|
|
Rekonstrukce přípravných porostů břízy bělokoré podsadbami
Souchová, Jana
The aim of the Dissertation Thesis was to assess the oak and fir tree seedling growth rate in the Deštná-Horákova Lhota, Bystřice nad Pernštejnem and Opatovec - Kukle areas. Measurements took place on 22 areas with various intensity release preliminary growth. The following parameters were measured: current height of the above-ground tree plant parts and its height in previous year, yearly growth rate, length of sideways growing tree parts, width of tree crown, height of dual and triple tree trunk parts, deflection of trunk from its vertical axis, width and length of leaf or needle, root neck diameter, multiple tree trunk, straightness of the trunk, multiple tree top, vitality of the plant, damages through animal bites or horn scrapings. It can be concluded that each variation results in different growth rate of the undergrowth. It has been found that the best growth rate under birch tree plants was achieved in a narrow strip of bare of the tree plant beds. The worst growth rate, on the other hand, was observed in the 0.5 tree trunk variation.
|
|
|
Porovnání růstu prostokořenného a krytokořenného sadebního materiálu
Souchová, Jana
The aim of the thesis was to compare and evaluate the growth of bare-rooted and rooted seedlings of the same tree species based on the findings. All trees compared and monitored in this work were planted in the same area of the cane, in 2016. The evaluation was carried out on 4 research areas, these areas are characterized by sets of forest types 2S (fresh beech oak), 6K (sour spruce beech), 6S (fresh spruce beech) and 7K (acid beech spruce). There are three species of woody species in these areas, namely Norway spruce (Picea abies (L.) Karst.), Douglas fir (Pseudotsuga menziesii (Mirb) Franco) and European beech (Fagus silvatica L.). On each plot, 100 individuals were subjected to measurement for each variant of planting material in the autumn of 2017, for which the following parameters were evaluated: losses, height of the overground part in 2016 (which was measured after the scar marking the last increment), height of the above ground part in 2017, increment in 2017, the length of branch growth in 2017, the width of the crown, the thickness of the root neck, the trunk deflection from the vertical axis, the length and width of the assimilation apparatus, the straightness of the stem, the vitality of the plant. Based on the results, the following conclusions were drawn: On the SLT 6K surface in the case of woody beech, the variant of planting material grew better. In contrast, barkless planting stock grew better in Douglas fir tree species. The Norway spruce tree then grew better in the rooted variant. In the overall assessment of the abovementioned factors, it can be stated that on the SLT 6K the rooted seedlings grow better. In the SLT 6S area, the species of beech was found to be better growing in the bare-root variant. The Douglas fir also grew better in the bare-rooted variant and Norway spruce was best grown in the rooted roots variant. The result is that the bare-rooted planting material grows better on SLT 6S. On the area of SLT 7K there was a better growth of the beech in the rooted variant, as well as the better overall results of the spruce in the openrooted variant. Douglas fir grew better on the area in the barefoot variant. To summarize the findings of the observation on SLT 7K, it can be stated that the better results are achieved and hence the growing of the rooted planting material. In the SLT 2S area, the results for the growth of beech wood were better in the bare-rooted variant; Douglas fir tree has not been evaluated for this area due to insufficient seedlings when setting up the research area.
|
guest ::
