Oral

Symbol A (Atmospheric, Ocean, and Environmental Sciences) » A-HW Hydrology & Water Environment

[A-HW28_30PM1] Water and material transport and cycle in watersheds: from headwater to coastal area

Wed. Apr 30, 2014 2:15 PM - 4:00 PM 314 (3F)

Convener:*Kazuhisa Chikita(Department of Natural History Sciences, Faculty of Science, Hokkaido University), Tomohisa Irino(Faculty of Environmental Earth Science, Hokkaido University), Shin-ichi Onodera(Graduate School of Integrated and Arts Sciences, Hiroshima University), Shinji Nakaya(Department of Civil Engineering, Faculty of Engineering, Shinshu University), Masahiro Kobayashi(Forestry and Forest Products Research Institute), Mitsuyo Saito(Graduate School of Environmental and Life Science, Okayama University), Seiko Yoshikawa(Narional Institute of Agro-Environmental Sciences), Noboru Okuda(Center for Ecological Research, Kyoto University), Chair:Masahiro Kobayashi(Forestry and Forest Products Research Institute)

We focus on water and material transport and cycle in watersheds. The area includes headwater to coastal or estuarine area. We welcome these new topics in various scales and fields. For example, material transport in soil, slope and watershed scale, suspended material transport interacting with dissolved material, groundwater flow system and material transport, heterogeneity and dynamics, scale up from soil to watershed, effect of human activity and climate change for long period, N and P cycles, contaminant transport, river - groundwater interaction, new tracer methods, and sediment analysis etc.

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2:15 PM - 2:30 PM

[AHW28-15] Interaction properties between river and groundwater with assessment of oxygen isotope ratio and nutrient concentration

*Yutaka MARUYAMA¹, Shin-ichi ONODERA¹, Mitsuyo SAITO², Koichi KITAOKA³ (1.Graduate School of Integrated Arts and Sciences, Hiroshima University, 2.Graduate School of Environmental and Life Science, Okayama University, 3.Department of Applied Science, Okayama University of Science)

2:30 PM - 2:45 PM

[AHW28-16] Surface water ? groundwater interaction and its effect on nutrient transport; the example in Hachiro-gata

*Shin-ichi ONODERA¹, Mitsuyo SAITO², Atsushi HAYAKAWA³, Guangzhe JIN¹, Yutaka MARUYAMA¹ (1.Hiroshima University, 2.Okayama University, 3.Akita Prefecture University)

2:45 PM - 3:00 PM

[AHW28-17] Identification of flow system, sources and behaviors of major anion in a typical soil water-groundwater continuum hillsl

*Yingjie CAO¹, Changyuan TANG¹, Xing LI¹, Zhiwei KANG¹, Jingqiu PIAO¹ (1.Graduate School of Horticulture, Chiba University)

3:00 PM - 3:15 PM

[AHW28-18] Contrasting vertical phosphorus profiles in sediment of Hachirogata ; considering water flow effect

*Guangzhe JIN¹, Shin-ichi ONODERA¹, Yuki OTA¹, Takaharu SATOU¹, Mitsuyo SAITO², Atsushi HAYAKAWA³, Daiki ARITOMI¹ (1.Hiroshima University Graduate School of Integrated Arts and Sciences, 2.Graduate School of Environmental and Life Science, Okayama University, 3.Faculty of Bioresource Sciences, Akita Prefectural University)

3:15 PM - 3:30 PM

[AHW28-19] Effect of DO fluctuation on the manganese cycle around the sediment water interface in bottom of the Lake Biwa

*Takaako ITAI¹, Yuika HYOBU¹, Kosuke CHIKAOKA¹, Yohei MORISHITA¹, Yoshiki SHIN¹, Michio KUMAGAI², Shin-ichi NAKANO³, Shinsuke TANABE¹ (1.Center for Marine Environmental Studies (CMES), Ehime University, 2.Ritsumeikan University Research Center for Biwako Sigma, 3.Center for Ecological Research (CER), Kyoto University)

3:30 PM - 3:45 PM

[AHW28-20] Current status of the research on the phosphorus dynamics in the coastal groundwater discharge area

*Mitsuyo SAITO¹, Shin-ichi ONODERA² (1.Okayama Univ., 2.Hiroshima Univ.)

3:45 PM - 4:00 PM

[AHW28-21] Distribution and sources of uranium in Okinawan rivers, Japan

*Akihito MOCHIZUKI¹, Ko HOSODA¹, Masahito SUGIYAMA¹ (1.Graduate School of Human and Environmental Studies, Kyoto University)