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Soil microflora of spruce forests of the Bohemian Forest
Nováková, Alena ; Lukešová, Alena
Species composition and quantity of microalgae and micromycetes inhabiting soils of original spruce forest were studied in 3 localities of the Bohemian Forest (Trojmezná, Smrčina, Boubín) in years 2000-2003. Both intact plots, and those ones with selective tree cutting were compared in Trojmezná and Smrčina. In total, 46 species of algae and 72 taxa of micromycetes, represented by common soil species, were found in studied soils. Green algae (mainly Chlorophyceae and Charophyceae) prevailed both qualitatively and quantitatively among soil algae which was connected with low pH. All isolated micromycetes belonged to saprotrophic fungi. Total numbers of algal species ranged between 20-33 and total algal abundance between 48,1-4210,0 cells per g of dry soil in studied plots. Higher algal species richness was recorded in plots with selective tree cutting then in intact plots. Oposite trend of average total algal abundance was observed, despite big variations in particular sampling occasions. Numbers of taxa of saprophytic mycromycetes ranged between 32-40, lenght of mycelium between 6,1-84,5 m per g of dry soil, and numbers of CFU between 57,5-2413,4. No differences in species composition and quantity of saprotrophic micromycetes between intact plots and plots with tree cutting were found.

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