1. College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China
2. Key Laboratory of Karst Geological Resources and Environment, Ministry of Education, Guizhou University, Guiyang 550025, China
3. College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
4. Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guizhou University, Guiyang 550025, China