The thesis characterized condition and dynamics of subboreal forest spruce association Querco-Piceetum in the Kozienice forest, in south area of occurrence of spruce in Poland. The results of research were compared with the data obtained by R. Zaręba research (1953-1965). Comparisons were made of: the composition and structure of association, the share of groups of species connected with class of associations and with indicator values of vascular plants. Suggestions of forest planning are presented in phytocenosis of Querco-Piceetum in the Kozienice Promotional Complex.

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