Jie LI^1,2, Wenke Wang^1,2, Ying Li^3,4, Tian-Chyi J Yeh^5,6, Xiaoqin Huang⁴, Guizhang Zhao⁷, Dawei Cheng^1,2 and Yufang Sun⁴, (1)Chang'an University, School of Environmental Science and Engineering, Xi'an, China, (2)Chang’an University, Ministry of Education, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Xi'an, China, (3)Geological Bureau of Ningxia Hui Autonomous Region, Yinchuan, China, (4)Institute of Hydrogeology and Environmental Geology of Ningxia, Yinchuan, China, (5)Univ Arizona, Tucson, AZ, United States, (6)University of Arizona, Department of Hydrology and Atmospheric Science, Tucson, AZ, United States, (7)North China University of Water Resources and Electric Power, Zhengzhou, China