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Title:Stabilnost gozdnih površin v Sloveniji kot kriterij krajinske pestrosti in obstojnosti
Authors:ID Pirnat, Janez (Author)
ID Kobler, Andrej (Author)
Files:.pdf PDF - Presentation file, download (768,21 KB)
MD5: D047279EAD539D839013AF71AE915997
PID: 20.500.12556/dirros/2ae638da-6680-43b0-981c-23f6154f2ddb
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:Stabilnost notranjega okolja gozdov je pomemben kazalec biotske pestrosti na krajinskem nivoju, ko se odločamo o tem, ali bi določene gozdove lahko izkrčili. Zaradi tega smo se odločili, da ocenimo stabilnost notranjega gozdnega okolja v Sloveniji med letoma 1975 in 2012, saj so nam na voljo primerljivo dovolj natančni podatki o gozdni maski za teh 38 let. Štiri vrste sprememb pokrovnosti z gozdom (stabilni negozd, krčitve, zaraščanje in stabilni gozd) pojasnjujemo z empiričnim modelom v obliki odločitvenega drevesa, ki upošteva nadmorsko višino, naklon terena, talni tip, oddaljenost vsake celice na rastrski karti od gozdnega roba v izhodiščnem letu, oddaljenost vsake celice na rastrski karti od najbližjega naselja v izhodišč- nem letu. Pojasnjevalne modele smo zgradili po metodi strojnega učenja (Quinlan, 1986) z orodjem See5 (www.rulequest. com). Natančnost izbranega modela je znašala 74,65 %. V letu 2012 so stabilni gozdovi, katerih površina se od leta 1975 ni spreminjala, pokrivali 53 % Slovenije. Izmed vseh spremenljivk najbolje pojasnjujeta spremembo rabe začetna oddaljenost od gozdnega roba in deloma naklon terena. Oddaljenost od naselij in nadmorska višina nimata opaznega vpliva.
Publication status:Published
Publication version:Version of Record
Year of publishing:2014
Number of pages:str. 35-42
Numbering:Vol. 104
PID:20.500.12556/DiRROS-7786 New window
UDC:630*91:630*11(497.4)(045)=163.6
ISSN on article:2335-3112
URN:URN:NBN:SI:doc-IRNWOE1K
DOI:10.20315/ASetL.104.4 New window
COBISS.SI-ID:4040102 New window
Note:Besedilo v slov.;
Publication date in DiRROS:12.07.2017
Views:4928
Downloads:2256
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Record is a part of a journal

Title:Acta Silvae et Ligni
Publisher:Gozdarski inštitut Slovenije, založba Silva Slovenica, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:2335-3112
COBISS.SI-ID:266761216 New window

Secondary language

Language:English
Title:The stability of forest areas in Slovenia as a criterion of landscape diversity and durability
Abstract:The stability of forest core areas is an important indicator of biotic diversity on a landscape level in the process of deciding whether certain forests could be cleared. Consequently, we decided to estimate the stability of forest core areas in Slovenia between 1975 and 2012, as we are in possession of sufficiently accurate data to make a comparison of forest cover for these 38 years. Four types of changes in forest coverage (stable non-forest, deforestations, overgrowing and stable forest) are explained with an empiric model designed as a decision tree, which takes into account the altitude, the slope of the terrain, ground type, the distance of each cell on a raster map from the forest edge in the base year and the distance of each cell on a raster map from the nearest settlement in the base year. Explanatory models were built using the method of machine learning (Quinlan, 1986) using See5 (www.rulequest.com). The accuracy of the chosen model was 74.65%. In 2012, stable forests covered 53 % of Slovenia; their coverage has remained unchanged since 1975. From all the variables, land-use changes are best explained by the initial distance from the forest edge and partially by the slope of the terrain. The distance from settlements and the altitude, on the other hand, do not play a significant role.


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  1. Acta Silvae et Ligni

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