1. Department of Agricultural and Biological Engineering, University of Florida, Gainesville, Florida, USA
2. School of Civil Engineering, Wuhan University, Wuhan, China
3. Department of Geological Sciences, University of Florida, Gainesville, Florida, USA
4. Soils Department, Faculty of Agriculture, Mansoura University, Mansoura, Egypt
5. Korea Biochar Research Center and Department of Biological Environment, Kangwon National University, Chuncheon, Korea
6. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai, China