Depth Distribution of Cs-137 in Anthrosol from the Experimental Field Radmilovac Near Belgrade, Serbia
Đorđević, Aleksandar R.
Rajkovic, Milos B.
Pavlović, Vladimir B.
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This is a preliminary study of the depth distribution of Cs-137 radionuclides in cultivated anthrosol soil of a 15-year old peach tree plantation at the experimental field Radmilovac near Belgrade. Before planting, the soil was ploughed at the depth of 1 m. The soil had not been annually ploughed, irrigated and treated with mineral fertilizers for three years before sampling. Activity concentration for Cs-137 ranged from 1.8 Bq kg(-1) to 35 Bq kg(-1). Along the soil depth it varied highly, reaching as high a total variation coefficient as 83 %. Radiocaesium distribution patterns depended on the extent of soil mixing in the plough layer, as it was mechanically transferred from the surface to the lower soil layers during cultivation. Cs-137 was associated with humus content and fixation to clay fractions in the soil. Our results single out soils hygroscopic water as a valuable parameter for Cs-137 behaviour that could be used commonly if the measurement is standardised.
Кључне речи:cultivated soil / fruit trees / hygroscopic water / radiocaesium / soil properties
Извор:Arhiv za higijenu rada i toksikologiju, 2013, 64, 3, 425-430
ISSN: 0004-1254 (print); 1848-6312 (electronic)