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Title:Primerjava izbranih krajinsko-ekoloških kazalcev za gozdove v dveh različnih krajinskih tipih
Authors:ID Pirnat, Janez (Author)
Files:.pdf PDF - Presentation file, download (1,16 MB)
MD5: BBBB89EA5FEAB084E574835BAE987E9D
PID: 20.500.12556/dirros/eb03aa1e-d3e3-487e-aeb8-f46232ec1023
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:Z analizami sprememb krajinske zgradbe lahko tudi spremljamo, kako to vpliva na ocenjevanje pestrostne vloge gozda. V raziskavi smo ocenili, kateri kazalci za izračunavanje površin, jedrnih con in teženj k združevanju, katerih izračun omogoča program Fragstats 4.2, so najprimernejši glede na naše potrebe, kakšne so njihove omejitve in na kaj moramo biti še posebej pazljivi. Upoštevali smo različno ločljivost vhodnih podatkov ter različna pravila za izračune med rastrskimi celicami. Oboje smo primerjali za gozdove v dveh različnih krajinskih tipih, Kočevske in Slovenske Istre. Kot primerna se izkažeta osnovna kazalca površin CA in PLAND, za zahtevnejše potrebe tudi AREA_AM. Pri oceni jedrnih con sta prav tako najprimernejša osnovna kazalca površin TCA in CPLAND, poleg njiju je uporaben še kazalec števila jedrnih con na enoto površine DCAD, za podrobnejše prostorske ocene jedrnih con pa sta primerna kazalca CORE_AM in DCORE_AM. Pri oceni teženje k združevanju je najbolj uporaben kazalec gostote zaplat PD.
Keywords:krajinsko-ekološki kazalci Fragstats, gozdovi, pestrostna funkcija
Publication status:Published
Publication version:Version of Record
Year of publishing:2015
Number of pages:str. 25-34
Numbering:Vol. 107
PID:20.500.12556/DiRROS-7793 New window
UDC:630*913/914(045)=163.6
ISSN on article:2335-3112
URN:URN:NBN:SI:doc-V5PHJJH7
DOI:10.20315/ASetL.107.3 New window
COBISS.SI-ID:4356518 New window
Note:Besedilo v slov.;
Publication date in DiRROS:12.07.2017
Views:5014
Downloads:2219
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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:Comparison of selected landscape ecological forest metrics in two different landscape types
Abstract:By analysing changes in landscape structure we can trace the influence they have on the evaluation of the diversity function of a forest. In the presented research, it was assessed which indices for computing areas, cores and aggregation tendencies that can be calculated with the Fragstats 4.2 programme best meet our needs, what limits they have and what we should pay special attention to. We considered differences in the resolution of incoming data and different rules for the calculation of raster cells. Both were compared for forests in two different landscape types: Kočevje and Slovenska Istra. The basic surface indices CA and PLAND proved to be the most suitable, while for more demanding purposes, AREA_AM can be used as well. For the evaluation of core areas, basic indices proved to be the most suitable, too, specifically TCA and CPLAND. Other important indices were the index of the number of core areas per surface unit DCAD and indices CORE_AM and DCORE_AM for a more detailed spatial evaluation of core areas, whereas most useful for the evaluation of aggregation tendency proved to be the patch density index PD.


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  1. Acta Silvae et Ligni

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