Fate of air pollutants in spruce and beech stands on permanent plots in Brenna - the Silesian Beskid

Staszewski, T., Kubiesa, P. 2008: Fate of air pollutants in spruce and beech stands on permanent plots in Brenna – the Silesian Beskid. – Beskydy, 1 (1): 77–84 A er a long term pressure of industrial emissions and biotic and abiotic stresses in the recent years a dieback of Beskidian spruce forests has been observed. Therefore artifi cial spruce stands reconstruction towards the introduction of native tree species like beech and fi r is required. The paper presents the diff erences in fate of acidic compounds and nutrients deposited to spruce and beech stands in Brenna. Concentrations of ions in bulk deposition, throughfall and soil solutions were determined. Loads of all ions in throughfall of both tree species were higher than in bulk deposition; this was more pronounced for spruce stand. Higher fl ux of acidity reaching the soil in spruce stand is manifested by lower pH, higher concentration of sulfates and lower concentration of calcium and magnesium in soil solutions when compared to beech stand.