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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Identifikace a posouzení faktorů ovlivňujících okamžité tlaky v půdním profilu vyvolané přejezdy vyvážecího traktoru
 Mutina, Michal
In forestry are used heavy wheeled machines which create noticeable pressure on the soil by landing gear. Traversing machines cause damaging roots, root swellings and especially soil compaction. This thesis deals with the assessment and comparison of factors affecting the immediate pressures in the soil profile caused by crossing forwarders. Two machines are considered, the first one with load capacity 5t and the second one with load capacity 12t. The technical features of the machine, tire width, tire inflation rate and technological influences, putting brushwood on the path of crossing forwarder were assessed. The results indicate that the use of logging residues on the path of forwarder effectively reduces the immediate pressures in the soil.
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Zhodnocení vlivu václavek na stabilitu sekundárních smrkových porostů na LS Ruda nad Moravou, revír Brníčko ve vztahu k aktivizaci podkorního hmyzu
 Mutina, Michal
The thesis is focused on the proportion of salvage felling caused by Armillaria, selected according to age classes and is also focused on the bark beetles, which colonize infected trees. Armillaria infestation is very acute in the selected area of LS Ruda nad Moravou, the district of Brníčko. A part of the thesis is an evaluation of the influence of abiotic factors on the activation of Armillaria and bark beetle, their species spectrum in the selected territory. The results show that the high temperature and lack of precipitation cause physiological weakening of trees, which are susceptible to Armillaria attacking and bark beetles.
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