Wpływ gospodarki pasterskiej w Karpatach na skład florystyczny runi pastwiskowej
Journal Title: Łąkarstwo w Polsce - Year 2015, Vol 18, Issue
Abstract
The research was carried out since the early 70s of the last century on test mountain pasture of the Institute of Technology and Life Sciences in Jaworki (Szczawnica commune). The pasture is located in the hypsometric interval between 680 and 920 m a.s.l. and used by mountain sheep. The research concerned yielding and floristic changes of the pasture sward in conditions of various field locus, variable organic-mineral fertilization as well as variable intensity of use, expressed by livestock density per area unit.The pasture was analysed in two different altitude zones; below and above 800 m a.s.l. More advantageous floristic changes were registered in the lower zone. Poaceae, especially valuable species, increased their participation from 29.2% to 44.8%, whereas less valuable species were reduced from 14.4% to 9.9%. In the zone above 800 m a.s.l. the floristic changes were more noticeable in the group of mid-valuable Poaceae species that increased their participation from 22.4% to 35.5% as well as those of low value of which the participation was reduced from 34.5% to 18.1%. As regards high valuable Poaceae the changes were lower, i.e. from 11.3% at the beginning of the research to 17.0% at the end. Botanical-weight analysis was the base for assessment of quality of forage. It was concluded that in the lower pasture zone the utility value number of sward changed from 6.2 to 6.9 and in the higher from 4.6 to 5.3. Generally, despite total reduction of mineral fertilization, some minor but advantageous floristic changes were registered on the discussed pasture.
Authors and Affiliations
Stanisław Twardy
Keywords
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