[M-IS14] Biogeochemistry

Thu. May 30, 2024 10:45 AM - 12:00 PM 302 (International Conference Hall, Makuhari Messe)

convener:Keitaro Fukushima(Faculty of Food and Agricultural Sciences, Fukushima University), Keisuke Koba(Center for Ecological Research, Kyoto University), Youhei Yamashita(Faculty of Environmental Earth Science, Hokkaido University), Naohiko Ohkouchi(Japan Agency for Marine-Earth Science and Technology), Chairperson:Keisuke Koba(Center for Ecological Research, Kyoto University), Keitaro Fukushima(Faculty of Food and Agricultural Sciences, Fukushima University)

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 the further development of biogeochemical studies.

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10:45 AM - 11:00 AM

[MIS14-07] Effect of substrate concentration on microbial production of recalcitrant dissolved organic matter: Evaluation by molecular size analysis

*Yasuhiko T. Yamaguchi¹, Koichi Shimotori², Yusuke Okazaki³, Shang Shen^2,4, Kenji Tsuchiya⁵, Akiko S. Goto^1,6, Morimaru Kida⁷ (1.Lake Biwa Environmental Research Institute, 2.NIES Lake Biwa Branch Office, National Institute for Environmental Studies, 3.Institute for Chemical Research, Kyoto University, 4.College of Science and Engineering, Ritsumeikan University, 5.Regional Environment Conservation Division, National Institute for Environmental Studies, 6.The Center for Ecological Research, Kyoto University, 7.Graduate School of Agricultural Science, Kobe University)

11:00 AM - 11:15 AM

[MIS14-08] Carbon isotopic compositions of 16 proteinogenic amino acids and their enantiomers for biogeochemical studies

*Naohiko Ohkouchi¹, Yunchen Sun^1,2, Nanako O Ogawa¹, Yoshinori Takano¹, Naoto F Ishikawa¹, Yuta Isaji¹, Thomas M Blattmann^1,3, Junichiro Kuroda^1,2, Hodaka Kawahata^2,4 (1.Japan Agency for Marine-Earth Science and Technology, 2.Atmosphere and Ocean Research Institute, University of Tokyo, 3.ETH Zurich, 4.Waseda University)

11:15 AM - 11:30 AM

[MIS14-09] Carbon buried underground by volcanic ash: Estimating the amount of buried carbon by Tarumae-c and Tarumae-d volcanic ash

*Satoru Hobara¹, Tatsumi Kase¹, Shizuku Okada¹, Tomoko Hatanaka¹, Tatsuro Nakaji², Takuji Sawamoto¹, Mihoko Moriizumi³, Shingo Matsumoto⁴, Khew Ee Hung¹, Nobuhiko Yoshimura¹ (1.Rakuno Gakuen University, 2.Hokkaido University, 3.Ryukoku University, 4.Shimane University)

11:30 AM - 11:45 AM

[MIS14-10] Recent changes in the nitrogen cycle of Lake Inawashiro, Japan

*Fumiko Nakagawa¹, Keiichi Yamaguchi¹, Yoshimi Matsumoto¹, Takashi Sanbuichi¹, Masanori Itoh¹, Urumu Tsunogai¹ (1.Graduate School of Environmental Studies, Nagoya University)

11:45 AM - 12:00 PM

[MIS14-11] Dissolved and colloidal organic carbon and trace metals in thermokarst lakes of the Western Siberia Lowland.

*Dahedrey Payandi-Rolland^1,2, Liudmila S. Shirokova^2,3, Pascale Bénézeth², Rinat M. Manasypov⁴, Oleg S. Pokrovsky^2,4 (1.Department of Geography, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan, 2.Géosciences Environnement Toulouse, GET – CNRS – CNES – IRD – OMP – Université de Toulouse, France, 14 Avenue Edouard Belin, 31400 Toulouse, France, 3.N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch or RAS, Arkhangelsk, Nab Severnoi Dviny 23, Russia, 4.BIO-GEO-CLIM Laboratory, Tomsk State University, 35 Lenina Pr., Tomsk, Russia)

Session information