izpis_h1_title_alt

Vpliv svetlobe na razrast bukovega mladovja v gospodarskem gozdu in pragozdu na dinarskih jelovo-bukovih rastiščih Kočevskega Roga : magistrsko delo
Roženbergar, Dušan (Author), Diaci, Jurij (Mentor) More about this mentor... This link opens in a new window, Brus, Robert (Co-mentor), Batič, Franc (Reviewer)

URLURL - Presentation file, Visit http://www.digitalna-knjiznica.bf.uni-lj.si/md_rozenbergar_dusan.pdf New window

Abstract
Raziskave bukovega mladovja različne starosti smo opravili v pragozdnem rezervatu Rajhenavski Rog in na primerljivih rastiščih v gospodarskih sestojihv gozdnogospodarskih območjih Kočevje in Novo mesto. Raziskavo smo opravili v sestojnih vrzelih z mladovjem, praviloma ne višjim od 2 m, in obravnavali vrzeli velike od 200 do 1200 m2. Na vsaki raziskovalni ploskvi znotraj vrzeli smo merili in ocenjevali različne parametre in med njimi tudi obliko razrasti terminalnega poganjka (enoosen, rogovilast ali metlast) ter obliko razrasti celotnega osebka bukovega mladovja (enoosen raven, deformacijastebla ali plagiotropen). Na vseh točkah smo izmerili svetlobo. V vrzelih srednje vrednosti relativne svetlobe niso presegale 17 %, pod zastorompa so bile okoli 3 %, kar je blizu minimuma, ki še omogoča nemoten razvoj pomladka. Z vidika bodoče kakovosti bukovih dreves so najbolj neugodne metlasta in rogovilasta razrast glavnega poganjka, ter plagiotropna razrast celotnega osebka bukovega mladja. Delež osebkov z metlasto razrastjo glavnega poganjka se povečuje, osebkov s plagitropno razrastjo pa zmanjšuje, s povečevanjem vrednosti relativne direktne in razpršene svetlobe. Med deleži posameznih tipov razrasti osebkov bukovega mladovja razlik med gospodarskim gozdom in pragozdom nismo ugotovili. V obeh primerih je okoli 40 % vseh osebkov imelo neugodno razrast, kar ob zadostni gostoti in predpostavki, da nidrugih izrazitih neugodnih dejavnikov, ki bi povečevali smrtnost osebkov bukovega mladovja, ne pomeni izrazitega problema pri negi mlajših razvojnih faz.

Language:Slovenian
Keywords:ekologija pomlajevanja, Fagus sylvatica, bukev, Abies alba, bela jelka, svetloba, pragozdovi, sonaravno gojenje, morfologija, oblika krošnje
Work type:Master's thesis (m2)
Tipology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Year:2007
Publisher:[D. Roženbergar]
Number of pages:X, 107 f.
Place:Ljubljana
UDC:630*18+630*22(043.2)=163.6
COBISS.SI-ID:2121126 Link is opened in a new window
Views:665
Downloads:148
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share: Bookmark and Share

Secondary language

Language:Slovenian
Abstract:
We conducted the study in the Rajhenavski Rog forest reserve, an old-growth beechfir dominated stand, and adjacent managed stands in the Dinaric mountain region located in the south-eastern part of Slovenia. From 2000-2002, we measured radiation and branching type of 1953 dominant beech seedlings on 531 plots established in gaps and locations under the canopy. The results showed that in gaps larger than 500 m2, radiation levels were higher and more variable in the managed forest. While light conditions significantly influenced beech seedling architecture, no major differences were found between the managed and old-growth forest. The probability of broom shaped beech seedling tops increased, while the probability of plagiotropic branchingdecreased with increasing radiation. In all cases around 40 % of seedlings showed undesirable branching types, which should leave enough quality seedlings for normal development of a high-quality stand. With this inmind, we can say that selective management in beech-fir forests, if practiced intensively and with special care for young beech trees with desirable architecture, can provide good economical results and high quality beech timber.


Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back