Nalenggele River is an inland river located in the arid, fragile ecological environment area in Northwestern China. Groundwater discharge to the river can significantly impact the ecologic environment in the Nalenggele River basin, but few hydrogeological studies have been conducted in the inland arid basin. In this paper, two sections were chosen to analyze the groundwater discharge in the downstream of Nalenggele River. Section I–I′ is located in the west of the downstream of this river, while section II–II′ is in the east. Two methods were used to calculate the discharge in section I–I′: Darcy's law and Modflow simulation. In these two methods, the vertical hydraulic conductivity of the stream sediment is a key parameter, which was determined by a falling-head permeameter test in the river. The results show that the groundwater discharges by the above two methods are very close to the results of a previous study by the 222Rn mass balance method. This is the first attempt to use a field test method to obtain the vertical hydraulic conductivity and the hydraulic gradient, and to illustrate the groundwater discharge in the downstream of Nalenggele River in Northwestern China by classic methods.
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Research Article|
September 23 2016
Groundwater discharge downstream of an arid inland river in Northwestern China
Bo Kang;
Bo Kang
1Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China and College of Environment and Resources, Institute of Water Resources and Environment, Jilin University, Changchun 130021, China
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Weihong Dong;
1Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China and College of Environment and Resources, Institute of Water Resources and Environment, Jilin University, Changchun 130021, China
E-mail: dongweihong@jlu.edu.cn
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Wei Xu;
Wei Xu
1Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China and College of Environment and Resources, Institute of Water Resources and Environment, Jilin University, Changchun 130021, China
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Fengtian Yang
Fengtian Yang
1Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China and College of Environment and Resources, Institute of Water Resources and Environment, Jilin University, Changchun 130021, China
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Water Supply (2017) 17 (2): 519–525.
Article history
Received:
November 19 2015
Accepted:
September 08 2016
Citation
Bo Kang, Weihong Dong, Wei Xu, Fengtian Yang; Groundwater discharge downstream of an arid inland river in Northwestern China. Water Supply 1 March 2017; 17 (2): 519–525. doi: https://doi.org/10.2166/ws.2016.156
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