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Distribution coefficients of selenium in Japanese agricultural soils and the factors affecting selenium sorption behavior
https://repo.qst.go.jp/records/61382
https://repo.qst.go.jp/records/61382f43d8132-8b5e-4818-817d-6517a00eb775
Item type | 会議発表用資料 / Presentation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2006-06-05 | |||||
タイトル | ||||||
タイトル | Distribution coefficients of selenium in Japanese agricultural soils and the factors affecting selenium sorption behavior | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
資源タイプ | conference object | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Nakamaru, Yasuo
× Nakamaru, Yasuo× 中丸 康夫 |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The selenium (Se) sorption behavior in Japanese soils was studied by radiotracer experiments. Soil/soil solution distribution coefficients (Kds) were obtained for 110 agricultural soil samples as an index of Se sorption level using 75Se as a tracer. The Kd values ranged from 4 to 1616 L kg-1, and their geometric mean was 219 L kg-1. Among the soil types, volcanic ash soils had higher Kd values. It is known that volcanic ash soils contain large amounts of active-aluminum (Al) and active-iron (Fe), and the active-Al and -Fe were considered to be the major adsorbents of Se. The primary adsorption mechanism of Se onto soil active-Al and -Fe has been regarded as ligand-exchange, which is the same adsorption mechanism for phosphate. Therefore, the effect of phosphate input on Se sorption behavior was also verified. | |||||
会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Mini-Symposium on Radioecology | |||||
発表年月日 | ||||||
日付 | 2005-04-11 | |||||
日付タイプ | Issued |