magistrsko delo
Ambrož Blažko (Avtor), Jurij Diaci (Mentor), Mitja Ferlan (Komentor)

Povzetek

V magistrski nalogi je predstavljena uspešnost setve v različnih položajih šestih eksperimentalnih sestojnih vrzeli v visokogorskem smrekovem gozdu. Vrzeli so bile velikosti 25 arov, položaji ploskev so bili razporejeni gleda na glavne štiri smeri neba, na središče vrzeli in pod zastorom. V letu 2018 so bila posejana semena različnih drevesnih vrst ter posneta svetloba in naklon. Prvo štetje semenk je bilo izvedeno spomladi 2019, drugo pa naslednjo pomlad. Razvoj mladja je bil analiziran v povezavi s spremenljivostjo ekosistemske mikroklime ozračja, talnimi razmerami in mikroreliefom. Rezultati so pokazali, da je uspešnost setve odvisna od drevesne vrste, naklona in svetlobe. Najuspešnejši vrsti po deležu preživetja sta jelka (100 %) in bukev (88 %). Obe bolje uspevata ob robu vrzeli, kjer je manj svetlobe. Za bukev je izrazit negativen vpliv naklona, podobno je tudi pri macesnu, s tem da slednji potrebuje tudi več svetlobe. Zaradi neznanega vzroka je smreka edina, ki se je dobro razvijala na sredini vrzeli. Plenilci semena so bili pomemben zaviralni dejavnik preživetja vseh vrst, še posebej pa bukve in hrasta. Ameriška duglazija ima, tako kot večina ostalih vrst, težave z naklonom in konkurenco pritalne vegetacije. Raziskava je nakazala, kje so možnosti za izboljšanje uspeha setve.

Ključne besede

setev;sestojna vrzel;visokogorski gozd;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 2.09 - Magistrsko delo
Organizacija: UL BF - Biotehniška fakulteta
Založnik: [A. Blažko]
UDK: 630*23(043.2)=163.6
COBISS: 70963971 Povezava se bo odprla v novem oknu
Št. ogledov: 274
Št. prenosov: 34
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Sowing success within different positions of canopy gaps of high mountain spruce forest
Sekundarni povzetek: In the master's thesis, the success of sowing in different positions of six experimental canopy gaps in a high-mountain Norway spruce forest is presented. The gaps were the size of 0.25 ha, the positions of the plots were arranged according to the four main directions of the compass, the center of the gap and under the canopy. In 2018, the seeds of various tree species were sown, and the light and slope inclination were recorded. The first seedling count was performed in spring 2019 and the second was performed the following spring. The development of seedlings was related with the variability of the microclimate, atmosphere, soil conditions and micro-relief. The results showed that sowing success depended mainly on tree species, slope inclination, and light. The most successful species in terms of survival rate were fir (100%) and beech (88%). Both thrived better at the gap edges where there is less light. A distinct negative effect of inclination was noticed for beech, as it was the case with larch, except that the latter also required more light. Spruce was for unknown reason, the only species that developed relatively well in the gap center. Seed predators have been an important inhibitor of the survival of all species, especially beech and oak. Douglas fir, like most species, had problems with the slope inclination and competition of ground vegetation. Research has indicated some guidelines to improve the sowing success.
Sekundarne ključne besede: direct sowing;canopy gaps;high mountain forest;
Vrsta dela (COBISS): Magistrsko delo/naloga
Študijski program: 0
Konec prepovedi (OpenAIRE): 1970-01-01
Komentar na gradivo: Univ. Ljubljana, Biotehniška fak., Oddelek za gozdarstvo in obnovljive gozdne vire
Strani: VIII, 35 f., [1] f. pril.
ID: 13137077