- 2021/10/01 - 現在 Keio Gijuku 理事
- 2021/10 - 現在 Keio University Faculty of Environment and Information Studies Dean
- 2020/04 - 現在 The Association of Rural Planning, Japan President
- 2019/04/28 - 現在 Association of Rural Planning, Japan President
- 2017/04 - 現在 Research Institute for Humanity and Nature
- 2012/04 - 現在 Professor, Faculty of Environment and Information Studies, Keio University
- 2021/06 - Center for Environmental Information Science
- 2018/05 - 2020/09 Science Council of Japan
- 2019/04 - 2019/09 Kwansei Gakuin University Part time lecturer
- 2018/04/01 - 2018/09/30 Kyoto University Graduate School of Global Environmental Studies Part-time lecturer
- 2018/04 - 2018/09 Graduate School, Kyoto University Part time lecturer
- 2017/09/01 - 2018/03/30 The University of Tokyo College of Arts and Sciences Part-time lecturer
- 2017/09 - 2018/03 The University of Tokyo Part time lecturer
- 2011/10 - 2017/10 Science Council of Japan
- 2015/10 - 2017/09 Keio Research Institute at SFC Deputy Director
- 2012/04 - 2015/03/31 総合地球環境学研究所共同研究員
- 2012/09 - 2013/08 Visiting Researcher, Vienna University of Technology
- 2012/12 - 2013/03 Visiting professor, Ca'Foscari University of Venice
- 2010/04 - 2013/03 Lecturer, Rikkyo University
- 2011/04 - 2012/03/31 慶應義塾大学生命科学研究所兼担教員
- 2010/04 - 2012/03 Lecturer, Graduate School of Design, Sapporo City University
- 2008/04 - 2012/03 Associate professor, Faculty of Environmental and Information Studies, Keio University
- 2003/11 - 2009/08 Director, the Geoecological Conservation Network
- 2004/04 - 2008/03 Associate professor, Institute of Natural and Environmental Sciences, University of Hyogo
- 2002/04 - 2008/03 Associate professor, Awaji Landscape Planning and Horticulture Academy
- 2007/05 - Visiting researcher, Centre for Forest, Landscape and Planning, University of Copenhagen
- 2004/04 - 2005/02 Visiting researcher, school of Planning and Landscape, the University of Manchester
- 2004/01 - 2004/03 Guest lecturer, Graduate School of Art and Design, Tsukuba University
- 2002/04 - 2004/03 Associate professor, Institute of Natural and Environmental Sciences, Himeji Institute of Technology
- 1999/04 - 2002/03 Lecturer, Awaji Landscape Planning and Horticulture Academy
- 1999/04 - 2002/03 Lecturer, Institute of Natural and Environmental Sciences, Himeji Institute of Technology
- 1996/10 - 1998/09 Visiting researcher, Chair of Landscape Ecology, Munich Technical University
- 1994/04 - 1997/03 Research Fellow, the Japan Society for the Promotion of Science