Vegetation of the selected forest stands in Polish Carpathian Mountains – changing in time
2008
Godzik, B., Polish Academy of Sciences, 31-512 Kraków (Poland). Institute of Botany | Grodzińska, K., Polish Academy of Sciences, 31-512 Kraków (Poland). Institute of Botany
In the Carpathian Mountains within the framework of the two international cooperative projects carried out in the years 1996 and 1999 26 permanent study sites were established for description of forest vegetation in the vicinity of ambient ozone monitoring sites. Six of monitoring sites were located in southern part of Poland in forest ecosystems typical of each area. Five of them were located in national parks, and one in area of protected landscape. Phytosociological records were done in 1998 in each of the monitoring plots in 5 subplots (5x500 square m) using the Braun-Blanquets method. In 2005 in the frame of the international cooperative project Biodiversity re-assessment and evaluation of trends in 26 forest sites in Carpathians the phytosociological records in all forest permanent plots were repeated. The study sites located in Poland represented various types of forest: Picea abies (Norway spruce) stands (3), Fagus sylvatica (European beech) stands (1), Abies alba (white fir) stands (1) and mixed Fagus sylvatica-Abies alba (1). In three monitoring sites (Brenna, Babia Góra NP, Tatra NP) the cover of tree layer during the period from 1998 to 2005 changed essentially due to cutting and strong windfall. In the Babia Góra NP forest stand the number of plants decreased (from 42 to 28), in Tatra NP was similar (53-54), and in Brenna increased (from 38 to 55). In other three investigated sites (Pieniny NP, Magura NP, Bieszczady NP) only small changes in plant composition were noticed in 2005 in comparison to 1998.
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