1. State Key Laboratory of Environmental Geochemistry, Institute of GeochemistryChinese Academy of Sciences Guiyang China
2. College of Earth and Planetary SciencesUniversity of Chinese Academy of Sciences Beijing China
3. Puding Karst Ecosystem Observation and Research StationChinese Academy of Sciences Anshun China
4. School of Geography and Environmental SciencesGuizhou Normal University Guiyang China
5. College of Resource and EnvironmentGuizhou University Guiyang China