干旱区生态环境知识资源中心(Arid): Evaluating heterogeneous lacustrine groundwater discharge of Hulun Lake using radium isotopes in Inner Mongolia, China

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DOI	10.1016/j.ejrh.2023.101650
	Evaluating heterogeneous lacustrine groundwater discharge of Hulun Lake using radium isotopes in Inner Mongolia, China
	Gu, Xiaomin; Xue, Mengyong; Ye, Chenghui; Jiao, Yanwen; Han, Yujie; Wang, Wenlin; Zhang, Xiaofei; Frape, Shaun K.; Liu, Bo
通讯作者	Liu, B
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2024
卷号	51
英文摘要	Study region: Hulun Lake Basin, Northern China Study focus: Understanding lacustrine groundwater discharge (LGD) is important for elucidating the hydrological cycle and sustainable use of water resources. Hulun Lake is the largest fresh water lake and has prominent ecological function in North China. However, the effect of groundwater discharge on the water balance and spatial distribution of LGD under different aquifers have not yet been evaluated in detail. Herein, radium (223Ra, 224Ra, and 228Ra) and stable isotopes (delta D, delta 18O) were used to identify the LGD locations and quantify the spatial LGD flux into the lake. New hydrological insights for the region: The Ra isotope activities in groundwater from the fissured bedrock in the western part of the Lake are depleted relative to those from the east, underlain by the Quaternary unconsolidated sediments aquifer overlying granitic rocks. The spatial distribution of LGD under heterogeneous aquifers was revealed and groundwater discharge from fractured bedrock aquifer is the predominant source of the lake. The LGD flux is estimated to range from (1.07 +/- 1.36)x 107 to (6.54 +/- 1.89)x 107 m3/d, which exceeds that in the Quaternary aquifer by one order of magnitude due to the high permeability enlarged via tectonic faults and fractures. These findings promote scientific understanding of water balance in Hulun Lake and are instructional for LGD studies of freshwater lakes with complex water systems in cold and arid regions.
英文关键词	Lacustrine groundwater discharge Heterogeneous aquifer Radium isotopes Hulun Lake
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001154373000001
WOS关键词	WATER ; RADON ; RATES ; AGES ; FLOW ; BAY
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/2XILL650/404617
推荐引用方式 GB/T 7714	Gu, Xiaomin,Xue, Mengyong,Ye, Chenghui,et al. Evaluating heterogeneous lacustrine groundwater discharge of Hulun Lake using radium isotopes in Inner Mongolia, China[J],2024,51.
APA	Gu, Xiaomin.,Xue, Mengyong.,Ye, Chenghui.,Jiao, Yanwen.,Han, Yujie.,...&Liu, Bo.(2024).Evaluating heterogeneous lacustrine groundwater discharge of Hulun Lake using radium isotopes in Inner Mongolia, China.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,51.
MLA	Gu, Xiaomin,et al."Evaluating heterogeneous lacustrine groundwater discharge of Hulun Lake using radium isotopes in Inner Mongolia, China".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 51(2024).