Dr. Zengwei Yuan is presently working as Professor at School of the Environment, Nanjing University. He has completed Ph.D. in Environmental Planning and Management from same University, and Postdoctoral fellowship in Department of Environmental Science and Engineering, Tsinghua University. Dr. Zengwei started his career as Visiting Scholar at Yale University, Associate Professor and Research Scholar at Nanjing University, Visiting Scholar at Stanford University, California, and Visiting Professor, GIS Center at the National University of Ireland, Galway. He successfully completed 13 research projects as Principal Investigator. He has 45 publications in journals contributed as author/co-author. His main area of research interest focuses on Environment System Analysis, Life Cycle Phosphorous, Flow Management, Watershed Environmental Management, Cleaner Production, and Circular Economy.