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Prostorski prikaz produkcijske sposobnosti gozdnih rastišč v Sloveniji
Bončina, Andrej (Author), Kadunc, Aleš (Author), Poljanec, Aleš (Author), Dakskobler, Igor (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-2R9GYFRI This link opens in a new window

Abstract
Ugotovljene vrednosti rastiščnih indeksov drevesnih vrst na rastiščih, opredeljenih z gozdnimi združbami na ravni asociacije, so bili podlaga za oceno produkcijske sposobnosti gozdnih rastišč (PSGR) v Sloveniji ter njihov prostorski prikaz na ravni odsekov. Postopek določanja PSGR na ravni 74 gozdnih rastiščnih tipov in odsekov je obsegal: 1) oceno naravne drevesne sestave gozdnih združb (gozdnih rastiščnih tipov), 2) oceno produkcijske sposobnosti posameznih drevesnih vrst po gozdnih združbah, 3) izračun srednje vrednosti PSGR na ravnih odsekov ter 4) grafični prikaz za gozdni prostor Slovenije. Produkcijske sposobnosti 74 gozdnih rastiščnih tipov so od 0 do 22,1 m3ha-1leto-1, v poprečju pa 7,5 m3ha-1leto-1. Analiza vrednosti PSGR po odsekih kaže, da so te na 77 % celotne gozdne površine v intervalu 6%10 m3ha-1leto-1. Algoritmi, ki smo jih uporabili za prostorski prikaz PSGR, omogočajo stalno posodabljanje karte PSGR. Izboljšamo jo lahko z dodatnimi raziskavami rastiščnih indeksov, dopolnjenimi postopki ugotavljanja PSGR in izboljšanimi fitocenološkimi podlagami.

Language:Slovenian
Keywords:rastiščni indeks, produkcijska sposobnost, gozdni rastiščni tipi, Slovenija
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2014
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije
Number of pages:str. 183-197
Numbering:Letn. 72, št. 4
UDC:630*56+630*18(497.4)(045)=163.6
ISSN on article:0017-2723
COBISS.SI-ID:3904422 Link is opened in a new window
Views:766
Downloads:149
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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:Spatial estimation of forest site productivity in Slovenia
Abstract:
Site indices of tree species per forest sites, defined by forest communities at the forest association level were the basis for estimation of forest productivity of forest sites (PSGR) in Slovenia. The PSGR values were calculated per sub-compartments (n =54,156) considering portions of forest site types. PSGR determination for 74 forest site types and calculation of mean value of PSGR per sub-compartments included four stages: 1) assessment of %natural% tree species composition of forest site types, 2) estimation of production capacity of individual %natural% tree species in each forest site type, 3) calculation of mean value of forest site productivity at a sub-compartment level, and 4) spatial overview of calculated values of PSGR per sub-compartments for the whole forest area of Slovenia. Production capacity of the 74 forest site types varies between 0 in 22.1 m3ha-1 year-1, mean value amounted to 7.5 m3ha-1year-1. In the 77 % of the whole forest area, the PSGR amounts to 6-10 m3ha-1year-1. Algorithms used in the study enable permanent updating of the forest site productivity map. The spatial estimation of forest sites productivity in Slovenia can be improved by additional research on site indices, improved algorithms for the PSGR determination, and detailed phytosociological mapping of forest communities.

Keywords:site index, forest site productivity, forest site types, Slovenia

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