VEGETATION STRUCTURE AND ABOVEGROUNDBIOMASS AT MOUNT SALATIN LONG-TERMECOLOGICAL RESEARCH SITE, THE WEST TATRAMTS, SLOVAKIA

摘要

Halada L., David S., Halabuk A.: Vegetation structure and aboveground biomass at Mount Salatinlong-term ecological research site, the West Tatra Mts, Slovakia. Ekologia (Bratislava), Vol. 28,No. 2, p. 113-126, 2009.A detailed characteristic of vegetation in the long-term ecological research site using quantita-tive methods is provided. Plant species composition, frequencies and aboveground biomass of 25research plots are reported. Additionally, inter-species relations and spatial pattern of vegetationare analysed.Plant community at Mt. Salatin research site belongs to the association Juncetum trifidi Szaferet al. 1923 em. Kr aj in a 1933 (alliance Juncion trifidi K raj i n a 1933). Main dominants arerepresented by Oreochloa disticha, Festuca supina and Cetraria islandica, that are evenly distri-buted throughout the plots with mean frequencies of 39%, 38% and 57% respectively. Significantcorrelations have been detected between several species what might imply their competition orcoexistence. The mean aboveground biomass of vascular plants at Mt. Salatin was estimated to 109.4g.m~(-2). At plot level, grasses (91.02 g.m~(-2)) andJuncus trifidus(32.52 g.m~(-2)) account for substantialproportion of the biomass. Values of constancy, frequencies and biomass amount together with ananalysis of the spatial pattern contribute to a complex understanding of the vegetation structureat Mt. Salatin research site.