hydrochemical facies indicate that the predominant recharge mechanism is via rivers and streams. Modern recharge only occurs in the piedmont area of Moqinwula Mountains by ephemeral rivers, and the main recharge source is precipitation in the mountain areas at an elevation of about 2,200 m above sea level. Two recharge mechanisms were identified by stable isotope methods: the ephemeral stream recharge in the piedmont with the occurrence of evaporation during recharge, and subsurface inflow recharge from the mountain regions. Diffuse recharge derived from precipitation in the basin can be ignored because of the scarcity of precipitation and intense evaporation. Groundwater in the Paleogene and Neogene confined aquifers could represent recharge during cooler climatic conditions, rather than latitude or altitude effects, signified by tritium-free samples and significant depletion of heavy stable isotopes throughout the study area. Groundwater age data suggest that central faults are controlling the flow paths of the regional groundwater flow system. Groundwater moves from the piedmont plain to the basin lowland area through lateral flow, and changes flow direction to the spring zone of Hanshuiquan Oasis because of the barrier of the central faults. A conceptual model was defined, for better understanding of the groundwater recharge and flow systems. The major findings of this study have significant implications for groundwater protection and management in arid basins.
英文关键词	Arid regions Environmental tracers Groundwater recharge Conceptual model China
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000516156400001
WOS关键词	SUSTAINABILITY ; HYDROCHEMISTRY ; EVOLUTION ; AQUIFER
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314682
作者单位	1.Chinese Acad Geol Sci, Key Lab Groundwater Sci & Engn, Minist Nat Resources, Inst Hydrogeol & Environm Geol, Zhonghua Bei Dajie 268, Shijiazhuang 050061, Hebei, Peoples R China; 2.China Univ Geosci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ping,Zhang, Feng',e,et al. Characterization of recharge processes and groundwater flow paths using isotopes in the arid Santanghu basin, Northwest China[J],2020,28(3):1037-1051.
APA	Wang, Ping,Zhang, Feng',e,&Chen, Zongyu.(2020).Characterization of recharge processes and groundwater flow paths using isotopes in the arid Santanghu basin, Northwest China.HYDROGEOLOGY JOURNAL,28(3),1037-1051.
MLA	Wang, Ping,et al."Characterization of recharge processes and groundwater flow paths using isotopes in the arid Santanghu basin, Northwest China".HYDROGEOLOGY JOURNAL 28.3(2020):1037-1051.