کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11026426 1666384 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
137Cs and K annual fluxes in a cropland and forest ecosystems twenty-four years after the Chernobyl accident
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
137Cs and K annual fluxes in a cropland and forest ecosystems twenty-four years after the Chernobyl accident
چکیده انگلیسی
Biological cycles of the Chernobyl originated cesium-137 (137Cs, radiocesium) and the natural potassium (K) in oak, birch, and pine forest, and wheat cropland in Russian Federation, approximately 500 km northeast of the Chernobyl Nuclear Power Plant, were subject to a multiyear monitoring. By 2010, the annual return of 137Cs from forest vegetation to the soil in dead tree components still exceeds its annual accumulation in the tree phytomass by a factor of 4-6, apparently due to residual surface contamination in the external bark and the ongoing process of tree stand decontamination following the initial fallout. In the cropland, both ascending and descending fluxes of 137Cs are close to the steady state. The annual accumulation of 137Cs in the tree biomass was the highest in the oak forest and the lowest in the pine forest. The annual K accumulation was the highest in the cropland and the lowest in the pine forest.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 195, December 2018, Pages 79-89
نویسندگان
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