1. Joensuu Research Unit; Finnish Forest Research Institute; Joensuu Finland
2. School of Human Science and Environment; University of Hyogo; Himeji Japan
3. Faculty of Life and Environmental Science; Shimane University; Matsue Japan
4. International Research Center for River Basin Environment; University of Yamanashi; Kofu Japan
5. Graduate School of Environmental and Life Science; Okayama University; Okayama Japan