1. Department of Environmental Science, Chongqing University, Chongqing 400044, China
2. School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
3. Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
4. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China