Elevated rice 137Cs concentrations near the water inlet in paddy fields after the Fukushima nuclear accident

被引：0

作者：

Suzuki, Yoshimasa ^{[1
]}

Shoji, Ryosuke ^{[1
]}

Tsurumaki, Takahiro ^{[1
]}

Tamaki, Syohei ^{[1
]}

Nakashima, Kousei ^{[1
]}

Miyazu, Susumu ^{[2
]}

Yoshikawa, Natsuki ^{[2
]}

Ishii, Hideki ^{[3
]}

Nogawa, Norio ^{[4
]}

Nonaka, Masanori ^{[2
]}

Suzuki, Kazuki ^{[5
]}

Harada, Naoki ^{[2
]}

机构：

[1] Niigata Univ, Grad Sch Sci & Technol, Nishi Ku, 8050 Ikarashi 2 No Cho, Niigata 9502181, Japan

[2] Niigata Univ, Inst Sci & Technol, Nishi Ku, 8050 Ikarashi 2 No Cho, Niigata 9502181, Japan

[3] Fukushima Univ, Fac Food & Agr Sci, 1 Kanayagawa, Fukushima 9601296, Japan

[4] Univ Tokyo, Isotope Sci Ctr, Bunkyo Ku, 2-11-16 Yayoi, Tokyo 1130032, Japan

[5] Niigata Univ, Inst Res Promot, Nishi Ku, 8050 Ikarashi 2 No Cho, Niigata 9502181, Japan

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2022年 / 331卷 / 07期

基金：

日本学术振兴会;

关键词：

Cs-137; Fukushima Dai-ichi Nuclear Power Plant accident; Irrigation water; Rice; Soil; POWER-PLANT; RADIOCESIUM; SOIL; BEHAVIOR;

D O I：

10.1007/s10967-022-08350-w

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The reasons why rice Cs-137 concentrations increase near the water inlet were investigated using rectangular experimental plots settled in paddy fields. The Cs-137 concentrations in brown rice and rice straw were highest at 1 m from the inlet and decreased gradually with increasing distance, showing a negative correlation with soil exchangeable potassium content (Ex-K). The Cs-137 concentration in brown rice was negatively and positively correlated with yield and sterility rate, respectively. These results suggest that soil Ex-K reduction and rice anomalies occurred near the water inlet and could contribute to the local elevation of Cs-137 concentrations in rice.

引用

页码：3167 / 3173

页数：7

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