Asteretum lanceolati - A new xenospontaneous community on wet and riparian habitats
2011
Obratov-Petković, D., Faculty of Forestry, Belgrade (Serbia) | Bjedov, I., Faculty of Forestry, Belgrade (Serbia) | Skočajić, D., Faculty of Forestry, Belgrade (Serbia) | Đunisijević-Bojović, D., Faculty of Forestry, Belgrade (Serbia) | Đukić, M., Faculty of Forestry, Belgrade (Serbia) | Grbić, M., Faculty of Forestry, Belgrade (Serbia)
Invasive species Aster lanceolatus grows on moist habitats on the whole territory of Serbia. In Belgrade, this species is recorded with a higher degree of presence at a number of localities. With the aim to investigate the community in which this species is dominant, the wide area of Serbia was researched, and 8 localities on the territory of Belgrade were chosen for the analysis of the community. Floristic structure of the community was determined by the standard Braun-Blanquet method (1964), phytogeographical analysis was performed according to Gajić (1980, 1984), and determination of life forms according to Raunkier (Ellenberg , Mueller-Dombois, 1967). pH soil analysis and electric conductivity (EC) were performed at all investigated localities. It was established that the community dominates the moist habitats of Belgrade. It is composed of 104 species and among them Aster lanceolatus Willd., Cichorium intybus L., Agropyrum repens (L.) Beauv., Calystegia sepium (L.) R. Br., Cirsium arvense (L.) Scop., Symphytum officinale L. and Rumex obtusifolius L. are the most frequent. In relation to life forms, the community has hemicriptophytes character, and in relation to phytogeography Euroasian and Middle Europaean floral elements are dominant, with a high presence of cosmopolitan and adventive floral elements. On the locialities Veliko Ratno ostrvo (island) and Makiš, EC values point to the fact that the amount of nutrient in the soil is higher than at other localities.
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