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Ocena naravnosti gozdnih rezervatov Slovenije, problematičnih z vidika lastništva, na podlagi mrtve lesne biomase : magistrsko delo - magistrski študij - 2. stopnja
Grce, Dragomir (Author), Nagel, Thomas Andrew (Mentor) More about this mentor... This link opens in a new window

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Abstract
V trinajstih gozdnih rezervatih, ki so delno ali v celoti privatne oziroma občinske lasti, so bile opravljene meritve večjih mrtvih drevesnih ostankov z namenom določitve ohranjenosti in naravnosti zgradbe gozdov. Izračunana in analizirana je bila njihova prostornina ter ugotovljena debelinska in razkrojna porazdelitev ter vrstna sestava. Na podlagi meritev na stalnih vzorčnih ploskvah so bile opravljene primerjave parametrov odmrlih dreves med gozdnimi rezervati in okoliškimi nezavarovanimi gozdovi. S pomočjo študija literature so bile ugotovljene tudi razlike med drugimi evropskimi gozdnimi rezervati in med pragozdovi. Raziskava je pokazala, da je večina rezervatov z vidika odmrlega drevja dobro ohranjena in ima zaradi tega visok raziskovalni pomen. Med vsemi gozdnimi rezervati je znašala srednja vrednost volumna mrtvih drevesnih ostankov 118 m3/ha, kar je zelo visoka vrednost, ki se že približuje vrednostim v okoliških pragozdnih rezervatih. V bližnjih nezavarovanih gozdovih je znašala srednja vrednost 22 m3/ha. Odmrlo drevje je bilo v rezervatih tudi debelejše in starejše ter večinoma po vrstni sestavi bolj rastišču primerno, kot v okoliških gospodarskih gozdovih.

Language:Slovenian
Keywords:gozdni rezervati, mrtvi lesni ostanki, mrtvo drevje, ocena naravnosti, razpadni stadiji, debelinska porazdelitev mrtvih dreves
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Year:2012
Publisher:[D. Grce]
Number of pages:IX, 69 str.
Place:Ljubljana
UDC:630*2
COBISS.SI-ID:3541926 This link opens in a new window
Views:848
Downloads:290
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Secondary language

Language:English
Abstract:
In the thirteen forest reserves, which are partly or fully private or owned by municipalities, coarse woody debris was quantified to assess naturalness and inform future conservation status of these reserves. Deadwood quantity (volume) and quality (diameter sizes, decomposition stages, broadleaf/conifer ratios, logs/snags ratios and species compositions) were measured and compared with data from nearby managed forests, based on forest inventory plots from the Slovenian Forest Service. The quantity and quality of dead wood found in the reserves indicate a high degree of naturalness. Over all the reserves, the mean volume of deadwood was 118 m3/ha, a value that is approaching the amount found in old-growth forests in the region. In contrast,average dead wood volume in surrounding managed forests was 22 m3/ha,and individual logs and snags had much smaller diameters than in reserves. The differences in the quantity and quality of dead wood found in reserves and managed forests are similar to those reported in other regions of Europe.


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