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1 2011

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Zróżnicowanie florystyczne wybranych alei gmin: Namysłów, Świerczów oraz Domaszowice na Dolnym Śląsku

Tomaszewska K., Bogdańska A.

Architektura Krajobrazu

2011

nr 1

27--31

One of the functions of roadside tree planting is biodiversity protection. The analysis often alleys from Lower Silesia region confirmed their floristic wealth. Nineteen tree species and five shrub species were recognized. Planted species forming alleys are predominant among sites was different, but two alleys attract an attention with their compositional arrangement: chestnut lane in Staroscin ended with a group of old, monumental oaks surrounding a historic figure, and two-part lane in Biestrzykowice. The cherry alley in Dąbrowa Namysłowska should be covered by a special care since there are less and less alleys of this type. Floristic diversity may be seen especially clearly in the case of roadside herbaceous plants. In all analysed sites 123 species of herbaceous plant belonging to 32 families were recognised. The number of individuals from particular families was varied. The most abundant were aster family (Asteraceae), blue grass family (Poaceae) and pea family (Fabaceae). High diversity is also confirmed by the fact that only two species were present in all ten alleys, while as much as 49% of species were observed once only. Among recognized species, the predominant are those characteristic for roadsides, however also another ones from neighbouring areas may be found. The alleys may also be a place of protected species occurrence bear's-garlic ( Allium ursinum) or ones characteristic for quite other kinds of sites triangle pink (Dianthus deltoides).