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Stan zachowania populacji zawilca wielkokwiatowego Anemone sylvestris L. na Górze Wał we Mstowie

Majchrzak B., Harast A.

Chemistry, Environment, Biotechnology

2015

Vol. 18

11--18

The research comprised the xerothermic grasslands communities on the southern slope of Góra Wał situated on the right bank of the Warta river in Mstów. A floristic list of all vascular plant species was made. In order to define the type of the phytocoenoses 3 phytosociological survey was made according to the Braun-Blanguet method, each covering an area of 25 m2, situated in the upper, middle and lower part of the slope. To determine the density of the Anemone sylvestris population the research area was segmented with a 1 × 1 m square grid, in which Anemone sylvestris specimens were counted and broken into flowering, fruiting and barren once. The average density of specimens per 1 m2 is 36. It was observed that overdevelopment of Brachypodium pinnatum L. limits the occurrence of Anemone sylvestris. Numerous Anemone sylvestris specimens were found beneath the tree canopy, were the Brachypodium pinnatum cover is lesser. The condition of the Anemone sylvestris population can be described as good. Its specimens flower and have fruit every year. In the recent years an increased share of Anthericum ramosum in the species composition has been observed. In order to maintain the Anemone sylvestris population and other species found in the grassy areas, preservative actions should be continued, consisting in removing tree and shrub sapling which enters the grass areas, and what is most important, in re-introducing sheep on an extensive scale, which will limit the overdevelopment of Brachypodium pinnatum. Xerothermic grasslands communities on Góra Wał in Mstów should be transformed into a nature reserve because it is a home for many regionally rare, precious and protected plant species.