I conducted research related to farming systems for obtaining a BSc degree in 2003 from the Royal University of Agriculture, Phnom Penh, Cambodia. In 2006, I received an MSc from the Royal Academy of Cambodia, having the same field as my BSc. I joined the Lab of Regional Planning, Graduate School of Global Environmental Studies, Kyoto University, in 2011 and then received a PhD degree in Environmental Management in 2015. Both the BSc and MSc research were conducted between 2003 and 2006 at the Cambodian Agricultural Research and Development Institute. My PhD research was conducted on the Cambodian northeastern plateau, Ratanakiri Province, where data collection pinpointed land use related to the shifting agriculture practices of the Djarai ethnic community.