Pengfei Liu, male, Doctor of Science, Associate Professor, Doctoral Supervisor, Visiting Scholar of Kent State University, USA. He is mainly engaged in the research of ecosystem services and spatial optimization of the national territory, atmospheric pollution and its ecological effects, and land use/cover change. In recent years, he has presided over or participated in more than 20 national and local research projects, such as the National Natural Science Foundation of China, the Scholarship Council of China Study Abroad Program for Young Backbone Teachers, the Natural Science Foundation of Henan Province, the Basic and Frontier Technology Research Program of Henan Province and the Bidding Project of the Henan Provincial Government. He is actively engaged in social services, and has presided over or participated in more than 10 projects such as Kaifeng City Land Use Master Plan (2006-2020), Yongcheng City Land Space Planning (2020-2035) and Linzhou City Ecological Construction Planning, etc. He has published more than 30 papers in journals such as "Environmental Pollution", "Catena", "Chemosphere", "Geography", "Environmental Science", etc., and has been authorized to issue five invention patents.https://yrcsd.henu.edu.cn/info/1093/4514.htm