Radiocaesium bioavailability to flooded rice in comparison with upland ryegrass

Research output: Contribution to report/book/conference proceedingsChapterpeer-review

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Radiocaesium bioavailability to flooded rice in comparison with upland ryegrass. / Uematsu, Shinichiro; Vandenhove, Hildegarde; Sweeck, Lieve; Smolders, Erik.

Strategies and Practices in the Remediation of Radioactive Contamination in Agriculture: Report of a Technical Workshop Held in Vienna, Austria, 17–18 October 2016. STI-PUB-1904. ed. Vienna, Austria : IAEA - International Atomic Energy Agency, 2016. p. 89-92.

Research output: Contribution to report/book/conference proceedingsChapterpeer-review

Harvard

Uematsu, S, Vandenhove, H, Sweeck, L & Smolders, E 2016, Radiocaesium bioavailability to flooded rice in comparison with upland ryegrass. in Strategies and Practices in the Remediation of Radioactive Contamination in Agriculture: Report of a Technical Workshop Held in Vienna, Austria, 17–18 October 2016. STI-PUB-1904 edn, IAEA - International Atomic Energy Agency, Vienna, Austria, pp. 89-92. <https://www.iaea.org/publications/13444/strategies-and-practices-in-the-remediation-of-radioactive-contamination-in-agriculture>

APA

Uematsu, S., Vandenhove, H., Sweeck, L., & Smolders, E. (2016). Radiocaesium bioavailability to flooded rice in comparison with upland ryegrass. In Strategies and Practices in the Remediation of Radioactive Contamination in Agriculture: Report of a Technical Workshop Held in Vienna, Austria, 17–18 October 2016 (STI-PUB-1904 ed., pp. 89-92). IAEA - International Atomic Energy Agency. https://www.iaea.org/publications/13444/strategies-and-practices-in-the-remediation-of-radioactive-contamination-in-agriculture

Vancouver

Uematsu S, Vandenhove H, Sweeck L, Smolders E. Radiocaesium bioavailability to flooded rice in comparison with upland ryegrass. In Strategies and Practices in the Remediation of Radioactive Contamination in Agriculture: Report of a Technical Workshop Held in Vienna, Austria, 17–18 October 2016. STI-PUB-1904 ed. Vienna, Austria: IAEA - International Atomic Energy Agency. 2016. p. 89-92

Author

Uematsu, Shinichiro ; Vandenhove, Hildegarde ; Sweeck, Lieve ; Smolders, Erik. / Radiocaesium bioavailability to flooded rice in comparison with upland ryegrass. Strategies and Practices in the Remediation of Radioactive Contamination in Agriculture: Report of a Technical Workshop Held in Vienna, Austria, 17–18 October 2016. STI-PUB-1904. ed. Vienna, Austria : IAEA - International Atomic Energy Agency, 2016. pp. 89-92

Bibtex - Download

@inbook{00f8659ce7a044d797534b3d9125b606,
title = "Radiocaesium bioavailability to flooded rice in comparison with upland ryegrass",
abstract = "Attention is focused on mechanisms of the soil-plant transfer of radiocaesimn (R.Cs) to paddy rice in the area affected by the accident at the Ful{"}UShima Daiichi nuclear poWer plant. Paddy rice is cultivated in flooded soils, in contrast to tyegrass grovm in upland soil conditions. RCs transfer to paddy rice has importance as a major food crop, while rye grass is a major forage crop. It is speculated that flooding a soil can enl1ance the RCs transfer to crop plants due to accumulated ammonimn (NH4) in soils mobilizing RCs by the ion exchange in soils. Pot trials were perfonned to compare and analyse RCs transfer between paddy rice (flooded) and rye grass (Wlsaturated). Paddy soils (n - 9) collected from the Fukushima affected area were either cultivated with rice in flooded conditions or with iyegrass in unsaturated conditions, allowing pai.twise comparisons of the RCs b'3.llsfer. Against this speculation, the soil-plant transfer of RCs was 1.2-14-fold smaller for flooded rice than that for 1yegrass (P< 0.05). The RCs transfer to rice and iyegrass was negatively correlated to the radiocaesium interception potential (RIP) of soils and to the soil exchangeable potassium (K) content. The RCs mobility in soils, expressed as a soil solution-soil RCs concentration ratio, was on average 1.6-fold smaller for flooded soils than m1sahlrated soils, despite more NH4 accumulation i11 soil solution in flooded soils. The plant RCs concentration was not related to that in the soil solution but shaq>ly increased ·with the RCs/potassium (K) ratio in the soil solution with a larger slope for rice than ryegrass. A larger :fraction of soil pores filled with water in saturated soils increases the diffusivity ofK in soil solution and, hence, avoiding K depletion at the root sutface of rice and suppressing RCs uptake by cationic competition between K and RCs. It was revealed that the mechanisms mling RCs bioavailability to flooded lice are similar to what was previously established in unsaturated soils. The findings will contribute to the improved prediction of soil plant RCs transfer for rice grown in the Fukushima affected area. ",
keywords = "Technical workshop report, Ryegrass, soil-plant transfer, Radiocaesium, Fukushima Daiichi",
author = "Shinichiro Uematsu and Hildegarde Vandenhove and Lieve Sweeck and Erik Smolders",
note = "Score=3",
year = "2016",
month = oct,
day = "18",
language = "English",
isbn = "978-92-0-102120-5",
pages = "89--92",
booktitle = "Strategies and Practices in the Remediation of Radioactive Contamination in Agriculture",
publisher = "IAEA - International Atomic Energy Agency",
edition = "STI-PUB-1904",

}

RIS - Download

TY - CHAP

T1 - Radiocaesium bioavailability to flooded rice in comparison with upland ryegrass

AU - Uematsu, Shinichiro

AU - Vandenhove, Hildegarde

AU - Sweeck, Lieve

AU - Smolders, Erik

N1 - Score=3

PY - 2016/10/18

Y1 - 2016/10/18

N2 - Attention is focused on mechanisms of the soil-plant transfer of radiocaesimn (R.Cs) to paddy rice in the area affected by the accident at the Ful"UShima Daiichi nuclear poWer plant. Paddy rice is cultivated in flooded soils, in contrast to tyegrass grovm in upland soil conditions. RCs transfer to paddy rice has importance as a major food crop, while rye grass is a major forage crop. It is speculated that flooding a soil can enl1ance the RCs transfer to crop plants due to accumulated ammonimn (NH4) in soils mobilizing RCs by the ion exchange in soils. Pot trials were perfonned to compare and analyse RCs transfer between paddy rice (flooded) and rye grass (Wlsaturated). Paddy soils (n - 9) collected from the Fukushima affected area were either cultivated with rice in flooded conditions or with iyegrass in unsaturated conditions, allowing pai.twise comparisons of the RCs b'3.llsfer. Against this speculation, the soil-plant transfer of RCs was 1.2-14-fold smaller for flooded rice than that for 1yegrass (P< 0.05). The RCs transfer to rice and iyegrass was negatively correlated to the radiocaesium interception potential (RIP) of soils and to the soil exchangeable potassium (K) content. The RCs mobility in soils, expressed as a soil solution-soil RCs concentration ratio, was on average 1.6-fold smaller for flooded soils than m1sahlrated soils, despite more NH4 accumulation i11 soil solution in flooded soils. The plant RCs concentration was not related to that in the soil solution but shaq>ly increased ·with the RCs/potassium (K) ratio in the soil solution with a larger slope for rice than ryegrass. A larger :fraction of soil pores filled with water in saturated soils increases the diffusivity ofK in soil solution and, hence, avoiding K depletion at the root sutface of rice and suppressing RCs uptake by cationic competition between K and RCs. It was revealed that the mechanisms mling RCs bioavailability to flooded lice are similar to what was previously established in unsaturated soils. The findings will contribute to the improved prediction of soil plant RCs transfer for rice grown in the Fukushima affected area.

AB - Attention is focused on mechanisms of the soil-plant transfer of radiocaesimn (R.Cs) to paddy rice in the area affected by the accident at the Ful"UShima Daiichi nuclear poWer plant. Paddy rice is cultivated in flooded soils, in contrast to tyegrass grovm in upland soil conditions. RCs transfer to paddy rice has importance as a major food crop, while rye grass is a major forage crop. It is speculated that flooding a soil can enl1ance the RCs transfer to crop plants due to accumulated ammonimn (NH4) in soils mobilizing RCs by the ion exchange in soils. Pot trials were perfonned to compare and analyse RCs transfer between paddy rice (flooded) and rye grass (Wlsaturated). Paddy soils (n - 9) collected from the Fukushima affected area were either cultivated with rice in flooded conditions or with iyegrass in unsaturated conditions, allowing pai.twise comparisons of the RCs b'3.llsfer. Against this speculation, the soil-plant transfer of RCs was 1.2-14-fold smaller for flooded rice than that for 1yegrass (P< 0.05). The RCs transfer to rice and iyegrass was negatively correlated to the radiocaesium interception potential (RIP) of soils and to the soil exchangeable potassium (K) content. The RCs mobility in soils, expressed as a soil solution-soil RCs concentration ratio, was on average 1.6-fold smaller for flooded soils than m1sahlrated soils, despite more NH4 accumulation i11 soil solution in flooded soils. The plant RCs concentration was not related to that in the soil solution but shaq>ly increased ·with the RCs/potassium (K) ratio in the soil solution with a larger slope for rice than ryegrass. A larger :fraction of soil pores filled with water in saturated soils increases the diffusivity ofK in soil solution and, hence, avoiding K depletion at the root sutface of rice and suppressing RCs uptake by cationic competition between K and RCs. It was revealed that the mechanisms mling RCs bioavailability to flooded lice are similar to what was previously established in unsaturated soils. The findings will contribute to the improved prediction of soil plant RCs transfer for rice grown in the Fukushima affected area.

KW - Technical workshop report

KW - Ryegrass

KW - soil-plant transfer

KW - Radiocaesium

KW - Fukushima Daiichi

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/overview/38710251

M3 - Chapter

SN - 978-92-0-102120-5

SP - 89

EP - 92

BT - Strategies and Practices in the Remediation of Radioactive Contamination in Agriculture

PB - IAEA - International Atomic Energy Agency

CY - Vienna, Austria

ER -

ID: 6807418