Arid
DOI10.1155/2018/9260604
Numerical Investigation into the Evolution of Groundwater Flow and Solute Transport in the Eastern Qaidam Basin since the Last Glacial Period
Hao, Qichen1; Lu, Chuan1; Zhu, Yuchen1; Xiao, Yong2; Gu, Xiaomin3
通讯作者Zhu, Yuchen
来源期刊GEOFLUIDS
ISSN1468-8115
EISSN1468-8123
出版年2018
英文摘要

A complete understanding of groundwater circulation as well as the transport and distribution of solutes in arid-semiarid basin regions is a prerequisite for the safe use of groundwater resources. The distributions of the groundwater flow systema and solutes are affected by the basin morphology, lithology, and climate variations; therefore, they can change over geologic time. In this study, we performed a case study of the Qaidam Basin in the northeastern Tibetan Plateau, in which we utilized reactive solute transport simulations to build a numerical model in TOUGHREACT for a typical section of the eastern Qaidam Basin since the last glacial period. The results show that the groundwater in the eastern Qaidam Basin developed into a three-level groundwater flow system and that the seepage velocity of the local water flow system is significantly higher than that of the intermediate and regional water flow systems. Although groundwater in the discharge region has been continuously concentrated and enriched since the last glacial period, the distributions of the groundwater flow system and solutes have been greatly affected by climate variations. During warm periods, the centres of groundwater discharge and solute concentration shifted to areas with more groundwater recharge; in contrast, both centres shifted to the central basin during drought periods. The groundwater in the basin mainly contains Na+ and Cl- ions, which vary significantly from the recharge region to the discharge region. Evaporation of groundwater results in increases in the concentrations of most of the components except HCO3-. The groundwater in the discharge region is currently in the stage of carbonate precipitation and is far from gypsum and halite precipitation.


类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000435839700001
WOS关键词SALT LAKE ; EVAPORATION ; WATERS ; CHINA
WOS类目Geochemistry & Geophysics ; Geology
WOS研究方向Geochemistry & Geophysics ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/209613
作者单位1.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China;
2.Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu 610031, Sichuan, Peoples R China;
3.China Univ Geosci, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714
Hao, Qichen,Lu, Chuan,Zhu, Yuchen,et al. Numerical Investigation into the Evolution of Groundwater Flow and Solute Transport in the Eastern Qaidam Basin since the Last Glacial Period[J],2018.
APA Hao, Qichen,Lu, Chuan,Zhu, Yuchen,Xiao, Yong,&Gu, Xiaomin.(2018).Numerical Investigation into the Evolution of Groundwater Flow and Solute Transport in the Eastern Qaidam Basin since the Last Glacial Period.GEOFLUIDS.
MLA Hao, Qichen,et al."Numerical Investigation into the Evolution of Groundwater Flow and Solute Transport in the Eastern Qaidam Basin since the Last Glacial Period".GEOFLUIDS (2018).
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