Published March 2001 | Version v1
Journal article Metadata-only

Modelling of 137Cs behaviour in forest ecosystems and prediction of its accumulation in forest products

Creators

  • 1. Vserossijskij NII Sel'skokhozyajstvennoj Radiologii i Agroehkologii, Obninsk (Russian Federation)
  • 2. Shvedskij Inst. Radiatsionnoj Zashchity, Stokgol'm (Sweden)

Description

A mathematical model of 137Cs migration in forest ecosystem contaminated due to the Chernobyl accident presented, which describes the behaviour of this radionuclide in the forest litter-soil system, tress, and forest animals. The model's parameters for different types of forest ecosystems are estimated and model's adequacy is tested through the use of independent experimental data. The sensitivity of the model's output variables is analyzed to variations in the most significant parameters. The differences in the seasonal and mean annual dynamics of 137Cs concentration in muscles of roe deers and mooses are shown to be defined by specific features of the diets of these animals and variations in 137Cs content in the main diet components

Abstract (Russian)

Представлена математическая модель миграции 137Cs в лесной экосистеме, загрязненной в результате аварии на Чернобыльской АЭС, описывающая поведение этого радионуклида в системе лесная подстилка-почва, древесном и нижнем ярусах леса и организме лесных животных. Оценены параметры модели для лесных экосистем различных типов, выполнена проверка адекватности модели с использованием независимых экспериментальных данных. Проведен анализ чувствительности выходных переменных модели к изменению наиболее значимых параметров. Показано, что различия в сезонной и среднегодовой динамике концентрации 137Cs в мышцах лосей и косуль определяются спецификой рационов питания этих видов животных и изменением содержания 137Cs в основных компонентах рациона

Additional details

Additional titles

Original title (Russian)
Моделирование поведения

Publishing Information

Journal Title
Radiatsionnaya Biologiya, Radioehkologiya
Journal Volume
41
Journal Issue
2
Journal Page Range
p. 217-225
ISSN
0869-8031
CODEN
RBIREJ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
33020596
Subject category
S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
BERRIES; CESIUM 137; CHERNOBYLSK-4 REACTOR; CONTAMINATION; FORECASTING; FOREST LITTER; FORESTS; MATHEMATICAL MODELS; MUSHROOMS; RADIOECOLOGICAL CONCENTRATION; RADIONUCLIDE MIGRATION; REACTOR ACCIDENTS; SOILS; TERRESTRIAL ECOSYSTEMS; WILD ANIMALS; WOOD
Descriptors DEC
ACCIDENTS; ANIMALS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BIOLOGICAL MATERIALS; CESIUM ISOTOPES; ECOLOGICAL CONCENTRATION; ECOSYSTEMS; ENRICHED URANIUM REACTORS; ENVIRONMENTAL TRANSPORT; FOOD; FRUITS; FUNGI; GRAPHITE MODERATED REACTORS; INTERMEDIATE MASS NUCLEI; ISOTOPES; LWGR TYPE REACTORS; MASS TRANSFER; MATERIALS; NUCLEI; ODD-EVEN NUCLEI; PLANTS; POWER REACTORS; RADIOISOTOPES; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
20 refs.; 3 tabs.; 6 figs.