| Abstract [eng] |
The work presents specific features of phytocenoses structure of abandoned beaver ponds in Zemaitija National Park and comparative analysis with natural meadows in Nemunas delta and Minija river coasts. Botanical composition of plants communities was determined using De Vries method (Peeters, 1990), taking 30 handfuls of plants and evaluating them. The scale of H. Ellenberg (1992) was used to decide plants species attachment to hydrological regime, soil reaction, and trophical features of abodes. Coefficients of Sörensen (Magguran, 1992) and Jaccard (Jaccard, 1901) were used to express floristical similarity of communities. Specific features are characteristic for early succession stage of phytocenoses in wet topes and can be explained by higher soil dampness, acidity and nutrition. |
