| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2019-12-20 |
| タイトル |
|
|
タイトル |
Influence of water management and fertilizer application on 137Cs and 133Cs uptake in paddy rice fields |
| タイトル |
|
|
タイトル |
Influence of water management and fertilizer application on 137Cs and 133Cs uptake in paddy rice fields |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Cesium |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Potassium fertilizer |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Flooding |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Rice |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Water management |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Cesium |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Potassium fertilizer |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Flooding |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Rice |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Water management |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
若林, 正吉
伊藤, 純雄
木方, 展治
松波, 寿弥
八戸, 真弓
濱松, 潮香
高橋, 茂
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Cesium-137 derived from the Tokyo Electric Power Company's Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident contaminated large areas of agricultural land in Eastern Japan. Previous studies before the accident have indicated that flooding enhances radiocesium uptake in rice fields. We investigated the influence of water management in combination with fertilizers on 137Cs concentrations in rice plants at two fields in southern Ibaraki Prefecture. Stable Cs (133Cs) in the plants was also determined as an analogue for predicting 137Cs behavior after long-term aging of soil 137Cs. The experimental periods comprised 3 y starting from 2012 in one field, and 2 y from 2013 in another field. These fields were divided into three water management sections: a long-flooding section without midsummer drainage, and medial-flooding, and short-flooding sections with one- or two-week midsummer drainage and earlier end of flooding than the long-flooding section. Six or four types of fertilizer subsections (most differing only in potassium application) were nested in each water management section. Generally, the long-flooding treatment led to higher 137Cs and 133Cs concentrations in both straw and brown rice than medial- and short-flooding treatments, although there were some notable exceptions in the first experimental year at each site. Effects of differing potassium fertilizer treatments were cumulative; the effects on 137Cs and 133Cs concentrations in rice plants were not obvious in 2012 and 2013, but in 2014, these concentrations were highest where potassium fertilizer had been absent and lowest where basal dressings of K had been tripled. The relationship between 137Cs and 133Cs in rice plants was not correlative in the first experimental year at each site, but correlation became evident in the subsequent year(s). This study demonstrates a novel finding that omitting midsummer drainage and/or delaying drainage during the grain-filling period enhances uptake of both 137Cs and 133Cs. |
| 書誌情報 |
Journal of Environmental Radioactivity
en : Journal of Environmental Radioactivity
巻 157,
p. 102-112,
発行日 2016-06
|
| 出版者 |
|
|
出版者 |
Elsevier |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0265-931X |
| DOI |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.jenvrad.2016.03.010 |
| 権利 |
|
|
権利情報 |
The Author(s) |
| 権利 |
|
|
権利情報 |
Published by Elsevier |
| 情報源 |
|
|
|
関連名称 |
SC30201706210012 |
| 情報源 |
|
|
|
関連名称 |
author manuscript |
| 情報源 |
|
|
|
関連名称 |
This is not the published version. Please cite only the published version. |
| 情報源 |
|
|
|
関連名称 |
この論文は出版社版ではありません。引用の際には出版社版をご利用ください。 |
| 関連サイト |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1016/j.jenvrad.2016.03.010 |
|
|
関連名称 |
Journal of Environmental Radioactivity |
| 著者版フラグ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
SC30201706210012_postprint (1.3 MB)
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