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Naravna obnova gozdnih sestojev po vetrolomu na Jelovici
Ščap, Špela (Author), Klopčič, Matija (Author), Bončina, Andrej (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-D2JXHCZS This link opens in a new window

Abstract
Leta 2006 je orkanski veter podrl 125 ha pretežno enomernih smrekovih debeljakov na Jelovici. Na tej površini smo dve in pet let po vetrolomu na 81 sistematično razmeščenih vzorčnih ploskvah (posamezna meri 16 m2) analizirali prisotnost, obilje in strukturo naravnega mladja ter vpliv rastiščnih in sestojnih dejavnikov na naravno obnovo. Odstotek ploskev brez mladja se je med popisoma zmanjšal s 30 % na 11 % celotnega števila ploskev. Leta 2008 je bila povprečna gostota mladja 7.955 osebkov na hektar, leta 2011 pa 9.660. V mladju je prevladovala smreka s 46 %, vendar se je v opazovanem obdobju opazno povečal delež listavcev. Vplivne dejavnike pojava mladja na ploskvi smo proučevali z binarno logistično regresijo, spremembo gostote mladja pa s posplošenim linearnim regresijskim modelom. Pomembni vplivni dejavniki so razdalja ploskve do najbližje zaplate gozdnega sestoja, opad listja in ekspozicija.

Language:Slovenian
Keywords:gozdovi, naravne motnje, vetrolomi, naravno mladje, sanacija, Jelovica
Work type:Scientific work (r2)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2013
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije
Number of pages:str. 195-212
Numbering:Letn. 71, št. 4
UDC:630*23:630*42(497.4Jelovica)(045)=163.6
ISSN on article:0017-2723
COBISS.SI-ID:3616166 Link is opened in a new window
Views:561
Downloads:151
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Record is a part of a journal

Title:Gozdarski vestnik
Shortened title:Gozd. vestn.
Publisher:Zveza gozdarskih društev Slovenije
ISSN:0017-2723
COBISS.SI-ID:3736834 This link opens in a new window

Secondary language

Language:English
Title:Natural regeneration of forest stands after windthrow on the Jelovica Mountain
Abstract:
In 2006 a hurricane blew down 125 ha of mostly mature even-aged spruce stands on the Jelovica plateau. Two post-windthrow inventories of regeneration were executed two and five years after the windthrow. Presence, abundance and composition of natural regeneration were surveyed on 81 plots of 16 m2 each. The proportion of plots without natural regeneration decreased from 30 % in 2008 to 11 % in 2011. The average abundance of regeneration was 7,955 individuals per hectare in 2008 and 9,660 individuals per hectare in 2011. In tree species composition spruce predominated with 46 %, but the proportion of broad leaves increased substantially in the observation period. Additionally, the impact of site and stand factors on regeneration was examined; influential factors of natural regeneration occurrence were investigated using a binary logistic regression, while influential factors of changes in regeneration density were examined using a generalized linear regression model. Among many influential factors, the analyses exposed the distance to the nearest stand, aspect/sun exposure, and the portion of leaf-litter on a plot.


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