1. School of Environmental Science and Engineering, Sun Yat-sen University, Waihuan East Road, No. 132, Guangzhou 510006, P. R. China
2. Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, P. R. China
3. Sustainable Agricultural Water Systems (SAWS) Unit, USDA, ARS, UC Davis, 239 Hopkins Road, Davis, California 95616, United States
4. Agrosphere Institute (IBG-3), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
5. Department of Environmental Sciences, University of California, Riverside, Riverside, California 92521, United States
6. Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, P. R. China
7. Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, P. R. China