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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Model přežívání smrku ztepilého v podmínkách gradace lýkožrouta smrkového
 ONDŘICHOVÁ, Nikola
As a result of the gradation of the bark beetle, there is often extensive damage to spruce stands. Although not only damaged but also healthy stands are attacked during massive gradation, there are individuals who survive this gradation. The aim of this thesis was to determine which selected environmental variables affect the survival of trees in the conditions of gradation of the bark beetle. The area of interest of my thesis was the Březník area, located in Šumava. The evaluation showed that a strong effect increasing the probability of stands survival was manifested in the variable containing edaphic categories, especially in the edaphic category of the 9th class. This class represents a waterlogged permanently wet area, which increases the probability of vegetation survival and largely corresponds to humidity conditions. The distance to the natural edges of the stand also contributes to the increasing probability of survival. This thesis can be useful with its results and conclusions in the field of forest management.
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Vliv environmentálních faktorů na přežívání smrku ztepilého v oblastech rozpadu horských smrčin v důsledku lýkožrouta smrkového
 ONDŘICHOVÁ, Nikola
In the first part of this study, I attempted to classify and describe factors, that could increase the resistence of Norway spruce against a bark beetle attack. I tested the impact of selected factors on the survive of Norway spruce in the forest decay compared to live forest in the second part of this study.
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