¹³⁷Cs circulation in forest ecosystems on the territory of the Chernobyl exclusion zone (Soil)

• Дата: 2020
• Автор: Zarubina, N.Ye.
• Формат: Стаття
• Мова: English
• Опубліковано: Видавничий дім "Академперіодика" НАН України 2020
• Назва видання: Доповіді НАН України
• Теми: Екологія
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/173768
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: ¹³⁷Cs circulation in forest ecosystems on the territory of the Chernobyl exclusion zone (Soil) / N.Ye. Zarubina // Доповіді Національної академії наук України. — 2020. — № 10. — С. 85-92. — Бібліогр.: 14 назв. — англ.

Seasonal changes in the content of ¹³⁷C in soils were studied at three forest ecosystems in the territory of the Chernobyl exclusion zone. The soils were selected layer by layer: A₀l, A₀f+A₀h, 0-5 and 5-10 cm with the frequency of once every two weeks during 2013-2015. Intermittent changes in the levels of the specific activity of ¹³⁷C in all studied soil layers during the calendar year were recorded at the sites. The dependences of the content of ¹³⁷C in different soil layers on the season of the year have not been identified. The calculation of correlation coeffi cients indicates the existence of a relationship between fluctuations in the concentration of radiocaesium only between layers of 0-5 and 5-10 cm. Air temperature and precipitation over different time intervals preceding the sampling do not affect the redistribution of ¹³⁷C in the soil of the forest ecosystems. It has been suggested that the absence of seasonal patterns of changes in the content of ¹³⁷C in soils is associated with its heterogeneity (different amounts of soil biota in each sample).