Koichi. Yamamoto, Gatot Eko Susilo, Toshio Noda, Masahiko Sekine, Tsuyoshi Imai, Kazuya Otani, Yuko Yamamoto, Harukuni Tachibana and Masayuki Oishi
Proceedings of the 14th International Peat Congress
groundwater, moss, peat, water-quality, wetland
Yamamoto et al 2012: Field Measurement of the Ground Water Flow in the High Moor Peat in the Sarobetsu Mire, Hokkaido, Japan
Theme I. Inventory, stratigraphy and conservation of mires and peatlands
To clarify the vertical two-dimension groundwater flow, groundwater levels were measured from May 2008 to Oct. 2008. Direct measurement of the groundwater flow was also carried out using groundwater velocimeter. The vertical two-dimension groundwater flow was calculated from the groundwater level distributions. The groundwater in all the depth flowed horizontally from high moor to low moor depending on the ground surface gradient. Only shallow groundwater supports high moor vegetation. We concluded that to save oligotrophic groundwater in the high moor is important as well as to have frequent rainfall on the moss layer because rainfall maintain the discharge from surface moss layer.