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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Stav obnovy lesa po vichřici Emma na lesní správě Lanškroun - revír Letohrad
 Černohousová, Jana
The main objective of submitted thesis was the assessment of the state and a development of forest regeneration of selected areas devastated by the wind caused by the wind disturbance Emma in 2008 in the hunting ground of Letohrad (Forest management Lanškroun). The state of recovery has been analyzed based on registration documents and a field survey. Furthermore, the analysis in the area of interest has been performed focusing on the growth of Norway spruce and a common fir in different microclimate conditions. Next it was monitored which species grows out the most in extreme conditions of clearing area. Another part of the piece dealt with the costs of sites regeneration. Based on the results, the aim of the thesis was to optimize the process of regeneration of disturbed sites in the area of interest. At selected sites of Letohrad area were identified the biggest issues connected to Norway spruce and a common fir planting. Among the main limiting factors were recognized unsuitable choice of site, extreme climatic conditions, weed infestation and a high amount of game. Spruce and fir had the most significant increment in the sites of small area element character. Planting of spruce in the third altitudinal forest zone did not increment well and was visibly lagging. On the contrary, an oak followed by a beech thrived under the same conditions. The highest costs were identified at problematic, still not established disturbed area of 309G11.
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Možnosti využití nového růstově stimulačního organického přípravku a jeho variant, pro eliminaci vývoje Chalara fraxinea
 Černohousová, Jana
Pathogen Chalara fraxinea, one of the causes wasting of ash, is currently one of the most serious enemy of ash. At first, in this thesis there were summarized knowledge about Chalara fraxinea and related topics. There were addressed two main research directions. The first direction led us to the laboratory, in vitro there were addressed response of mycelium Chalara fraxinea to applied organomineral products. The second direction was concentrated in the ash stands, there were applied the same products as in the laboratory, but the products were applied on leaves of ash trees. There were examined the efficacy of products based on health assessment ash. The results should help in the fight against Chalara fraxinea.
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