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Journal Articles

Land use types control solid wash-off rate and entrainment coefficient of Fukushima-derived $$^{137}$$Cs, and their time dependence

Wakiyama, Yoshifumi*; Onda, Yuichi*; Yoshimura, Kazuya; Igarashi, Yasunori*; Kato, Hiroaki*

Journal of Environmental Radioactivity, 210, p.105990_1 - 105990_12, 2019/12

 Times Cited Count:3 Percentile:42.3(Environmental Sciences)

Journal Articles

Effect of topsoil removal and selective countermeasures on radiocesium accumulation in rice plants in Fukushima paddy field

Yang, B.*; Onda, Yuichi*; Omori, Yoshihiro*; Sekimoto, Hitoshi*; Fujiwara, Toru*; Wakiyama, Yoshifumi*; Yoshimura, Kazuya; Takahashi, Junko*; Sun, X.*

Science of the Total Environment, 603-604, p.49 - 56, 2017/12

 Times Cited Count:1 Percentile:92.1(Environmental Sciences)

Journal Articles

Temporal changes of radiocesium in irrigated paddy fields and its accumulation in rice plants in Fukushima

Yang, B.*; Onda, Yuichi*; Wakiyama, Yoshifumi*; Yoshimura, Kazuya; Sekimoto, Hitoshi*; Ha, Y.*

Environmental Pollution, 208(Part B), p.562 - 570, 2016/01

 Times Cited Count:9 Percentile:51.16(Environmental Sciences)

Journal Articles

Behavior of accidentally released radiocesium in soil-water environment; Looking at Fukushima from a Chernobyl perspective

Konoplev, A.*; Golosov, V.*; Laptev, G.*; Namba, Kenji*; Onda, Yuichi*; Takase, Tsugiko*; Wakiyama, Yoshifumi*; Yoshimura, Kazuya

Journal of Environmental Radioactivity, 151(Part 3), p.568 - 578, 2016/01

 Times Cited Count:42 Percentile:6.53(Environmental Sciences)

Oral presentation

Radiocesium wash-off associated with soil erosion from various land uses after the Fukushima Dai-ichi NPP accident

Wakiyama, Yoshifumi*; Onda, Yuichi*; Yoshimura, Kazuya; Kato, Hiroaki*

no journal, , 

Oral presentation

Long-term trends of plot-scale Cs-137 wash-off on various land uses in Fukushima

Wakiyama, Yoshifumi*; Onda, Yuichi*; Yoshimura, Kazuya; Nakamura, Noriko*; Manome, Ryo*

no journal, , 

Oral presentation

Slope-scale Cs-137 wash-off processes estimated with erosion plot observations and laser-scanning

Wakiyama, Yoshifumi*; Manome, Ryo*; Onda, Yuichi*; Yoshimura, Kazuya

no journal, , 

no abstracts in English

Oral presentation

Seasonality of Cs-137 concentration of sediments eroded from a slope in Fukushima

Wakiyama, Yoshifumi*; Manome, Ryo*; Onda, Yuichi*; Yoshimura, Kazuya

no journal, , 

Oral presentation

Land use controls fate and transport of radionuclides in Fukushima in the terrestial environment

Onda, Yuichi*; Taniguchi, Keisuke*; Wakiyama, Yoshifumi*; Yoshimura, Kazuya; Smith, H.*; Blake, W.*; Iwagami, Sho*; Kato, Hiroaki*

no journal, , 

Oral presentation

Cesium-137 wash-off associated with soil erosion on various land uses in Fukushima

Yoshimura, Kazuya; Wakiyama, Yoshifumi*; Onda, Yuichi*; Takase, Tsugiko*

no journal, , 

Oral presentation

Distributed modeling of radionuclide washing out from the watersheds in solute and with suspended sediments; Case studies Abukuma River, Fukushima Prefecture and Pripyat-Dnieper river system, Ukraine

Zheleznyak, M.*; Pylypenko, O.*; Kivva, S.*; Sakuma, Kazuyuki; Igarashi, Yasunori*; Wakiyama, Yoshifumi*; Konoplev, A.*; Namba, Kenji*

no journal, , 

We developed physically-based watershed models based on the distributed hydrological-sediment transport model. The model implementation for the experimental plots in Fukushima prefecture was conducted for particulate $$^{137}$$Cs transport. Also, we developed model that combines the watershed empirical models based on the washing-out coefficient approach and GIS data. The model was tested on the basis of the measurements of $$^{137}$$Cs concentration in Abukuma river and validated also on the basis of the data sets of radionuclide transport in the Pripyat and Dnieper rivers.

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