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Current issue: Volume 22, No. 1 (2022)
Ananieva T., Chorna V., Kharchenko K. 2022. Distribution of radionuclides in artificial forest ecosystem components of the field protective plantation in the Steppe Ukraine (Dnipropetrovsk region). Acta Biol. Univ. Daugavp., 22(1): 19 – 30.
Abstract
A radioecological analysis of three components of the ecosystem of artificial forest plantations of Robinia pseudoacacia, as soil, forest litter, tree leaves was done. The highest concentrations of 226Ra, 232Th, 40K natural radionuclides and the value of integral indicators of effective specific radioactivity and absorbed dose rate were found in forest litter, the lowest in foliage. The values of the indicators of the effective specific radioactivity and the absorbed dose rate in the forest litter decreased during the autumn-winter period, which indicates a seasonal decrease in the radiation background due to the migration of dose-forming radionuclides into deeper soil layers. In the autumn-winter period, the concentrations of 137Cs and 90Sr radionuclides in the soil layer of the artificial forest belt ecosystem increased by 1.5–2 times, although they did not exceed the permissible norms. As the age of the trees increased, the indicators of the content of natural radionuclides and the effective specific radioactivity decreased in the surface layer of the soil. The levels of 137Cs and 90Sr artificial radionuclides were 20–40 times lower than the natural ones.
Keywords: artificial forest plantations, radionuclides, effective specific radioactivity,
absorbed dose rate.
*Corresponding author: Tamila V. Ananieva. Dnipro State Agrarian and Economic University, Serhii Yefremov Str., 25, Dnipro, 49006, Ukraine. E-mail: ananieva.tamila@gmail.com
Valentyna I. Chorna. Dnipro State Agrarian and Economic University, Serhii Yefremov Str., 25, Dnipro, 49006, Ukraine.
Kateryna S. Kharchenko. Prydniprovsk State Academy of Civil Engineering and Architecture, Chernyshevsky Str., 24a Dnipro, 49600, Ukraine. E-mail: katerinaharchenko75@gmail.com
