Formalized classification of the vegetation of <Emphasis Type="Italic">Abies alba</Emphasis>-dominated forests in the Czech Republic |
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Authors: | Karel Boublík |
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Institution: | 1.Faculty of Environmental Sciences,Czech University of Life Sciences Prague,Praha 6 — Suchdol,Czech Republic |
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Abstract: | A phytosociological classification of silver fir (Abies alba) forests in the Czech Republic was carried out using the Braun-Blanquet approach. It is based on the formalized and supervised
Cocktail classification method. The definitions of associations were created by combinations of sociological species groups
using logical operators. Dominance of single species was included in the definitions of associations. All relevés with at
least 50% cover of silver fir in tree layer available from the Czech Republic were used for analysis. Three associations within
two classes were distinguished. Vaccinio vitis-idaeae-Abietetum albae (Vaccinio-Piceetea, Piceion excelsae) is an oligotrophic, species-poor spruce-pine-fir forest dominated by Vaccinium myrtillus in the herb layer occurring mostly on podzols. Luzulo-Abietetum albae (Querco-Fagetea, Luzulo-Fagion) is an oligo-mesotrophic spruce-fir forest characterized by the dominance of graminoids (Luzula luzuloides, Calamagrostis arundinacea) in the herb layer. It occurs especially on cambisols. Nutrient-demanding species are typical of the stands of herb-rich
mesotrophic Galio rotundifolii-Abietetum albae (Querco-Fagetea, Fagion sylvaticae, Galio rotundifolii-Abietenion) that occurs also mostly on cambisols. Soil nutrients and soil reaction (represented by Ellenberg indicator values) were
determined as the most important ecological gradients affecting the variation of the vegetation in these communities. |
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