Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediation

The uptake of radionuclides by plant roots constitutes the main pathway for the migration of radiocaesium from soil to humans, via food chain. In this study we assessed radiocaesium uptake by plant in order to piece together information on factors affecting uptake processes, particularly K supply an...

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Autores principales:	Ciuffo,Liliana Eugenia del Carmen, Belli,María
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2006
Materias:	137Cs plant uptake radioactive traces radiocaesium radiopotassium
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300024
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spelling	oai:scielo:S0717-345820060003000242007-01-17Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediationCiuffo,Liliana Eugenia del CarmenBelli,María 137Cs plant uptake radioactive traces radiocaesium radiopotassium The uptake of radionuclides by plant roots constitutes the main pathway for the migration of radiocaesium from soil to humans, via food chain. In this study we assessed radiocaesium uptake by plant in order to piece together information on factors affecting uptake processes, particularly K supply and differential uptake among different plant species. Soil contaminated by the Chernobyl accident and forage from a semi-natural alpine grassland, situated in Tarvisio, Italy, were sampled during 1999. Under field conditions, 137Cs uptake for Graminaceae and Taraxacum officinale seem to behave in a comparable way. Higher 40K soil activity concentration leads to a lower 137Cs plant uptake, suggesting an inhibitory pattern of potassium on radiocaesium plants uptake. For forage samples, a similar tendency was observed. We analyzed the influence of the ratio of 137Cs/ 40K in soil on 137Cs plant uptake. Under field conditions, the ratio observed varied in a range of 0.5 to 1.3. For most of the species, at higher 40K soil concentration a lower 137Cs uptake was observed, a fact that reflects the resulting effect of the complexity of factors controlling ion absorption from soil.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.9 n.3 20062006-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300024en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	137Cs plant uptake radioactive traces radiocaesium radiopotassium
spellingShingle	137Cs plant uptake radioactive traces radiocaesium radiopotassium Ciuffo,Liliana Eugenia del Carmen Belli,María Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediation
description	The uptake of radionuclides by plant roots constitutes the main pathway for the migration of radiocaesium from soil to humans, via food chain. In this study we assessed radiocaesium uptake by plant in order to piece together information on factors affecting uptake processes, particularly K supply and differential uptake among different plant species. Soil contaminated by the Chernobyl accident and forage from a semi-natural alpine grassland, situated in Tarvisio, Italy, were sampled during 1999. Under field conditions, 137Cs uptake for Graminaceae and Taraxacum officinale seem to behave in a comparable way. Higher 40K soil activity concentration leads to a lower 137Cs plant uptake, suggesting an inhibitory pattern of potassium on radiocaesium plants uptake. For forage samples, a similar tendency was observed. We analyzed the influence of the ratio of 137Cs/ 40K in soil on 137Cs plant uptake. Under field conditions, the ratio observed varied in a range of 0.5 to 1.3. For most of the species, at higher 40K soil concentration a lower 137Cs uptake was observed, a fact that reflects the resulting effect of the complexity of factors controlling ion absorption from soil.
author	Ciuffo,Liliana Eugenia del Carmen Belli,María
author_facet	Ciuffo,Liliana Eugenia del Carmen Belli,María
author_sort	Ciuffo,Liliana Eugenia del Carmen
title	Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediation
title_short	Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediation
title_full	Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediation
title_fullStr	Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediation
title_full_unstemmed	Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediation
title_sort	radioactive trace in semi natural grassland: effect of 40k in soil and potential remediation
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000300024
work_keys_str_mv	AT ciuffolilianaeugeniadelcarmen radioactivetraceinseminaturalgrasslandeffectof40kinsoilandpotentialremediation AT bellimaria radioactivetraceinseminaturalgrasslandeffectof40kinsoilandpotentialremediation
_version_	1718441750490513408

Radioactive trace in semi natural grassland: Effect of 40K in soil and potential remediation

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