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Uspešnost sanacije vetrolomnih površin s setvijo na primeru GGE Kamnik : diplomsko delo - univerzitetni študij - 1. stopnje
Klemen, Klemen (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/dn1_klemen_klemen.pdf This link opens in a new window

Abstract
V diplomski nalogi so obravnavali tri objekte z različno pripravo tal ter zaščito mladja: 1) na prvem objektu so izvedli setev, pripravo tal, odstranitev panjev ter zaščito z ograjo, 2) na drugem objektu setev in zaščitoz ograjo, 3) na tretjem objektu pa setev in sadnjo, brez zaščite. Glavni cilji naloge je bil primerjati uspešnost umetne obnove s setvijo med objekti. V ta namen so postavili 260 raziskovalnih ploskev velikosti 1 m2, na katerih so ocenjevali splošne ekološke ter sestojne razmere. Rezultati so pokazali, da je nasemenitev najbolje uspela na objektu z izvedeno pripravo tal (45.750 dreves/ha), sledi drugi objekt (36.583 dreves/ha), medtem ko je na tretjem objektu nasemenitev slabo uspela (7.000 dreves/ha). Mladje je sestavljalo 18 različnih drevesnih vrst, najpogosteje sta se pojavljala smreka in rdeči bor. Potrdili so negativen vpliv pritalne vegetacije na pomlajevanje ter negativen vpliv oddaljenosti od semenskih dreves na nasemenitev. Zastrtost s pritalno vegetacijo je bila največja na tretjem objektu (67 %), na drugem je bila 47 % in prvem 26 %. Gostota nasemenitve se pri razdaljah večjih od 30 m od semenskih dreves značilno zmanjšuje, odprto paostaja vprašanje, zakaj so bile najbližje semenskim drevesom gostote mladja sorazmerno nizke. Primerjava stroškov setve in sadnje, je potrdila, da je setev ekonomsko ugodnejši način umetne obnove, ki pa ni primeren na južnih ekspozicijah in v razmerah močne zastrtosti s pritalno vegetacijo.

Language:Slovenian
Keywords:sanacija, vetrolomi, setev, Kamnik
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2012
Publisher:[K. Klemen]
Number of pages:VII, 42 str.
Place:Ljubljana
UDC:630*23(497.4 Kamnik)(043.2)=163.6
COBISS.SI-ID:3487654 Link is opened in a new window
Views:744
Downloads:140
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Secondary language

Language:Unknown
Abstract:
This bachelor thesis analyses three study objects which differ in site preparation and seedling protection. The treatments performed were as follows: 1) sowing, site preparation, stump removal, and seedling protection by fencing on the first site 2) sowing and seedling protection by fencing on the second site 3) sowing and seedling planting without seedling protection onthe third site. The main goal of the thesis was to evaluate the success of artificial regeneration by sowing. Within the sites 260 research plots of 1m2 in size were established, on which the general ecological and stand conditions were evaluated. Results show the best seeding success on the first object, where the site preparation was performed (45.750 trees/ha), followed by the second object (36.583 trees/ha), while the third object exhibited poor seeding success (7000 trees/ha). There were altogether 18 tree species presentamong the seedlings and saplings, with most frequent species being the Norway spruce and Scots pine. The results confirm negative influence of groundvegetation upon regeneration and negative influence of increasing distance from the seed tress upon the seeding success. Ground vegetation coverage was the highest on the third object (67 %) followed by 47 % coverage on the second object and the lowest (26 %) on the first object. The seedling density abruptly decreased at distances larger than 30 m form seed sources, while the lowest seedling densities in the direct proximity of the seed trees,remain unexplained. The cost comparison between sowing and seedling planting confirms that sowing is the favourable type of artificial regeneration in economic terms, whilst unsuitable for sites with southern exposition and abundant ground vegetation.


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