Abstract
The results of three years research on the effectiveness of impact of one-time application of wood ash both contaminated and non-contaminated with 137Cs, and their combined introduction of potassium fertilizers to reduce radionuclide transfer from soil to shoots and leaves of some species of trees and wild berry plants in forest ecosystems of Ukrainian Polissia. It has been demonstrated that the introduction of a single application of wood ash both contaminated with 137Cs and non-contaminated combined with potassium fertilizers (50 : 50 on a percentage of potassium) at the rate of 100 kg of potassium to 1 ha reduces the transition of radionuclides from soil to studied plants on average for three years to 35 and 20% respectively. For some types of wild berry plants (young shoots and leaves of blueberries and cranberries) and trees (young shoots and leaves of mountain ash and oak) coefficients of 137Cs transfer during the third (2014) year after applying meliorants decreased by 40–70% compared with plants control split.
Highlights
Узагальнено результати трирічних досліджень щодо ефективності впливу разового внесення деревної золи як забрудненої, так і не забрудненої 137Cs, а також за їх поєднаного внесення з калійними добривами на зменшення переходу радіонукліда з ґрунту у молоді пагони та листя деяких видів дерев та дикорослих ягідних рослин лісових екосистем Полісся України
We have presented the results of both the short and long term effects of a single dose application of potassium (100 kg K ha–1)
There was a clear decrease of 137Cs TF from soil to blueberry plants in following (2013 and 2014) years resulting in about 2-fold decrease of TF in 2014, when radionuclide transfer to experimental and control plants was similar
Summary
Узагальнено результати трирічних досліджень щодо ефективності впливу разового внесення деревної золи як забрудненої, так і не забрудненої 137Cs, а також за їх поєднаного внесення з калійними добривами на зменшення переходу радіонукліда з ґрунту у молоді пагони та листя деяких видів дерев та дикорослих ягідних рослин лісових екосистем Полісся України. Among other elements ash contains available potassium (K), which can be used as a fertilizer in contaminated forest and prevent accumulation of cesium. The transfer of radiocesium to non-farm products (e.g. edible fungi, game animals) is often much greater than that to agriculturally produced foodstuffs [1] This means that people who consume these non-farm products may increase their internal radiation dose [2]. Ash recycling to forest and agricultural soils would be used as a measure to reduce the uptake of 137Cs in plants
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