AN ATTEMPT TO ANALYSE THE DISTRIBUTION OF RADIOISOTOPES IN NATURAL BIOGEOCENOSES

Journal Article · Mon Jul 11 04:00:00 EDT 1960 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4158761

Makhonina, G I; Molchanova, I V; Subbotina, E N; Timofeev-Resovskii, N V; Titlyanova, A A; Tyuryukanov, A N

S>Studies were made of chemical element migration and distributions in natural biogeocenoses. Tests were conducted in coniferous and leaf forests with the use of Fe/sup 59/ Co/sup 60/, Zn/sup 65/, and Ce/sup 144/. The data show the distribution of iron, cobalt, zinc, and cerium by the components of the biogeocenoses: the content of all elements in the surface biomass was counted in tens of percent and in the rcots in per cent of the total content. The distribution in the soil layer was identical in all soils. but the migration differed according to terrain. Eighty-six percent of the cobalt was absorbed by the upper layer and abcut 1.8% between the 15 and 20 cm layer. Seventy-four per cent of the zinc was absorbed in the 0 to 5 cm layer and 2.5% in the 15 to 20 cm layer: Sixty-eight per cent of the cerium was absorbed in the 0 to 5 cm layer and 5.2% in the l5to 20 cm layer. Iron proved to be the most mobile; 51.2% was absorbed in the 0 to 5 cm layer and 7.8% in the 15 to 20 cm layer. A table of distributions of various elements in various plants shows that larger concentrations of cerium are confined to the roots of all examined plants: four out of every 14 plants concentrated larger amounts of cobalt in the surface structures than in the roots: and five out of every 15 plants accumulated more iron in their upper structure than in the roots. However, of all the elements, zinc was accumulated in the plant surface structures to the greatest extent. (R.V.J)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-023894
• OSTI ID: 4158761
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 133
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

BIOLOGY
BIOLOGY AND MEDICINE
CESIUM 144
CHEMICALS
COBALT 60
DIFFUSION
DISPERSIONS
DISTRIBUTION
IRON 59
LABELLED COMPOUNDS
LAYERS
NUMERICALS
PLANT CELLS
PLANTS
QUANTITY RATIO
ROOTS
SOILS
TABLES
TESTING
TRACER TECHNIQUES
ZINC 65