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Primerjava različnih pristopov za prevzgojo izmenjanih in spremenjenih gozdov v Srednji Evropi : diplomsko delo (visokošolski strokovni študij)
Kelenc, Slavko (Author), Diaci, Jurij (Mentor) More about this mentor... This link opens in a new window

URLURL - Presentation file, Visit http://www.digitalna-knjiznica.bf.uni-lj.si/vs_kelenc_slavko.pdf This link opens in a new window

Abstract
Raziskava o prevzgoji spremenjenih in izmenjanih gozdov je potekala na teoretični in praktični ravni. V teoretičnem delu so bile preučene različne metode prevzgoje gozdov, ki se v Evropi uporabljajo. Naravno pomlajevanje je pomemben predpogoj za izvedljivost prevzgoje. V praktičnem delu je bilo analizirano pomlajevanje v gozdnem predelu Krašica, ki leži v gorskem vegetacijskem pasu Savinjskih Alp. Raziskava je bila omejena na rastiščni tip z gozdno bilnico (Festuca altissima All.) na rastišču Homogyno sylvestris-Fagetum. V štiri raziskovalne objekte je bil umeščen vzorec 83 raziskovalnih ploskvic kvadratne oblike. V tem sklopu je bilo obravnavanih več različnih gojitvenih pristopov (različne starosti vrzeli, različne velikosti vrzeli, ograjena površina, različno ukrepanje). Pokazali so se glavni vzroki prenizkih gostot pomladka: močna konkurenca zeliščne plasti, pomanjkanje semenskih dreves bukve (Fagus sylvatica L.) ter jelke (Abies alba Mill.), objedanje pomladka od velikih rastlinojedov in preskromne svetlobne razmere v malih sestojnih vrzelih. Ustrezna velikost sestojnih odprtin na preučevanem rastišču se giblje v razponu med 0,05 ha in 0,10 ha. Priporočamo kombinirano metodo prevzgoje (naravni pomladek + podsaditev želenih drevesnih vrst), posamično zaščito sadik listavcev in dosledno izvajanje nege.

Language:Slovenian
Keywords:spremenjeni gozdovi, metode prevzgoje, pomlajevanje, objedanje, površinska zaščita, semenska drevesa, podsaditev, nega
Work type:Undergraduate thesis (m5)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2010
Publisher:[S. Kelenc]
Number of pages:100 XI f.
Place:Ljubljana
UDC:630*22(043.2)=163.6
COBISS.SI-ID:3052454 Link is opened in a new window
Views:408
Downloads:181
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Secondary language

Language:Unknown
Abstract:
The research on the conversion of replacement forests was launched on the theoretical as well as the practical level. The theoretical part focused on different methods of conversion that are applied in Europe. Natural regeneration is an important prerequisite for the feasibility of conversion. The practical part analysed the regeneration in the forest district Krašica which is placed in the mountainous vegetational belt of the Savinja Alps (Slovenia). The research was based on the site type with Wood Fescue (Festuca altissima All.) at the site Homogyno sylvestris-Fagetum. A sample of 83 research squares was put into four research objects and different silvicultural approaches were handled (different ages of gaps, different sizes of gaps, exclosure, different silvicultural measures). Main causes for low densities of regeneration manifested themselves: a strong competition of the herbal layer, scarcity of seed-bearing trees by beech (Fagus sylvatica L.)and silver fir (Abies alba Mill.), browsing by large herbivores and insufficient light conditions in small stand gaps. The adequate size of stand openings on the investigated site varies between 0,05 ha and 0,10 ha. We recommend a combined method of conversion (advance regeneration + underplanting of desired tree species), individual protection of broadleaf saplings and consistent tending.


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