Dynamics of tree mortality in the Sudety Mts. in years 2002-2018 ; Vertical differentiation of the richness and species composition of the myco-, licheno- and briobiota of windthrow trees in Kampions Nationa Park ; Is the intrudition of coveres root seedlings in every renewal reasonable - phytopathological point of view ; Impact of meteorological contitions on the onset of the growing season over broadleaved forests in northeastern Poland ; Influence of Bacillus subtilis and Trichoderma asperellum on the development of birch seedlings infected with fine root pathogen Phytophthora plurivora ; Social needs and preferences in the field of leisure in protected areas - "Nad Tanwia" nature reserve case study ; Valuation of non-wood forest functions by a contingent method on the example of a tourist function.