干旱区生态环境知识资源中心(Arid): Hydrogeochemical and isotopic evidences of unique groundwater recharge patterns in the Mongolian Plateau

Arid

DOI	10.1002/hyp.14554
	Hydrogeochemical and isotopic evidences of unique groundwater recharge patterns in the Mongolian Plateau
	Ma, Fenyan; Chen, Jiaqi; Chen, Jiansheng; Wang, Tao
通讯作者	Chen, JQ
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
出版年	2022
卷号	36 期号:5
英文摘要	In arid and semi-arid areas, local precipitation is insufficient to fulfil the water requirements of the fragile local environment; hence, water is obtained from groundwater. The Hulun Lake Basin is located in the Mongolian Plateau, which is home to numerous lakes. In this study, we used remote sensing and isotopic tracing of naturally occurring isotopes (delta O-18, delta H-2, and Sr-87/Sr-86) to identify and quantify the various water inputs into the basin. Based on the lake water balance calculation and precipitation and river inputs, a 5.4 x 108 m(3)/year groundwater recharge rate was determined. Groundwater and river water with depleted delta O-18 and delta H-2 were identified close to the faults near Hulun Lake. The groundwater recharge into Hulun Lake is aided by the faults. The delta O-18 and delta H-2 compositions of the groundwater, rivers, and lakes were consistent and more depleted than those of precipitation in the local mountains and plains. Therefore, the rivers and lakes are assumed to be primarily recharged by groundwater. The low strontium isotopes (Sr-87/Sr-86) in the samples suggest that the water was primarily recharged by basalt groundwater, which was identified under the Cenozoic strata instead of the sandstones, granites, and tuffs, which are the primary rocks in the study area. Moreover, the faults were widely distributed in the study area, allowing for groundwater upwelling from basalts. For the areas with volcanic rocks and faults, particularly in arid and semi-arid areas, the basalt groundwater recharge through faults is critical for environmental sustainability. This research provides necessary information for future hydro-ecosystem resource management in arid and semi-arid areas.
英文关键词	basalt groundwater recharge hydrogeochemistry remote sensing
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000792867700001
WOS关键词	WATER-BALANCE ; PRECIPITATION ; RIVER ; AREA
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393047
推荐引用方式 GB/T 7714	Ma, Fenyan,Chen, Jiaqi,Chen, Jiansheng,et al. Hydrogeochemical and isotopic evidences of unique groundwater recharge patterns in the Mongolian Plateau[J],2022,36(5).
APA	Ma, Fenyan,Chen, Jiaqi,Chen, Jiansheng,&Wang, Tao.(2022).Hydrogeochemical and isotopic evidences of unique groundwater recharge patterns in the Mongolian Plateau.HYDROLOGICAL PROCESSES,36(5).
MLA	Ma, Fenyan,et al."Hydrogeochemical and isotopic evidences of unique groundwater recharge patterns in the Mongolian Plateau".HYDROLOGICAL PROCESSES 36.5(2022).