Analiza sprememb gozdnih sestojev na hribu Boršt zaradi vpliva naravnih motenj : diplomsko delo - visokošolski strokovni študij - 1. stopnja

Arh, Nuša (author), Bončina, Andrej (mentor), Klopčič, Matija (comentor)

Slovenske gozdove vse pogosteje prizadenejo abiotske in biotske motnje. Analizirali smo spremembe gozdnih sestojev zaradi motenj in gospodarjenje z gozdovi na hribu Boršt (129,98 ha). Gozdove tega območja so v zadnjih letih prizadele številne ujme, in sicer snegoloma v letih 2007 in 2008, vetroloma 2010 in 2011 ter ţledolom leta 2014. Po ujmah je prišlo do gradacij podlubnikov. Analizirali smo podatke o gozdnih sestojih in gospodarjenje z gozdovi v obdobju 2005%2014. S primerjavo digitalnih sestojnih kart iz let 2004 in 2014 smo ugotavljali spremembe razvojnih faz. Spremembe sestojev smo ocenjevali tudi z analizo lesne zaloge, drevesne sestave in pomlajevanja, gospodarjenje pa s posekom, umetno obnovo in gradnjo gozdnih prometnic. Glavne ugotovitve so bile: 1) lesna zaloga se je v povprečju zmanjšala za 100 m3/ha, 2) posek je bil petkrat večji od načrtovanega, 3) deleţ mladovja v skupni površini se je povečal od 2 % na 19 %, 4) zgradili so 12,8 km gozdnih prometnic.

• Language: Slovenian
• Keywords: naravni dejavniki, gozdni sestoji, razvoj gozdov, posek, ujma, etat, golosečnja
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [N. Arh]
• Year: 2016
• Number of pages: VIII, 39 f.
• PID: 20.500.12556/RUL-115021
• UDC: 630*22:630*4(043.2)=163.6
• COBISS.SI-ID: 4640166
• Publication date in RUL: 08.04.2020

Secondary language

• Language: English
• Title: The analysis of changes in forest stands on a hill Borsš, caused by the impact of natural disturbances

Abstract

Slovenian forests had been frequently affected by natural disturbances. In the study we analyzed forest management and changes in forest stands, caused mainly by natural disturbances, on the hill Boršt in the Bled region. The study area comprised 129,98 ha of forests, which were damaged by snow in 2007 and 2008, wind in 2010 and 2011 and ice storm in 2014. We analyzed the data on forest stands and forest management in the period 2005-2014. Digital forest stand maps from 2004 and 2014 were compared to find changes in developmental stages of forest stands. We also evaluated other parameters, such as growing stock, tree species composition and regeneration, all related to changes in forest stands, and harvested timber volume, artificial regeneration, and lenght of skidding trails, related to forest management. The results showed that in the studied period the growing stock decreased for 100 m3/ha, proportion of regeneration stage increased by 17% and 12,8 kilometres of skidding trails were build. In the studied period, allowable cut was exceeded five-fold.