Spring burning of meadows and wasteland vegetation makes every year a big problem associated with the risk of fire. The negative impact of fire on the ecosystem is also often stressed. In a field experiment located in the Prandocin village the influence of a controlled burning on selected elements of habitat and species composition of the meadow sward was investigated. The effect of fire was compared to mowing, mowing and removal biomass and lack of treatment. The highest maximum temperature during the burning (600 ° C) was recorded at a height of 15 cm, above soil surface, that is a short distance above the biomass. The temperature at the soil surface did not exceed 400 ° C and at a depth of 5 cm below the soil the temperature only slightly increased (up to 35 C °). There were no statistically significant differences of treatments in terms of yield and soil moisture measured two weeks after burning. However, the soil was heated significantly faster in plots burned and cut with the removal of biomass. The plant species composition did not differ significantly between treatments of the experiment. The main reason for the modest effect of burning may be a small ...
The work presents the data on the productive efficiency of water used for evapotranspiration by the sward of mountain grasslands. Mean grassland water productive efficiency for the vegetation period in the Małe Pieniny Mts. region fluctuates from 14.1 to 33.4 kg•ha-1•mm-1. The efficiency of water use under the discussed conditions is significantly influenced the amount of produced yield. Water was the least efficiently used by low-yielding sward. Water was the least effectively utilized by the low-yielding sward. Efficiency of water utilization by grasslands is growing with increasing yielding. Maintaining constant ground water level in the meadow habitats at the depth of 0.6m in the Pieniny region leads to a decrease in productive efficiency of water used for real evapotranspiration. ...
Vascular flora of the investigated plant associations is characterized by a considerable biodiversity, unique character and occurrence of protected and threatened species, therefore playing an important role in the natural environment and being an important element of shaping the natural landscape. The assessment of the requirements of edaphic species of the investigated associations allowed for a characterization of the soil habitat as soils with granulometric composition from rubble, scree and gravel to sandy loams and silt deposits. These are mainly moderately poor (mesotrophic) to poor (oligotrophic) soils, prevailingly alkaline (pH>7), dry or to a lesser extend fresh. Climatic conditions in the presented habitat are characterized by full or moderate insolation. They are thermally privileged areas or moderately warm. ...
