2 research outputs found
Cut mowing and grazing effects with grey cattle on plant species composition in case of Pannon wet grasslands
Examined area can be found at Balaton Uplands National Park (Hungary). 5 sample areas were
examined in Badacsonytördemic: 1: 32 hectare under-grazed pasture, 2: 38 hectare overgrazed pasture, 3:
34 hectare hayfield, 4: trampled area, 5: beaten track. Livestock population was 118 in the monitored
pastures. Sampling was executed along five 52m long circular transects, within 5cm Ă 5cm interlocking
quadrates. Based on the data we can state that the curve of the drinking area was the highest of speciesarea
examinations however weed appeared because of degradation which provided more species.
According to species-area examinations overgrazed areas were richer in species then other examined
areas. Based on diversity data drinking area considered degraded, while meadow and overgrazed areas
was considered as proper state. Diversity of meadow was larger, but dominance of economically useful
species was smaller. The amount of less valuable species â Carex hirta â increased
Change of composition and diversity of species and grassland management between different grazing intensity in Pannonian dry and wet grasslands
Investigations were carried out in wet and dry pasture. Coenological recordings were taken in
three zones. The first zone (âAâ) located 0-50 m near the stable, second zone (âBâ) located 50-150 m
from the stable, while the third zone (âCâ) located farther than 150 m. We have carried out analyses of
ecological and environmental factors and life form types. Based on our results for both dry and wet
grasslands, quadrates of âAâ zone were well isolated from the rest of the zones. Overgrazing, which
involves considerable trampling, vanishes differences among vegetations, thereby promotes weed and
disturbance tolerant rich vegetation. The lowest species number and diversity could be found here. Due to
the nitrogen enrichment due to the constant presence of livestock, drier and less heat demanding habitat
developed in the âAâ zones, according to the environmental indicators. Because of the change in
management, conservation and diversity values of âCâ zone increased, however, according to nature
protection values it underperformed compared to âBâ zone. According to the sample area, wet grasslands
from the sandy areas of KiskunsĂĄg, preserve nature protection values and grass composition better
moving away from stables, due to less grazing pressure. Drier backgrounds tolerate stronger grazing
pressure