|Researchers at RIHN|
|NAKANO Takanori||RIHN / Waseda University|
|MCGREEVY, Steven R.||RIHN|
|MORI Seiichi||Gifu Kyoritsu University|
|YOKOO Yoriko||Doshisha University|
|YAMADA Yoshihiro||Kagawa University|
|SAKAI Motoya||Ono City Office|
|TOKUMASU Minoru||Saijo City Office|
|OOMORI Noboru||Oshino Village Office|
|OHKUSHI Ken'ichi||Kobe University|
|MITSUHASHI Hiromune||University of Hyogo / Museum of Nature and Human Activities, Hyogo|
|YOKOYAMA Tadashi||Hyogo Prefectural Ako School for Students with Special Needs|
This project investigates environmental traceability as a key concept for solution of environmental problems. Stable isotope ratios of elements, together with concentrations of elements, can trace the flow of matter and chemicals through the environment, better describe ecosystem structure and conditions, and appraise the chemical profiles of food products. Spatio-temporal variation of multiple isotope ratios can be used to study Earth systems operating at local to global scales. This information can serve as an important decision-making tool for local people considering water, food and environmental security, all of which are fundamental for the sustainability of human society.
This study seeks to establish methodologies for the use of environmental traceability in environmental studies. A combination of quantitative and qualitative tools, including “Multi-Isoscapes”, (the use of multiple elements and isotope ratios together with GIS-based mapping techniques), social surveys, and workshops are deployed to investigate the role of environmental traceability in addressing environmental issues. We hypothesize that the role and perception of traceability methods in transdisciplinary processes will differ among stakeholders and that the co-production of “Multi-Isoscapes” can act as an effective bridging tool for understanding and explaining variation in local environments. The ultimate objective of this research is to demonstrate the effectiveness of multi-isotopic information in solving global environmental issues.
Project research tests: (I) the effectiveness of the environmental traceability concept in environmental studies by comparing case studies in which isotopic methods were initiated by local government, citizen groups, and researchers; (II) the extent to which these different stakeholders hold different views of the concepts of food traceability and environmental traceability and the effectiveness of these concepts in communicating links between food production and consumption. Field research is taking place in Japan at sites in Ono City, Fukui; Otsuchi Town, Iwate; Saijo City, Ehime; Oshino Village, Yamanashi; the Chikusa river watershed, Hyogo; Lake Biwa and surrounding watershed in Shiga; as well as in the Laguna de Bay and surrounding watershed in the Philippines.
Photo 1 Hongan-Shozu pond in Ono City, Fukui, recharged by ground water
Photo 2 The multi-stakeholder workshop on the Silang-Santa Rosa Watershed in the Philippines, where we presented the results and used a questionnaire to study the effectiveness of our environmental traceability methodology