1. State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang China
2. College of Resources and Environment Southwest University Chongqing China
3. Center for Advances in Water and Air Quality Lamar University Beaumont MI USA
4. Department of Civil and Environmental Engineering Lamar University Beaumont MI USA
5. Ailaoshan Station for Subtropical Forest Ecosystem Studies Chinese Academy of Sciences Jingdong China