Japan Geoscience Union Meeting 2014

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Oral

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

[A-HW28_30PM2] Water and material transport and cycle in watersheds: from headwater to coastal area

Wed. Apr 30, 2014 4:15 PM - 5:45 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:Shin-ichi Onodera(Graduate School of Integrated and Arts Sciences, Hiroshima University)

5:15 PM - 5:30 PM

[AHW28-P09_PG] Rock magnetic profiles of sediment cores in Hachirogata : effect of a land reclamation

3-min talk in an oral session

*Yuki OTA1, Takaharu SATO1, Shin-ichi ONODERA1, Guangzhe JIN1, Mitsuyo SAITO2, Atsushi HAYAKAWA3 (1.Graduate School of Integrated and Arts Sciences, Hiroshima University, 2.Graduate School of Environmental and Life Science, Okayama University, 3.Faculty of Bioresource Sciences, Akita Prefectural University)

Keywords:Lake Hachirogata, sediment, rock magnetism, land reclamation

We examined the influence of land reclamation on rock magnetic profiles in Lake Hachirogata. In this lake, all flowing rivers exist on an east side and a large reclamation land touch at west and north sides. Two sediment core samples were collected at the eastern central (HL-1) and northwestern bankside (HL-2) sites in this lake in September 2013, using the 1m piston core sampler (7-8 cm diameter). HL-1 was 77cm and HL-2 was 78cm.