Uncertainty analysis on soil erosion parameters for radiocesium transport in the Abukuma River basin

Ikenoue, Tsubasa ; Shimadera, Hikari*; Kondo, Akira*

This study focused on the uncertainty of the factors of the USLE and evaluated its impacts on the environmental fate of $^{137}$ Cs simulated by a radiocesium transport model in the Abukuma River basin. In the USLE, soil loss is expressed as a product of factors representing rainfall (R factor), geology (K factor), topographic (L S factor) and land cover and soil erosion prevention act (C P factor). The simulation results showed total outflows of suspended sediment and $^{137}$ Cs were the most sensitive to C P factor among the all factors. Therefore, land cover and soil erosion prevention methods have the great impact on outflow of suspended sediment and $^{137}$ Cs.

Language	:	Japanese
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Meeting title	:	第54回日本水環境学会年会
Held date	:	2020/03
Location (city)	:	盛岡
Location (country)	:	日本
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Keywords	:	福島第一原子力発電所事故; 不確実性解析; 放射性セシウムの輸送; USLE; 土壌粒子輸送; Fukushima Daiichi Nuclear Power Station Accident; Uncertainty Analysis; Radiocesium Transport; Sediment Transport
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Cooperating Institute	:	大阪大学

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Registration No. : BB20191412
JAEA Abstracts No. :
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