[Method of assessment of 137Cs biological availability in forest soil].
A method for quantitative assessment of 137Cs availability to plants in forest ecosystems on the basis of soil properties has been developed. It is shown that the experimental dependencies of 137Cs soil-to-plant transfer factor (TFag) for fern and bilberry on the bioavailability factor calculated on the basis of soil characteristics of root layer: 137Cs exchangeability, exchangeable Ca, effective selectivity coefficient, were satisfactory described by linear function. The advantage of the proposed method is that the necessary soil characteristics can be taken from the reference literature, evaluated using empirical correlations or determined with standard agrochemical procedures.
Konoplëva
I V
IV
Russian Institute of Agricultural Radiology and Agroecology, Obninsk, 249020 Russia. konoplev@obninsk.com
Avila
R
R
Bulgakov
A A
AA
Johanson
K
K
Konoplëv
A V
AV
Popov
V E
VE
D001682:Biological Availability; D002588:Cesium Radioisotopes / Q000378:metabolism* / Q000493:pharmacokinetics; D017753:Ecosystem; D029624:Ferns / Q000378:metabolism; D016014:Linear Models; D015233:Models, Statistical; D018517:Plant Roots / Q000378:metabolism; D010944:Plants / Q000378:metabolism*; D012990:Soil Pollutants, Radioactive / Q000378:metabolism* / Q000493:pharmacokinetics; D014197:Trees; D029800:Vaccinium myrtillus / Q000378:metabolism
D002588:Cesium Radioisotopes; D012990:Soil Pollutants, Radioactive