1. CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China
2. University of Chinese Academy of Sciences, Beijing 100049, PR China
3. School of Environmental Science and Engineering, Jiangnan University, Wuxi 225127, PR China
4. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610299, PR China
5. Norwegian Geotechnical Institute (NGI), P.O. Box
3930, Ullevål Stadion, Oslo N-0806, Norway
6. Department of Chemistry, Norwegian University of Science and Technology (NTNU), Trondheim NO-7491, Norway