研究者データベース
| 植松 慎一郎(ウエマツ シンイチロウ) |
| 工学研究院 応用量子科学部門 量子エネルギー工学 |
| 助教 |
Last Updated :2024/05/09
基本情報
所属
職名
学位
ホームページURL
J-Global ID
プロフィール
- 主に陸域環境中の放射性核種の動態について、福島第一原発事故後、およびチェルノブイリ原発事故後の周辺環境を対象として研究を行っています。
研究キーワード
研究分野
担当教育組織
職歴
学歴
- 2013年04月 - 2017年03月 ルーベン・カトリック大学 (KU Leuven) Faculty of Bioscience Engineering Division of Soil & Water Management
所属学協会
研究活動情報
論文
- Shinichiro Uematsu, Hildegarde Vandenhove, Lieve Sweeck, May Van Hees, Erik SmoldersPlant and Soil 428 1-2 415 - 426 2018年07月01日 [査読有り][通常論文]
Aims: This study was established to better understand the mechanisms of the variable radiocaesium bioavailability observed in flooded rice. Methods: Paddy topsoils (n = 9) with contrasting soil properties were collected from the Fukushima-accident affected area, spiked with 134Cs and cropped in the greenhouse with rice under flooded conditions. Soil solution was collected. As a reference to earlier work, we cropped the same paddy soils and additional grassland soils (n = 22 in total) with ryegrass under unsaturated conditions. Results: Rice shoot 134Cs concentrations varied 110-fold among soils and were unrelated to soil solution 134Cs concentrations. However, the rice shoot 134Cs concentrations clearly increased with the soil solution 134Cs:K concentration ratio (R2 = 0.79 P < 0.001). The same trend was true for ryegrass shoot 134Cs concentrations, which were, on average, 4.1-fold larger than those for flooded rice at an equal soil solution 134Cs:K ratio. Conclusions: Soil solution radiocaesium and K concentrations explain the radiocaesium bioavailability to flooded rice, confirming established knowledge for ryegrass. Transport modelling suggests that the overall smaller 134Cs bioavailability to flooded rice than to ryegrass in unsaturated soils is related to the smaller K uptake rate of rice, alleviating K depletion in its rhizosphere with locally higher K+, blocking the root uptake of radiocaesium. - Dynamics of radioecological parameters of Chernobyl Cooling Pond during and after the drawdown: starting and planning research within SATREPS project 2017-2021Shinichiro Uematsu, Ismail .M.M. Rahman, Aya Sakaguchi, Shinya Yamasaki, Naoaki Shibasaki, Toshihiro Wada, Kenji Nanba, Mark ZheleznyakProblems of Chernobyl Exclusion Zone 18 103 - 107 2018年 [査読無し][通常論文]
- Shinichiro Uematsu, Hildegarde Vandenhove, Lieve Sweeck, May Van Hees, Jean Wannijn, Erik SmoldersNEW PHYTOLOGIST 214 2 820 - 829 2017年04月 [査読有り][通常論文]
Flooded (paddy) rice (Oryza sativa) can take up ions from the irrigation water by foliar uptake via the exposed stem base. We hypothesised that the stem base uptake of radiocaesium (RCs) is a pathway for rice grown in RCs-contaminated environments. We developed a bi-compartmental device which discriminates the stem base from root RCs uptake from solutions, thereby using RCs isotopes (Cs-137 and Cs-134) with < 2% solution leak between the compartments. Radiocaesium uptake was linear over time (0-24 h). Radiocaesium uptake to the entire plant, expressed per dry weight of the exposed parts, was sixfold higher for the roots than for the exposed stem base. At equal RCs concentrations in both compartments, the exposed stem base and root uptake contributed almost equally to the total shoot RCs concentrations. Reducing potassium supply to the roots not only increased the root RCs uptake but also increased RCs uptake by the stem base. This study was the first to experimentally demonstrate active and internally regulated RCs uptake by the stem base of rice. Scenario calculations for the Fukushima-affected area predict that RCs in irrigation water could be an important source of RCs in rice as indirectly suggested from field data. - Shinichiro Uematsu, Hildegarde Vandenhove, Lieve Sweeck, May Van Hees, Jean Wannijn, Erik SmoldersJOURNAL OF ENVIRONMENTAL RADIOACTIVITY 153 51 - 60 2016年03月 [査読有り][通常論文]
Food chain contamination with radiocaesium (RCs) in the aftermath of the Fukushima accident calls for an analysis of the specific factors that control the RCs transfer. Here, soil-to-plant transfer factors (TF) of RCs for grass were predicted from the potassium concentration in soil solution (m(K)) and the Radio caesium Interception Potential (RIP) of the soil using existing mechanistic models. The m(K) and RIP were (a) either measured for 37 topsoils collected from the Fukushima accident affected area or (b) predicted from the soil clay content and the soil exchangeable potassium content using the models that had been calibrated for European soils. An average ammonium concentration was used throughout in the prediction. The measured RIP ranged 14-fold and measured mK varied 37-fold among the soils. The measured RIP was lower than the RIP predicted from the soil clay content likely due to the lower content of weathered micas in the clay fraction of Japanese soils. Also the measured m(K) was lower than that predicted. As a result, the predicted TFs relying on the measured RIP and m(K) were, on average, about 22 fold larger than the TFs predicted using the European calibrated models. The geometric mean of the measured TFs for grass in the affected area (N = 82) was in the middle of both. The TFs were poorly related to soil classification classes, likely because soil fertility (m(K)) was obscuring the effects of the soil classification related to the soil mineralogy (RIP). This study suggests that, on average, Japanese soils are more vulnerable than European soils at equal soil clay and exchangeable K content. The affected regions will be targeted for refined model validation. (C) 2015 Elsevier Ltd. All rights reserved. - Shinichiro Uematsu, Erik Smolders, Lieve Sweeck, Jean Wannijn, May Van Hees, Hildegarde VandenhoveSCIENCE OF THE TOTAL ENVIRONMENT 524 148 - 156 2015年08月 [査読有り][通常論文]
The high variability of the soil-to-plant transfer factor of radiocasium (RCs) compels a detailed analysis of the radiocaesium interception potential (RIP) of soil, which is one of the specific factors ruling the RCs transfer. The range of the RIP values for agricultural soils in the Fukushima accident affected area has not yet been fully surveyed. Here, the RIP and other major soil chemical properties were characterised for 51 representative topsoils collected in the vicinity of the Fukushima contaminated area The RIP ranged a factor of 50 among the soils and RIP values were lower for Andosols compared to other soils, suggesting a role of soil mineralogy. Correlation analysis revealed that the RIP was most strongly and negatively correlated to soil organic matter content and oxalate extractable aluminium The RIP correlated weakly but positively to soil clay content. The slope of the correlation between RIP and clay content showed that the RIP per unit clay was only 4.8 mmol g(-1) clay, about threefold lower than that for clays of European soils, suggesting more amorphous minerals and less micaceous minerals in the clay fraction of Japanese soils. The negative correlation between RIP and soil organic matter may indicate that organic matter can mask highly selective sorption sites to RCs. Multiple regression analysis with soil organic matter and cation exchange capacity explained the soil RIP (R-2 - 0.64), allowing us to map soil RIP based on existing soil map information. (C) 2015 Elsevier B.V. All rights reserved. - 植松 慎一郎, Jean Wannijn, May Van Hees, Lieve Sweeck, Erik Smolders, Hildegarde Vandenhove日本地球化学会年会要旨集 61 207 - 207 日本地球化学会 2014年福島県の農耕地を中心とした表層から採取した51点の土壌に対して、放射性セシウム捕捉ポテンシャル（RIP）および土壌理化学性を分析した。RIPと最も有意な相関が見られたのは、強熱減量（土壌有機物含量）および酸性シュウ酸抽出アルミニウム（共に負の相関）であった。
書籍
- (担当:分担執筆範囲:Chapter 4. Agricultural Systems)
International Atomic Energy Agency 2020年10月 (ISBN: 9789201179203) 345 41-51The publication focuses on radioecologjcal experience and data acquired and lessons learned in Japan following the nuclear accident at the Fukushima Daiichi nuclear power plant in March 2011. The publication brings together outcomes of the extensive studies, done by Japanese scientists and their colleagues from other countries, on characterization of radioecological transfer parameters in the terrestrial and aquatic environments of Japan affected by radionuclides released in the accident. The Japan specific data are systematically presented and compared to the global experience gained from the earlier nuclear accidents, military or industrial activities. Climate, landscape, agriculture and food processing practices, lifestyle and national dietary customs are shown as factors influencing transfer of radionuclides through the environment and human food chains. The publication summarizes country specific experience and puts it into existing global radioecological contexts.
講演・口頭発表等
- 溶脱による変質を考慮した汚染コンクリート廃棄物の合理的処理・処分の検討 (10) 硬化セメントペースト中の酢酸イオンの拡散に及ぼす溶脱変質の影響 (1G04) [通常講演]小池拓道, 植松慎一郎, 渡邊直子, 小崎完, 森永裕加, 湊大輔, 長岡亨日本原子力学会2023年春の年会 2023年03月 口頭発表（一般） 東京大学
- 溶脱による変質を考慮した汚染コンクリート廃棄物の合理的処理・処分の検討 (9) 異なる溶脱処理によって変質した硬化セメントペーストへのCs-137の収着挙動 (1G03) [通常講演]松本圭裕, 渡邊恭也, 植松慎一郎, 渡邊直子, 小崎完, 森永祐加, 湊大輔, 長岡亨日本原子力学会2023年春の年会 2023年03月 口頭発表（一般） 東京大学
- 溶脱による変質を考慮した汚染コンクリート廃棄物の合理的処理・処分の検討 (8) 溶脱方法が硬化セメントペースト中の微細構造に与える影響 (1G02) [通常講演]森永祐加, 湊大輔, 松本圭裕, 植松慎一郎, 長岡亨, 渡邊直子, 小崎完日本原子力学会2023年春の年会 2023年03月 口頭発表（一般） 東京大学
- 溶脱による変質を考慮した汚染コンクリート廃棄物の合理的処理・処分の検討 (7) 硬化セメントペースト中のCs-137の拡散挙動に及ぼす溶脱変質の影響 (3B07) [通常講演]植松慎一郎, 渡邊恭也, 渡邊直子, 小崎 完, 森永祐加, 湊 大輔, 長岡 亨日本原子力学会2022年秋の大会 2022年09月 口頭発表（一般） 茨城大学
- 溶脱による変質を考慮した汚染コンクリート廃棄物の合理的処理・処分の検討 (6) 硬化セメントペースト中の酢酸イオン及び炭酸イオンの拡散挙動 (3B06) [通常講演]小池拓道, 植松慎一郎, 渡邊直子, 小崎 完, 森永祐加, 湊 大輔, 長岡 亨日本原子力学会2022年秋の大会 2022年09月 口頭発表（一般） 茨城大学
- Dependence of Neutron Activation on Elemental Composition of Biological Shield Wall Concrete for the Purpose of Decommissioning (13th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, Operation and Safety) [通常講演]Nishiyama R, Tanaka K, Watanabe N, Kozaki T, Uematsu S, Yanagihara S13th International Topical Meeting on Nuclear Reactor Thermal-Hydraulics, Operation and Safety 2022年09月 口頭発表（一般） Taiwan
- Study on rational treatment/disposal of contaminated concrete waste considering leaching alteration: (2) Effect of leaching alteration on 137Cs migration in cement paste [通常講演]Uematsu S, Watanabe K, Matsumoto K, Watanabe N, Kozaki T, Morinaga Y, Minato D, Nagaoka T6th International Forum on the Decommissioning of the Fukushima Daiichi Nuclear Power Station 2022年08月 ポスター発表 Iwaki
- Study on rational treatment/disposal of contaminated concrete waste considering leaching alteration: (1) Overview [通常講演]Kozaki T, Sugiyama T, Hashimoto K, Watanabe N, Uematsu S, Kawasaki D, Yanagihara S, Minato D, Nagaoka T, Morinaga Y, Kozai N, Koma Y6th International Forum on the Decommissioning of the Fukushima Daiichi Nuclear Power Station 2022年08月 ポスター発表 Iwaki
- Diffusion processes of anions in compacted bentonite evaluated from the activation energy (Clay00433) [通常講演]Uematsu S, Goto T, Suzuki S, Nagaoka T, Watanabe N, Kozaki T8th International Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement 2022年06月 口頭発表（一般） Nancy
- 溶脱による変質を考慮した汚染コンクリート廃棄物の合理的処理・処分の検討 (3) 溶脱処理によって変質したセメントへの Cs-137の拡散挙動 [通常講演]渡邊恭也, 松本圭裕, 植松慎一郎, 渡邊直子, 小崎完, 森永祐加, 湊大輔, 長岡亨日本原子力学会2021年秋の大会 2021年09月 口頭発表（一般）
- 溶脱による変質を考慮した汚染コンクリート廃棄物の合理的処理・処分の検討 (2) 溶脱処理によって変質したセメントへの Cs-137の収着挙動 (3C02) [通常講演]松本圭裕, 渡邊恭也, 植松慎一郎, 渡邊直子, 小崎完, 森永祐加, 湊大輔, 長岡亨日本原子力学会2021年秋の大会 2021年09月
- 溶脱による変質を考慮した汚染コンクリート廃棄物の合理的処理・処分の検討 (1) 硬化セメントペースト中の放射性ヨウ素の移行挙動 (3C01) [通常講演]千賀匠, 植松慎一郎, 渡邊直子, 小崎完, 森永祐加, 湊大輔, 長岡亨日本原子力学会2021年秋の大会 2021年09月 口頭発表（一般）
- モンモリロナイト中の硫酸イオンの拡散挙動に及ぼす交換性陽イオンの影響 (2C02) [通常講演]佐藤央都, 植松慎一郎, 渡邊直子, 小崎完日本原子力学会2021年秋の大会 2021年09月 口頭発表（一般）
- PWRの解体に向けた放射性廃棄物特性の評価 (2J17) [通常講演]佐藤大晃, 千葉優作, 田中健一, 渡邊直子, 柳原敏, 小崎完, 植松慎一郎日本原子力学会2021年春の年会 2021年03月 口頭発表（一般）
- 福島第一原子力発電所におけるコンクリート廃棄物量の推定 (2D07) [通常講演]竹中瑠奈, 渡辺直子, 川崎大介, 植松慎一郎, 小崎完日本原子力学会2020年秋の大会 2020年09月 口頭発表（一般） 日本原子力学会
福島第一原子力発電所の廃炉で発生する廃棄物量は、放射性核種の炉内の輸送およびコンクリート中の移行挙動の両方の影響を受けるとされる。本研究では、その両方を考慮した廃棄物量評価を行う。 - 特性が異なる天然ベントナイト試料中の放射性核種の拡散挙動 (1D11) [通常講演]佐藤央都, 植松慎一郎, 渡邊直子, 小崎完, 長岡亨, 後藤考裕日本原子力学会2020年秋の大会 2020年09月 口頭発表（一般） 日本原子力学会
特性が異なる天然ベントナイト試料（３種）中のHTOおよび陰イオン種の拡散実験を行い、得られた見かけの拡散係数の塩濃度依存性および温度依存性から、陰イオン排斥効果を含む拡散機構について検討した。
その他活動・業績
- 日本原子力研究開発機構, 北海道大学 2023年01月 [査読無し][通常論文]
- 日本原子力研究開発機構, 北海道大学 2022年03月 [査読無し][通常論文]
- 植松 慎一郎, Hildergade Vandenhove, Lieve Sweeck, Erik Smolders Strategies and Practices in the Remediation of Radioactive Contamination in Agriculture, Report of a Technical Workshop Held in Vienna, Austria, 17–18 October 2016 89 -92 2020年 [査読無し][招待有り]
- Predicting radiocaesium sorption with soil chemical properties in Japanese soils植松慎一郎, Jean Wannijn, May Van Hees, Lieve Sweeck, Erik Smolders, Hildegarde Vandenhove Proceedings of the 3rd International Conference on Radioecology and Environmental Radioactivity (ICRER) O-060 2014年09月 [査読無し][通常論文]
受賞
- 2021年02月 日本原子力学会北海道支部 第38回研究発表会 奨励賞
溶脱により変質した硬化セメントペーストおよびC-S-HへのCs-137の収着挙動受賞者: 植松 慎一郎;松本 圭裕;湊 大輔;長岡 亨;渡邊 直子;小崎 完 - 2015年07月 13th International Conference on the Biogeochemistry of Trace Elements (ICOBTE). 2015年7月12-16日, 福岡, PhD Student Travel Award,
Soil properties explain the soil-to-plant transfer of radiocaesium for Japanese soils受賞者: 植松慎一郎 - 2015年07月 日本アイソトープ協会 若手優秀講演賞、第52回アイソトープ・放射線研究発表会
土壌の放射性セシウムの吸着特性と土壌理化学性の関係：日本とヨーロッパの土壌の比較受賞者: 植松慎一郎
共同研究・競争的資金等の研究課題
大学運営
委員歴
- 2022年04月 - 2023年03月 腐食防食学会 処分容器の長期腐食寿命評価の信頼性向上のための検討、長期腐食寿命評価モデル分科会委員、委員
- 2021年12月 - 2023年03月 腐食防食学会 処分容器の長期腐食寿命評価の信頼性向上のための検討、処分環境下微生物腐食分科会、委員