1. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Univ., Chang Chun 130021, China.
2. Professor, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Univ., Chang Chun 130021, China.
3. Master’s Student, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Univ., Chang Chun 130021, China.
4. Professor, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Univ., Chang Chun 130021, China (corresponding author).