| Project/Area Number |
24380176
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Boundary agriculture
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
YOKOYAMA Tadashi 東京農工大学, (連合)農学研究科(研究院), 教授 (70313286)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Souzho 東京農工大学, 大学院農学研究院, 教授 (30137898)
WATANABE Izumi 東京農工大学, 大学院農学研究院, 准教授 (30302912)
KIMURA SonokoDrothea 東京農工大学, 大学院農学研究院, 准教授 (60397015)
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| Co-Investigator(Renkei-kenkyūsha) |
OHTSU Naoko 東京農工大学, 大学院農学研究院, 講師 (40513437)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
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| Keywords | 放射性Cs / 除染 / 植物－微生物相互作用 / バイオ肥料 / カリウム溶解菌 / 野生動物 / 世代汚染 / 土壌での放射性Cs存在部位 / 逐次抽出法 / 福島県二本松市 / 水田土壌 / 森林土壌 / 放射性Csのバイオレメディエーション / 放射性セシウム / 植物-微生物相互作用 / 放射性セシウム循環 / 粘土鉱物 / 放射性セシウム固定 / 放射性セシウムの可動化 / 根圏 / 環境修復 / 放射性Cs137 / 生物相関 |
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| Outline of Final Research Achievements |
In order to clarify actual states of environmental contamination by radioactive Cs and to evaluate a novel method of radioactive decontamination in farm lands using plant-microbe interactions, we carried out several field surveys at Nihonmatsu city in Fukushima prefecture. Major clay mineral distributing in Nihonmatsu was Vermiculite and we found organic acid induces to release Cs from the clay by X-ray diffraction. Regarding paddy ecosystem, tadpoles had higher 137Cs activity concentration. In several tributaries of Abukuma River, 137Cs activity concentrations of sediments had a seasonal change pattern. Furthermore, wild ducks had concentrated 137Cs into their testes and ovaries. Several varieties of Brassica species with PGPR showed increase of radioactive Cs uptake. Though Brassica species could not uptake 137Cs fixed into clay minerals, Brassica species applied with K-solubilizing bacteria producing organic acids promoted those uptake.
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