[1] Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China
[2] Univ Texas Austin, Bur Econ Geol, Jackson Sch Geosci, Austin, TX 78713 USA
[3] Univ Tennessee, Dept Biosyst Engn & Soil Sci, Knoxville, TN 37996 USA
[4] Aalto Univ, POB 15200, FIN-00076 Aalto, Finland