*Chengcheng Gong^1,2, Peter G. Cook³, René Therrien⁴, Philip Brunner² (1.Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang’an University, Ministry of Education, P. R. China, 2.Center for Hydrogeology and Geothermics (CHYN), University of Neuchâtel, Switzerland, 3.National Centre for Groundwater Research and Training & College of Science and Engineering, Flinders University, Adelaide, SA, Australia, 4.Department of Geology and Geological Engineering, Université Laval, Québec, QC, Canada)

*Zaiyong Zhang^1,2, Wenke Wang^1,2, Bin Ran^1,2, Chengcheng Gong^1,2, Da Xu^1,2 (1.Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang'an University, Ministry of Education, China, 2.School of Water and Environment, Chang'an University, China)