[M-IS14] Biogeochemistry

Thu. May 26, 2022 1:45 PM - 3:15 PM 202 (International Conference Hall, Makuhari Messe)

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

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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1:45 PM - 2:00 PM

[MIS14-01] No effect of elevated CO₂ on fertilizer-derived nitrogen use efficiency of paddy rice: possible degradation of soil fertility on a long-term basis

*Kentaro Hayashi^1,2, Takeshi Tokida¹, Miwa Arai³, Hidemistu Sakai¹, Hirofumi Nakamura⁴, Toshihiro Hasegawa¹ (1.Institute for Agro-Environmental Sciences, NARO, 2.Research Institute for Humanity and Nature, 3.Japan International Research Center for Agricultural Sciences, 4.Taiyo Keiki Co. Ltd.)

2:00 PM - 2:15 PM

[MIS14-02] Fate of Dissolved Black Carbon in the Deep Ocean

*Youhei Yamashita^1,2, Motohiro Nakane², Yutaro Mori², Jun Nishioka^3,2, Hiroshi Ogawa⁴ (1.Faculty of Environmental Earth Science, Hokkaido University, 2.Graduate School of Environmental Science, Hokkaido University, 3.Institute of Low Temperature Science, Hokkaido University, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)

2:15 PM - 2:30 PM

[MIS14-03] Age related changes in water and nitrogen use strategies of crop trees and understory vegetation in a hinoki cypress plantation forest in Kochi city

*Yoshiyuki Inagaki¹, Kazuki Miyamoto¹, Atsushi Sakai¹ (1.Forestry and Forest Products Research Institute)

2:30 PM - 2:45 PM

[MIS14-04] Effect of the landslide occurrence on the soil carbon/nitrogen loss in the Southern Japanese Alps.

*Catur Putra Satgada¹, Fumitoshi Imaizumi¹, Tomohiro Egusa¹ (1.Shizuoka University)

2:45 PM - 3:00 PM

[MIS14-05] Contribution of iron in clay minerals to redox cycle in paddy soils; enhancement of nitrogen-fixing iron-reducing bacteria in paddy soils

*Yuki Shimizu¹, Yoshio Takahashi¹, Yoko Masuda², Sakura Sato², Michinari Sunamura^1,3, Toshihiro Kogure¹, Keishi Senoo^2,3 (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Graduate School of Agricultural and Life Sciences / Faculty of Agriculture, The University of Tokyo, 3.Collaborative Research Institute for Innovative Microbiology, The University of Tokyo)

3:00 PM - 3:15 PM

[MIS14-06] Stable isotopic evidence for the excess leaching of unprocessed atmospheric nitrate from a forested catchment in Fukuoka, Japan

*Weitian Ding¹, Urumu Tsunogai¹, Fumiko Nakagawa¹, Kenichi Shinozuka³, Kasahara Tamao², Masaaki Chiwa² (1.Graduate School of Environmental Studies, Nagoya University, 2.Kyushu University Forest, Kyushu University, 3.Environmental Science Institute, Fukuoka Institute of Technology)

Session information

[M-IS14] Biogeochemistry

[MIS14-01] No effect of elevated CO₂ on fertilizer-derived nitrogen use efficiency of paddy rice: possible degradation of soil fertility on a long-term basis

[MIS14-02] Fate of Dissolved Black Carbon in the Deep Ocean

[MIS14-03] Age related changes in water and nitrogen use strategies of crop trees and understory vegetation in a hinoki cypress plantation forest in Kochi city

[MIS14-04] Effect of the landslide occurrence on the soil carbon/nitrogen loss in the Southern Japanese Alps.

[MIS14-05] Contribution of iron in clay minerals to redox cycle in paddy soils; enhancement of nitrogen-fixing iron-reducing bacteria in paddy soils

[MIS14-06] Stable isotopic evidence for the excess leaching of unprocessed atmospheric nitrate from a forested catchment in Fukuoka, Japan

Authentication

Session information

[M-IS14] Biogeochemistry

[MIS14-01] No effect of elevated CO2 on fertilizer-derived nitrogen use efficiency of paddy rice: possible degradation of soil fertility on a long-term basis

[MIS14-02] Fate of Dissolved Black Carbon in the Deep Ocean

[MIS14-03] Age related changes in water and nitrogen use strategies of crop trees and understory vegetation in a hinoki cypress plantation forest in Kochi city

[MIS14-04] Effect of the landslide occurrence on the soil carbon/nitrogen loss in the Southern Japanese Alps.

[MIS14-05] Contribution of iron in clay minerals to redox cycle in paddy soils; enhancement of nitrogen-fixing iron-reducing bacteria in paddy soils

[MIS14-06] Stable isotopic evidence for the excess leaching of unprocessed atmospheric nitrate from a forested catchment in Fukuoka, Japan

Authentication

[MIS14-01] No effect of elevated CO₂ on fertilizer-derived nitrogen use efficiency of paddy rice: possible degradation of soil fertility on a long-term basis