|
|
Struktura sukcesních porostů a růstové vlastnosti břízy bělokoré (Betula pendula Roth) na exponovaném stanovišti
Bardoň, Karel
This bachelor’s thesis describes the structure of naturally occurring stands dominated by white birch (Betula Pendula Roth) on two exposed sites. The site marked as "Hlubočec" represents the situation of the Nizký Jeseník, the site marked as "Krásná" the situation of the Moravian-Silesian Beskydy. Both areas have been inventorised and described in terms of the growth potential of birch as well as the current presence of other tree species, including the so-called target species in the case of "Hlubočec". The growing potential was, as expected, in the more trophic site of Hlubočec. Here, there are target individuals of grown out European beech and forest oak, as well as relatively abundant occurrences of natural regeneration of Norway spruce, white birch, and occasionally also bird crane and European beech. The 'Krásná' site represents an area that has been neglected in the past, affected by erosion and degradation, where the birch tree mainly serves the function of soil protection and habitat restoration.
|
|
|
Rekonstrukce přípravných porostů podsadbami
Janák, Jakub
The aim of this thesis was comparing growing of beech plants in different conditions under preparatory stands of alder and birch on LS LČR Šternberk district. There were 15 sites (8 under alder stand and 7 under birch stand) on which were made in different ways mining interventions in preparatory stands. There were measured overall 7 parametres (total height of seedlings, seedling height of last year, increment per the last year, length and width of the leaf, root collar diameter and deflection of stem from the vertical axis). Based on weight rating was find out, that each one of preparing stands has different impact to underplanted cultures. Under birch preparing stand was best conditions find out at site, where was density of stand reduced to 30 %. Under alder preparing stand was the best conditions find out under preparing stand with full density. The worst conditions for underplanted cultures were find out at sites without preparing stand (at clearcuts).
|
guest ::
