1. Ph.D. Candidate, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Univ., Changchun 130021, China; Ph.D. Candidate, College of Environment and Resources, Jilin Univ., Changchun 130021, China.
2. Professor, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Univ., Changchun 130021, China; Professor, College of Environment and Resources, Jilin Univ., Changchun 130021, China (corresponding author).