1. School of Water and Environment, Chang’an University, Xi’an, People’s Republic of China
2. Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of the Ministry of Education, Chang’an University, Xian, People’s Republic of China
3. Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, Chang’an University, Xian, People’s Republic of China