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Posouzení zdravotního stavu a dendrometrických charakteristik Kočárové aleje, Frýdlant
Soukup, Vojtěch
ABSTRACT The assessment of health condition and dendrometric characteristics in Kočárová alej (Carriage alley) in Raspenava. The aim of this work is the assessment of health condition of an alley in Raspenava, the detection of main insect pests and tree diseases and a subsequent comparison with the assessment of relicts of felling of this alley. Trees planted along roads by our ancestors are integral parts of our landscape. Carriage alleys were in the past planted in particular for an improvement of the transport of carriages. However, the development of transport caused that alleys are currently considered to be obstacle or hazardous to still increasing automobile transport. This problem is in extreme cases solved through felling of old trees and their replacement with a new planting pursuant to valid standards concerning the distance of trees planted along communications. However it often results in breach of planned compensatory planting due to an excessive interference with plots neighbouring with the communication. The aim of this work is the assessment of the necessity of performed intervention in relation to the health condition of trees.
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Mortalitní faktory provázející odumurání jasanů v důsledku infekce nekrózou jasanů Hymenoscyphus fraxineus v oblasti podhůří Orlických hor.
Vágner, Filip
This bachelor thesis deals with necrosis of ash caused by pathogenic fungus Chalara fraxinea. The work contains summarized informations about phenology, bionomy and charakteristic symptoms which were used during the practical research. Next part of the thesis -- the practical research itself -- is focused on charting of intensity and spreading direction of the disease in one specific forest section. In this part are also mentioned possible factors, which could modify (accelerate or restrict) the growth of the fungus in specific cases. Than, in the last part, are walorized financial damages caused by this pathogenic fungus and suggested some interventions, which can contribute to survival of ashes in the forests.
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Nekróza jasanu Chalara fraxinea - fenologie, bionomie, charakteristika symptomy, rozšíření v oblasti podhůří Orlických hor
Vágner, Filip
This bachelor thesis deals with necrosis of ash caused by pathogenic fungus Chalara fraxinea. The work contains summarized informations about phenology, bionomy and charakteristic symptoms which were used during the practical research. Next part of the thesis -- the practical research itself -- is focused on charting of intensity and spreading direction of the disease in one specific forest section. In this part are also mentioned possible factors, which could modify (accelerate or restrict) the growth of the fungus in specific cases. Than, in the last part, are walorized financial damages caused by this pathogenic fungus and suggested some interventions, which can contribute to survival of ashes in the forests.
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