Effectiveness of immediate and delayed AFCF application in reducing radiocaesium transfer to ryegrass

Vandenhove, Hildegarde; Hees, May Van; Vandecasteele, Carlo

doi:10.1016/s0265-931x(97)00090-8

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…Doses of 10 g m -2 provoked a 25-fold decrease in sandy soils, although only a 64% reduction in loamy soils. For aged RCs, reduction decreased to 3.5 times in sandy soils, with the same amendment dose ( , ). Therefore, our field results and others previously reported strengthen the need of a previous detailed characterization step and laboratory back-up for the selection of suitable amendments for a given soil type.…”

Section: Resultsmentioning

confidence: 99%

Assessment of the Suitability of Soil Amendments To Reduce ¹³⁷Cs and ⁹⁰Sr Root Uptake in Meadows

Camps

Rigol

Vidal

et al. 2003

Environ. Sci. Technol.

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In situ remediation strategies are an alternative approach in the management of radioactive contaminated areas, especially when based on modification of soil properties by the addition of amendments. Here, this strategy is applied to reduce 137Cs and 90Sr soil-plant transfer in meadows from areas of Russia, Belarus, and Ukraine affected by the Chernobyl fallout. Meadows were established on podzolic and peaty soils. Amendments covered a wide range of materials, such as loamy and sandy soils, polygorskite clay, phosphorite, turf, and sapropel. Field experiments showed the poor efficiency of most of the materials: only the polygorskite clay provoked a notable reduction (1.5-2-fold) in 137Cs root uptake. Subsequent laboratory characterization showed the lack of significant changes in the radiocesium interception potential and soil solution composition in the amended soils, a fact that helped to explain the lack of effect on the reduction of transfer. Moreover, a laboratory methodology based on the quantification of the adsorption potential of the amendments and the reversibility of the adsorption process was applied. This methodology was first proposed for the correct selection of the suitable materials to be used to decrease radionuclide root uptake in future remediation actions and then validated with data of the previous field experiments.

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Section: Resultsmentioning

confidence: 99%

Assessment of the Suitability of Soil Amendments To Reduce ¹³⁷Cs and ⁹⁰Sr Root Uptake in Meadows

Camps

Rigol

Vidal

et al. 2003

Environ. Sci. Technol.

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“…It was reported to have no effect on plant growth in soil (Vandenhove et al. , 1996; 1998; 2000). However, the potentially formed free cyanide (Kang et al.…”

Section: Introductionmentioning

confidence: 99%

Radiocesium transfer between Medicago truncatula plants via a common mycorrhizal network

Gyuricza

Thiry

Wannijn

et al. 2010

Environmental Microbiology

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SummaryCommon mycorrhizal networks of arbuscular mycorrhizal fungi have been reported to transfer cesium between plants. However, a direct hyphae-mediated transfer (via cytoplasm/protoplasm) cannot be distinguished from an indirect transfer. Indeed, cesium released by the roots of the donor plant can be taken up by the receiver plant or fungal hyphae. In the present study, Medicago truncatula plants were connected by a common mycorrhizal network and Prussian Blue (ammonium-ferric-hexacyano ferrate) was added in the growth medium to adsorb the released radiocesium. A direct transfer of radiocesium to roots and shoots of the receiver plant was clearly demonstrated for the first time. Even though this transfer was quantitatively low, it suggested that shared mycorrhizal networks could contribute to the redistribution of this radionuclide in the environment, which otherwise would be restricted both in time and space. This finding may also help to understand the behaviour of its chemical analogue, potassium.

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“…A wide range of long-term physical, chemical and management-based measures can be taken to reduce the soil-plant-animal transfer of radionuclides and in turn limit their entry into the human food chain (IAEA, 1994). Included are techniques such as deep ploughing (Vovk et al, 1993), soil application of fertilisers (Nisbet et al, 1994), use of binding agents in soils (Vandenhove et al, 1998) or livestock (Voigt, 1993), changes in livestock management (Howard, 1993) or in land use (IAEA, 1994). In the event of a future nuclear accident, it is critical that not only the 'optimal' countermeasure should be selected for each agricultural situation, but also that the benefits gained in lowering the transfer of radionuclides into the human food chain are not outweighed by negative environmental, social or economic impacts from that countermeasure.…”

Section: Introductionmentioning

confidence: 99%

Development of a spatial decision support system for post-emergency management of radioactively contaminated land

Salt

Dunsmore

2000

Journal of Environmental Management

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Effectiveness of immediate and delayed AFCF application in reducing radiocaesium transfer to ryegrass

Cited by 8 publications

References 24 publications

Assessment of the Suitability of Soil Amendments To Reduce ¹³⁷Cs and ⁹⁰Sr Root Uptake in Meadows

Assessment of the Suitability of Soil Amendments To Reduce ¹³⁷Cs and ⁹⁰Sr Root Uptake in Meadows

Radiocesium transfer between Medicago truncatula plants via a common mycorrhizal network

Development of a spatial decision support system for post-emergency management of radioactively contaminated land

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Effectiveness of immediate and delayed AFCF application in reducing radiocaesium transfer to ryegrass

Cited by 8 publications

References 24 publications

Assessment of the Suitability of Soil Amendments To Reduce 137Cs and 90Sr Root Uptake in Meadows

Assessment of the Suitability of Soil Amendments To Reduce 137Cs and 90Sr Root Uptake in Meadows

Radiocesium transfer between Medicago truncatula plants via a common mycorrhizal network

Development of a spatial decision support system for post-emergency management of radioactively contaminated land

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Product

Resources

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Assessment of the Suitability of Soil Amendments To Reduce ¹³⁷Cs and ⁹⁰Sr Root Uptake in Meadows

Assessment of the Suitability of Soil Amendments To Reduce ¹³⁷Cs and ⁹⁰Sr Root Uptake in Meadows