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Changes of biodiversity and species composition of Molinia meadow depending on use method

100%

Kulik M.

Polish Journal of Environmental Studies

2014

tom 23

nr 3

This paper evaluates the influence of the use of methods of Molinia meadows in eastern Poland on changes in its biodiversity and species composition. Research was carried out in 2006-10 on Molinia meadows near Uściwierz lake, located in the Pojezierze Łęczyńsko-Włodawskie (Lake District). The studied complex was classified to [Selino carvifoliae-Molinietum] meadows. Meadows were used in a specific method: 1. 1-cut meadow (June), 2. 1-cut meadow (June) + grazing (August), 3. abandoned meadow (since 2000). The above-mentioned methods of use caused the transformation of the typical structure of Selino-Molinietum meadow. I observed the initial succession of forest associations with a large share of Salix rosmarinifolia and Betula pubescens on unused meadow. The highest share of the characteristic species of the Selino-Molinietum association was characterized by abandoned meadow.

Assessment of biodiversity in Molinia meadows in Kampinoski National Park based on biocenotic indicators

72%

Kacki Z., Michalska-Hejduk D.

Polish Journal of Environmental Studies

2010

tom 19

nr 2

351-362

Communities of purple moor-grass meadows are generally decreasing. Many important problems of classification and phytogeography are connected with them. The main goal of the present study was to evaluate changes in species diversity that took place after mowing of Molinion meadows in Kampinoski National Park was discontinued from 1993 to 2006. Selected Molinion meadows in the park were evaluated in terms of their biological diversity. The data collected represented meadows that were still maintained, as well as meadows that had been abandoned at different times in the past. Biodiversity was evaluated using standard ecological indices and Disturbance Index (Z). In general, the Disturbance Index showed an increase in plant community forms that were abandoned or invaded by alien species. An association that was most like the typical form was seen in well maintained meadows, which suggests that the Disturbance Index continually rises with time after a meadow is abandoned. Ecological strategies and mowing tolerance were determined with the help of the BIOLFLOR database. Numerical classification revealed a highly diverse pattern of variability in the meadows examined. Correlations between ecological indicators and phytocenotic variability in Molinion meadows were also evaluated. Unmanaged meadows were compared to meadows in which meadow conservation management practices were carried out.

Ograniczanie wyników

2 Polish Journal of Environmental Studies

1 Kacki Z.

1 Kulik M.

1 Michalska-Hejduk D.

1 2014

1 2010

Wyniki wyszukiwania

Changes of biodiversity and species composition of Molinia meadow depending on use method

Assessment of biodiversity in Molinia meadows in Kampinoski National Park based on biocenotic indicators