title: [About the contents of 40K, 226Ra and 232Th in forest soils of the Republic of Belarus].
abstract: The specific activity of 40K, 232Th and 226Ra in forest soil ecotopes (A2-B2-C2-D2) has been investigated. When the fertility of the soil increases from A2 to D2, then the specific activity of 40K increases in the rooting zone of the soil from 275 ± 6.9 up to 499 ± 11 Bq/kg, 232Th--from 11.8 ± 0.5 to 17.1 ± 1.1 Bq/kg, 226Ra- from 19.2 γ 0.8 to 27.9 ± 1.5 Bq/kg. The calculated capacity of the absorbed dose of γ-radiation conditioned by 40K, 232Th and 226Ra increases from A2 to D2 from 27.5 ± 0.5 to 44.1 ± 1.1 nGy / h at the height of 1 m.
authors.forename: A N
authors.initials: AN
authors.lastname: Perevolotskiĭ
authors.forename: T V
authors.initials: TV
authors.lastname: Perevolotskaia
mesh_terms: D065928:Forests; D005720:Gamma Rays; D006801:Humans; D011197:Potassium Radioisotopes / Q000302:isolation & purification*; D011883:Radium / Q000302:isolation & purification*; D002094:Republic of Belarus; D012990:Soil Pollutants, Radioactive / Q000302:isolation & purification*; D013910:Thorium / Q000302:isolation & purification*
chemical_list: D011197:Potassium Radioisotopes; D012990:Soil Pollutants, Radioactive; D013910:Thorium; D011883:Radium