1. Lecturer, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, School of Environmental Science and Engineering, Chang’an Univ., Xi’an 710054, China (corresponding author).
2. Professor, State Key Laboratory of Coastal and Offshore Engineering, Dalian Univ. of Technology, Dalian 116024, China.
3. Professor, Dept. of Physics, Univ. of Helsinki, Helsinki FI-00014, Finland.
4. Lecturer, School of Water Conservancy and Civil Engineering, Northeast Agricultural Univ., Harbin 150030, China.
5. Lecturer, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, School of Environmental Science and Engineering, Chang’an Univ., Xi’an 710054, China.