Open AccessINVESTIGATION OF RELATIONSHIP BETWEEN PINE (PINUS SYLVESTRIS L.) BIOMASS AND 137CS SPECIFIC ACTIVITY IN WOOD
Author(s) -
Donatas Butkus,
Ingrida Pliopaitė Bataitienė
Publication year - 2006
Publication title -
journal of environmental engineering and landscape management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.514
H-Index - 28
eISSN - 1822-4199
pISSN - 1648-6897
DOI - 10.3846/16486897.2006.9636890
Subject(s) - biomass (ecology) , pinus <genus> , environmental science , scots pine , woody plant , botany , zoology , forestry , horticulture , agronomy , biology , geography
The paper analyses relationship between pine (Pinus sylvestris L.) biomass and the specific activity of an artificial radio‐isotope 137Cs in wood. The specific activity of 137Cs was measured in the segments of pine (Pinus sylvestris L.) annual rings. The biomass of segments and the density of wood were estimated experimentally.It is determined that relationship between pine (Pinus sylvestris L.) biomass and pine age is not linear. In the variation of biomass are time when biomass grows slowly (25–55 pine age or 1959–1990 m. period).The specific activity of 137Cs in pine annual rings depends on the rapidity of biomass growth. The specific activity of 137Cs varied from 0,3 ± 0,1 to 13,4 ± 2,7 Bq/kg when the biomass grew rapidly and its average value was 4,3±1,1 Bq/kg. When the biomass grew slowly, the specific activity of 137Cs varied from 1,8 ± 0,7 to 20,6 ± 5,3 Bq/kg, and its average value was 9,6 ± 2,6 Bq/kg. Global pollution after nuclear explosions, pollution after the Chernobyl Nuclear Power Plant accident and uptake of 137Cs from roots had an influence on the specific activity of 137Cs in pine annual rings.