[M-IS11] Biogeochemistry

Fri. Jun 4, 2021 9:00 AM - 10:30 AM Ch.16 (Zoom Room 16)

convener:Keisuke Koba(Center for Ecological Research, Kyoto University), Hideaki Shibata(Field Science Center fot Northern Biosphere, Hokkaido University), Naohiko Ohkouchi(Japan Agency for Marine-Earth Science and Technology), Youhei Yamashita(Faculty of Environmental Earth Science, Hokkaido University), Chairperson:Keisuke Koba(Center for Ecological Research, Kyoto University), Yoshiyuki Inagaki(Forestry and Forest Products Research Institute)

Biogeochemistry is an interdisciplinary study field including ecology, geochemistry, oceanography, limnology, hydrology, soil science, and environmental sciences. Respective researches have tended to be conducted separately so far. This session aims to provide a common platform for biogeochemists of different disciplines, which facilitates the interactive discussion and information exchanges for further development of biogeochemical studies

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9:00 AM - 9:15 AM

[MIS11-01] Source of dissolved black carbon in streams

*Youhei Yamashita^1,2, Daiki Kojima², Natsumi Yoshida², Hideaki Shibata^3,2 (1.Faculty of Environmental Earth Science, Hokkaido University, 2.Graduate School of Environmental Science, Hokkaido University, 3.Field Science Center for Northern Biosphere, Hokkaido University)

9:15 AM - 9:30 AM

[MIS11-02] Biodegradation kinetics of different molecular-size classes of freshwater dissolved organic matter

*Yasuhiko T. Yamaguchi¹, Koichi Shimotori², Akio Imai², Yusuke Okazaki³, Tomoyuki Ohara¹, Miho Nakamura¹, Shoichi Hichiri¹, Takahiro Okamoto¹, Kazuhide Hayakawa¹ (1.Lake Biwa Environmental Research Institute, 2.NIES Lake Biwa Branch Office, National Institute for Environmental Studies, 3.Institute for Chemical Research, Kyoto University)

9:30 AM - 9:45 AM

[MIS11-03] Responses of phytoplankton biomass to river-borne nutrient flux in the coastal waters of Suruga Bay

*Tomoya Iwata¹, Yuri Amada¹, Akifumi Kitabatake¹, Nao Yonehara¹, Mizuho Shikata¹, Hiroshi Kobayashi¹, Mitsuhiro Toratani³, Akira Tsukagoshi², Kenji Kato² (1.Faculty of Life and Environmental Sciences, University of Yamanashi, 2.Faculty of Science, Shizuoka University, 3.School of Engineering, Tokai University)

9:45 AM - 10:00 AM

[MIS11-04] Investigation on the sources of arsenic and the formation process of arsenic-rich peat in groundwater level in Asia

*Thinh Van NGUYEN¹, Kuwahara Yoshihiro¹, Masaru Matsumoto², Thanh Dinh Xuan³, Nguyen Dinh Nguyen³, Myo Zaw⁴ (1.Department of Environmental changes, Faculty of Social and Cultural Studies, Kyushu University, Fukuoka, 819-0395, Japan, 2.Institute of Tropical Agriculture, Kyushu University, Fukuoka, 819-0395, Japan, 3.Faculty of Geology, Hanoi University of Science, Vietnam National University, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam., 4.Graduate School of Integrated Sciences for Global Society, Kyushu University, Fukuoka, 819-0395, Japan)

10:00 AM - 10:15 AM

[MIS11-05] Why is Rawanbuki large?

*Masaaki Chiwa¹, Yasuhiro Utsumi¹, Naoaki Tashiro¹, Yuko Yasuda^1,4, Ken'ichi Shinoduka^1,3, Ru Yang¹, Nao Nagano¹, Shusuke Murata¹, Takuma Nakamura¹, Kohei Yamauchi¹, Yuji Kabemura¹, Tatsuro Ando², Hiroshi Sawamura² (1.Kyushu University Forest, 2.Ashoro Museum of Paleontology, 3.Fukuoka Institute of Technology, 4.Forest Research and Management Organization)

10:15 AM - 10:30 AM

[MIS11-06] Comparison of litter decomposition rates and dissolved organic carbon fluxes in soils across global climatic gradient

*Kazumichi Fujii¹, Chie Hayakawa², Yoshiyuki Inagaki¹, Shinya Funakawa³, Kosaki Kosaki⁴ (1.Forestry and Forest Products Research Institute, 2.Utsunomiya University, 3.Kyoto University, 4.Aichi University)

Session information