Comparison of 226Ra nuclide from soil by three woody species Betula pendula, Sambucus nigra and Alnus glutinosa during the vegetation period

被引:17
作者
Soudek, Petr
Petrova, Sarka
Benesova, Dagmar
Tykva, Richard
Vankova, Radomira
Vanek, Tomas
机构
[1] Inst Expt Bot AS CR, Joint Lab, Lab Plant Biotechnol, Prague 16502 6, Czech Republic
[2] Crop Res Inst, Prague 16502 6, Czech Republic
[3] Inst Organ Chem & Biochem AS CR, Dept Radioisotopes, Prague 16610 6, Czech Republic
[4] Inst Expt Bot AS CR, Lab Hormonal Regulat Plants, Prague 16502 6, Czech Republic
关键词
radium; uptake; plants; uranium mill; Alnus glutinosa; Betula pendula; Sambucus nigra; phytoremediation;
D O I
10.1016/j.jenvrad.2007.03.008
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The uptake of Ra-226 from the contaminated soil was compared in three woody species: alder (Alnus glutinosa), birch (Betula pendula) and elder (Sambucus nigra). The Ra-226 activities increased during the vegetation periods (in 2003, 2004 and 2005) both in the leaves and flowers + seeds. The highest accumulation was found in birch, reaching 0.41 Bq/g DW in the leaves (at the end of the vegetation period in 2003). The lowest Ra-226 accumulation was determined in alder. The extent of Ra-226 accumulation in the leaves of woody species demonstrates that these pioneer woody species can be used as remediation alternative to the use of herbs, provided that the removal of fallen leaves could be achieved in the end of vegetation period. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:76 / 82
页数:7
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