کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4392500 1618167 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Botanical survey and screening of plant species which accumulate 226Ra from contaminated soil of uranium waste depot
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش خاک شناسی
پیش نمایش صفحه اول مقاله
Botanical survey and screening of plant species which accumulate 226Ra from contaminated soil of uranium waste depot
چکیده انگلیسی

A geobotanical study was performed of the wild plants growing in the area of the old uranium mill tailings waste depot of a former uranium ore reprocessing factory in South Bohemia and the distribution of 226Ra in selected plants was determined. The distribution of 226Ra in contaminated soil was found to be extremely variable (from 7 to 32 Bq 226Ra g−1 of DW). The differences in plant distribution were caused by factors of disturbance, soil properties (nutrients and salt content, water supply), and successional stage. No direct relation was proved between plant species characteristics and their radioactivity content. The results showed a great range of variation in the accumulation of 226Ra by the plant species found. The highest activity of 226Ra was found in Potentilla reptans (4.09 Bq 226Ra g−1 of DW), Mentha arvensis (4.00 Bq 226Ra g−1 of DW), and Daucus carota (3.70 Bq 226Ra g−1 of DW). About half of the plant species are used as medicinal plants and some of them are accumulators of 226Ra. However, no plants suitable for phytoextraction of 226Ra contaminated substrates were discovered.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Soil Biology - Volume 43, Issue 4, July–August 2007, Pages 251–261
نویسندگان
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