Ecological analysis of sown grasslands in lowland regions of Slovakia
1995
Holubek, R. | Pospisil, R. | Slamka, P. (Vysoka Skola Polnohospodarska, Nitra (Slovakia))
Temperature and moisture supply of sown grasslands depending on altitude in lowlands of Slovakia were analyzed. As an integral index of temperature conditions of grasslands, the sum of temperatures during observed period (the 1st April to the 31st October) was applied. Moisture conditions were tested according to the individual districts and altitudes. Temperature supplied to grasslands (2,898 to 3,443 degrees C) during grazing period does not appear to be a limiting factor of the phytomass production. The values of irrigation coefficient fluctuate from 0.77 to 1.77 in evaluated stands. The driest region is western Slovakia. In the course of 1991 to 1995, we registered 151 tropical days and 407 summer days. The stands up to 250 m of altitude have permanent moisture deficiency. The stands above 251 m do not have permanent moisture supply and in dependence on moisture balance of the year they relatively good conditions for sown grasslands growing and their utilization by animal grazing.
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