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Report No.

Estimation of the amount of soil erosion using suspended sediment load; An Example in the Horonobe area, northern Hokkaido

Seno, Shoji; Niizato, Tadafumi; Kurikami, Hiroshi; Yasue, Kenichi; Yabuuchi, Satoshi; Hara, Minoru; Kunimaru, Takanori; Nakayama, Masashi; Funaki, Hironori; Yamaguchi, Takehiro

We should estimate ten-thousand-year stability of geological environment to meet the geological disposal of high level radioactive waste. Especially groundwater flow plays an important role because it might cause migration of nuclides. Since long term transitions of geology and topography may influence hydrogeological conditions such as hydraulic gradient and hydraulic conductivities, estimations of vertical displacement rate and erosion rate are also important. This report discusses the method to estimate an amount of erosion in the future based on suspended sediment concentration in rivers as an example in Horonobe area, northern part of Hokkaido.



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