کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1739040 1016829 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Root uptake of radionuclides following their acute soil depositions during the growth of selected food crops
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Root uptake of radionuclides following their acute soil depositions during the growth of selected food crops
چکیده انگلیسی

Greenhouse experiments were performed to investigate the root uptake of radionuclides following their acute soil deposition during the growth of several food crops. For this purpose, the soil under the standing plants was contaminated without any direct contamination of their stems or leaves. The intention of this design was to differentiate foilar uptake and root uptake subsequent to a radionuclide deposition during the vegetation period. Soil-to-plant transfer of a radionuclide was quantified with its aggregated transfer factors specified for the time periods from deposition until harvest (Taga, m2 kg−1). Deposition time-dependent Taga values of Mn, Co, Sr and Cs for selected crop species were measured in an acid sandy soil. For rice and Chinese cabbage, HTO experiments were also carried out using this soil. Particularly for rice, experiments with various paddy soils were also performed for 90Sr and 137Cs. The obtained Taga values varied considerably with the radionuclides, plant species, and times of deposition. Recommendations about, and limitations in, the use of the Taga values were discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 100, Issue 9, September 2009, Pages 746–751
نویسندگان
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