CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS
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CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS |
RUSSIAN ACADEMY OF SCIENCES |
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V.N. Vtorova, L.B. Kholopova Content of Microelements in Needles of Norway Spruce in Moscow Region // Forest Science (Lesovedenie). 2013. No 2. С.71-77. The results on the variability of the Be, Bt, Cd, As, Te, Sb, Sc, Cr, Li, Y, Co, Mo, V, Ni, and Pb contents in Picea abies L. needles of 35-year-old plantations (Moscow region) are presented. Using the multivariate analysis, indices of maximum variation of Ni, Pb, and V concentrations have been obtained pointing to their more active participation in the metabolism of young needles. Based on the results of the cluster analysis, some specific features in the structure of the elemental composition have been revealed. Elements with cationogenic (Pb, Ni, Li, Co, and Sr) and anionogenic (V, Mo, and Cr) properties are combined in separate clusters. The content of some elements in 1- and 2-year-old is similar; with age, the variation of their content increases. Picea abies plantations, spruce needles, variation of heavy metal and rare earth contents, method of principal components, cluster analysis.. |
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