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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Mapping of the vegetation development of herbaceous cover in mountain spruce forests in the Giant Mountains with using GIS.
ČIHÁK, Jan
Mountain forests are an important part of the landscape in our country. In the last three decades they were seriously damaged by anthropogenic influence, especially immissions. The immissions make worse the health status of forests, which cause changes in a structure of flora, in which the health status of forests is reflected. The main goals of my work were to map the cover of herbal and mossy layers in two permanent research plots in the Giant Mountains ( Alžbětinka, Modrý důl), to create maps of herbaceous cover and to digitize them and to compare these maps with the extent in years 1993-1994 by using a developing analysis in GIS. Detailed vegetation maps of the both permanent research plots by whose processing (by digitizing and static evaluation) some important changes were found out in dominant soil cover categories were the main outputs of the work. In the first research plot Alžbětinka, decline of the grass Calamagrostis villosa and increasing of Vaccinium myrtillus cover were evident. In the second research plot Modrý důl, decline of both investigated species, Avenella flexuosa and Calamagrostis villosa, was observed .
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