1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry Chinese Academy of Sciences Guiyang PR China
2. University of Chinese Academy of Sciences Beijing PR China
3. School of Chemistry and Materials Science Guizhou Normal University Guiyang PR China
4. College of Resource & Environment Henan Agricultural University Zhengzhou PR China
5. Key Laboratory of Karst Georesources and Environment, Ministry of Education, College of Resources and Environmental Engineering Guizhou University Guiyang PR China
6. Guizhou Province Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment Guizhou Normal University Guiyang PR China