Soil to plant transfer of radioactive cesium and its relation to soil and plant properties

Skarlou, V.; Papanicolaou, E.; Nobeli, C.

doi:10.1016/0016-7061(96)00011-0

Cited by 25 publications

(20 citation statements)

References 8 publications

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“…Interactions between radionuclides and soil depend on the chemical form of element and some soil properties such as pH, mineralogical composition, organic matter content and nutrient status [1][2][3]. Plant uptake of radionuclides will be dependent on these interactions and will also depend on the metabolic and physiological characteristics of the species.…”

Section: Introductionmentioning

confidence: 99%

Bio-geochemical behavior of⁹⁰Sr and¹³⁷Cs in tropical soil

et al. 2005

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Abstract. In this work TF values for90 Sr and 137 Cs were measured for reference plants grown in lysimeters containing soils representative of large agricultural areas in Brazil: Ferralsol, Nitisol and Acrisol. These results were discussed in the light of pedological analyses and results from the follow sequential chemical extraction protocol: 1) slightly acidic phase containing readily bioavailable elements; 2) easily reducible phase containing elements bound to Mn oxides; 3) oxidizable phase containing elements bound to labile organic matter; 4) alkaline phase containing mainly elements bound to Fe compounds; 5) resistant phase not potentially available to crops. These results showed that the main soil factors influencing the 137 Cs transfer to these soils were: exchangeable K, organic matter and iron oxides content. These results showed that 90 Sr plant uptake was influenced by exchangeable Ca. All these finds are in accord with previous studies and seems confirm the vulnerability of Ferralsol and Acrisol to 137 Cs contamination.

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Section: Introductionmentioning

confidence: 99%

Bio-geochemical behavior of⁹⁰Sr and¹³⁷Cs in tropical soil

et al. 2005

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“…Soil features and particularly, exchangeable cation contents may explain site variability. 61 and 37 sites displayed a low pH (5,1 and 3,7), a low CEC and a high sand content, 50% for 37 site favouring strong caesium absorption by roots [17].…”

Section: Discussionmentioning

confidence: 99%

Soil-plant transfer of radiocaesium in weakly contaminated forest ecosystems

Lamarque¹,

Lucot²,

Badot³

2005

Radioprotection

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Abstract. During the Chernobyl accident, large areas in Europe, particularly forests, were contaminated by radiocaesium. Soil-plant transfer is often the first step by which 137 Cs enters to food chains by incorporating the forest biogeochemical cycle. The present work is devoted to assess the soil-plant transfer of radiocaesium in weakly contaminated forest area, in the Franche-Comté region (16 202 km 2 ) in North Eastern France. This region has been markely contaminated after the Chernobyl accident. Twelve sites, with various functional features and high diversity of ecological contexts were selected to sample forests trees. Two species (Picea abies and Fagus sylvatica) and two organs, (leaves or needles and young branches) were sampled for radioactivity measurements. Radiocaesium activities in soils varied between 61 to 280 Bq.kg -1 DW at 0-5 cm depth and between 14 to 224 Bq.kg -1 DW at 10-15 cm. Radiocaesium activities in leaves, needles and branches displayed high variability. We reported a large variability of Aggregated Transfer Factors (T ag ) values with respect to vegetation type, organ type and soil features. The activity concentration in the leaves and needles were generally higher than those measured in the branches. The T ag values could be explained by the radiocaesium bioavailability variability in relation to soil type, soil features and environmental parameters.

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“…Generally, there is a negative correlation between the Cs plant transfer factor and the pH [2,9,19]. Besides the pH influence, it is known that the clay mineral type can also influence the transfer factor: in the presence of 2:1 clay mineral type, the fixation of l37 Cs in the internal feces of these clays can occur few time after contamination (less than 3 years), reducing transfer to plants [2].…”

Section: J2 Transfer Factor Related To Soil Propertiesmentioning

confidence: 99%

“…Interactions between radionuclides and soil depends on the chemical form of element and some soil properties as pH, mineralogkal composition, organic matter content and nutrient status [6,7,8,9,10]. The plant uptake of radbnuclklcs will be dependent on interactions occurring in soils as well metabolic and physiological characteristics of the species [6].…”

Section: Introductionmentioning

confidence: 99%

Biogeochemical behavior of¹³⁷Cs and⁶⁰Co in tropical soils

2002

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Abstract.Results of a sequential chemical extraction procedure for n? Cs in an acidic Oxisot showed that 3 years after the contamination, 40% of total concentration was considered readily bio-available, 20% bound to organic matter and 40% bound to Fe and Mn oxides. Four years after, the li7 Cs distribution in this soil have been changed as a consequence of changes in soil properties: 8% bio-available, 10% bound to organic matter, 43% bound to Fe and Mn oxides and 33% strongly bound to soil compounds. Changes in the ,37 Cs distribution in this soil were followed by reductions in soil to plant transfer factor (TF): TFojaati996 = 2,21 ± 1,30 (n=3) and r/'0uTO,2«w = 1,63 ± 0,38 (n=6). During the same period the soil properties of a basic Oxisol remained almost the same, consequently the geochemical distribution and soil to plant transfer factor for " 7 Cs did not change in this soil The geochemical distribution in an acidic Alfisol showed that Mn oxides are the main sink for this element and no ^Co was detected in the readily bio-available phase. In this soil, four years after contamination with 60 Co, it was not detected in plants.

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Soil to plant transfer of radioactive cesium and its relation to soil and plant properties

Cited by 25 publications

References 8 publications

Bio-geochemical behavior of⁹⁰Sr and¹³⁷Cs in tropical soil

Bio-geochemical behavior of⁹⁰Sr and¹³⁷Cs in tropical soil

Soil-plant transfer of radiocaesium in weakly contaminated forest ecosystems

Biogeochemical behavior of¹³⁷Cs and⁶⁰Co in tropical soils

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Soil to plant transfer of radioactive cesium and its relation to soil and plant properties

Cited by 25 publications

References 8 publications

Bio-geochemical behavior of90Sr and137Cs in tropical soil

Bio-geochemical behavior of90Sr and137Cs in tropical soil

Soil-plant transfer of radiocaesium in weakly contaminated forest ecosystems

Biogeochemical behavior of137Cs and60Co in tropical soils

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Bio-geochemical behavior of⁹⁰Sr and¹³⁷Cs in tropical soil

Bio-geochemical behavior of⁹⁰Sr and¹³⁷Cs in tropical soil

Biogeochemical behavior of¹³⁷Cs and⁶⁰Co in tropical soils