[M-IS25] Biogeochemistry

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)

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[MIS25-01] Competition for inorganic-N between soil microbes and plants?

*Keisuke Koba¹ (1.Center for Ecological Research, Kyoto University)

[MIS25-02] Co-localization of iron and aluminum with organic matter across a range of soils: a density-based approach

*Rota Wagai¹, Masako Kajiura¹, Maki Asano² (1.NARO, Institute for Agro-Environmental Sciences, 2.Faculty of Life and Environmental Sciences, University of Tsukuba)

[MIS25-03] Associations of organic matter with mineral as affected by anecic earthworm activity: a case study from subtropical forest ecosystem

*Miwa Arai¹, Tatsuya Kawaguchi², Nobuhiro Kaneko^2,3, Rota Wagai¹ (1.Institute for Agro-Environmental Sciences, The National Agriculture and Food Research Organization, 2.Graduate School of Environment and Information Sciences, Yokohama National University, Kanagawa, Japan , 3.Faculty of Food and Agricultural Sciences, Fukushima University,)

[MIS25-04] Estimating soil acidification rates for 7300 years in Yakushima Island, Japan

*Kazumichi Fujii¹, Seiichi Kanetani¹, Kenshi Tetsuka² (1.Forestry and Forest Products Research Institute, 2.Yakushima conservation association)

[MIS25-05] Effects of climate conditions on annual stem growth in hinoki cypress forests with different stand densities

*Yoshiyuki Inagaki¹, Hidehisa Fukata², Naoshi Watanabe³ (1.Forestry and Forest Products Research Institute, 2.Kochi Prefecture, 3.Kochi Prefectural Forestry Technology Research Center)

[MIS25-06] New sources to create elevated concentration of phosphate in tidal flats: demonstration through rock weathering experiments and field observations

Nagata Kohyoh¹, *Muneoki Yoh¹ (1.Tokyo University of Agriculture and Technology)