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Accumulation properties of Norway spruce (Picea abies) for different radionuclides

100%

Tomankiewicz E. , Mietelski J. , Gaca P. , Błażej S.

Nukleonika

2006

tom Vol. 51,suppl.2

59-67

The paper presents results for the 137Cs, 90Sr, 40K activity concentrations and 228Th/232Th, 230Th/232Th activity ratios in several samples needles from two Norway spruce (Picea abies) trees and two soil samples collected in the Tatra Mountains (Poland) area. Activities for artificial 137Cs and 90Sr show moderate values. Statistically different values were found between the mean concentration of 90Sr and 137Cs in current (C) and two years old (C+2) needles of the first tree, whereas for potassium no significant difference was observed. For the second, fallen tree, no significant difference between the mean activity concentration in needles for C+1 and C+2 was found for each radionuclide, but much lower levels of 137Cs contamination were observed. Observed values of the aggregation coefficients for 137Cs and 90Sr are presented.

Wood radial cyclic heterogeneity of Norway spruce (Picea abies (L.) Karst.) derived from ripening stands

84%

Giefing D. F. , Pazdrowski W. , Splawa-Neyman S. , Jelonek T. , Tomczak A.

Electronic Journal of Polish Agricultural Universities. Series: Forestry

2005

tom 08

nr 4

Biometric characterisation of selected seed stands of Picea abies (L.) Karst. of Istebna

67%

Orzel S. , Forgiel M.

Dendrobiology

2004

tom 51 Supplement

The paper assesses the growth of nine seed stands of Picea abies (L.) Karst. of Istebna. The stands were selected on the basis of the dynamic height growth and good adaptation of their progeny under different site conditions. The d.b.h. increment of trees during the entire lifespan of stands is analysed in detail, especially its magnitude and dynamics during the last twenty years, i.e. from 1982 to 2001.

Oribatid fauna [Acari: Oribatida] in fallen spruce trees in the Babia Gora National Park

67%

Skubala P. , Sokolowska M.

Biological Letters

2006

tom 43

nr 2