Subglacial Meltwater Recharge in the Dongkemadi River Basin, Yangtze River Source Region

He, Qiule1,2; Kuang, Xingxing2,3; Chen, Jiachang2; Jiao, Jiu Jimmy4,5; Liang, Sihai6; Zheng, Chunmiao2

2022-03-01

10.1111/gwat.13189

Groundwater   影响因子和分区

0017-467X

1745-6584

Glaciers on the Tibetan Plateau play an important role in the local hydrological cycle. However, there are only few studies on groundwater in the alpine basins in the Tibetan Plateau which considered the effects of glaciers. Glaciers are extensively distributed in the Dongkemadi River Basin, which is a representative alpine basin in the Yangtze River source region. This study focuses on building a numerical groundwater flow model with glaciations using HydroGeoSphere (HGS) to simulate subglacial meltwater recharge to groundwater in the Dongkemadi River Basin in response to future climate changes. Effects of hydraulic conductivity, precipitation, and temperature on subglacial meltwater recharge to groundwater were discussed. Glacier changes in the future 50 years were predicted under different climate change scenarios. Results show that: (1) the average thickness of the glacier will change significantly; (2) the simulated rate of annual mean subglacial meltwater recharge to groundwater is 4.58 mm, which accounts for 6.33% of total groundwater recharge; and (3) hydraulic conductivity has the largest influence on subglacial meltwater recharge to groundwater, followed by temperature and precipitation. Results of this study are also important to sustainable water resource usage in the Yangtze River source region.

SCI ; EI

英语

通讯

National Natural Science Foundation of China[91747204,92047202] ; Research Grants Council of the Hong Kong Special Administrative Region, China[17304815] ; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, High-level Special Funding of the Southern University of Science and Technology["G02296302","G02296402"]

Geology ; Water Resources

Geosciences, Multidisciplinary ; Water Resources

WOS:000765820200001

WILEY

20221011769935

Climate change ; Climate models ; Glacial geology ; Groundwater flow ; Hydraulic conductivity ; Mercury compounds ; Recharging (underground waters) ; Rivers ; Water conservation

Meteorology:443 ; Atmospheric Properties:443.1 ; Water Resources:444 ; Surface Water:444.1 ; Groundwater:444.2 ; Geology:481.1 ; Fluid Flow, General:631.1 ; Hydraulics:632.1 ; Mathematics:921

Web of Science

1.Harbin Inst Technol, Sch Environm, Harbin 150090, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen Municipal Engn Lab Environm IoT Technol, Shenzhen 518055, Peoples R China
4.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China
5.Univ Hong Kong, Shenzhen Res Inst SRI, Shenzhen, Peoples R China
6.China Univ Geosci, Sch Water Resources & Environm, Beijing, Peoples R China

He, Qiule,Kuang, Xingxing,Chen, Jiachang,et al. Subglacial Meltwater Recharge in the Dongkemadi River Basin, Yangtze River Source Region[J]. Groundwater,2022,60:434-450.

He, Qiule,Kuang, Xingxing,Chen, Jiachang,Jiao, Jiu Jimmy,Liang, Sihai,&Zheng, Chunmiao.(2022).Subglacial Meltwater Recharge in the Dongkemadi River Basin, Yangtze River Source Region.Groundwater,60,434-450.

He, Qiule,et al."Subglacial Meltwater Recharge in the Dongkemadi River Basin, Yangtze River Source Region".Groundwater 60(2022):434-450.