1. State Key Laboratory of Environmental Geochemistry Institute of Geochemistry, Chinese Academy of Sciences Guiyang PR China
2. Puding Karst Ecosystem Observation and Research Station Chinese Academy of Sciences Puding PR China
3. School of Geography and Environmental Sciences Guizhou Normal University Guiyang PR China
4. Center for Excellence in Quaternary Science and Global Change Chinese Academy of Sciences Xi'an PR China
5. Guizhou Provincial Key Laboratory of Geographic State Monitoring of Watershed Guizhou Education University Guiyang PR China