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124. Localities and sites of the Southeastern-Alpine endemic species Spiraea decumbens Koch in Breginjski kot (Northwestern Slovenia)Marko Pavlin, Robert Brus, Igor Dakskobler, 2015, izvirni znanstveni članek Povzetek: The eastern distribution limit of Spiraea decumbens s. str. is in Breginjski Kot (northwestern Slovenia), where we recorded 49 localities of this eastern-Alpine endemic plant species. We determined two new localities in a new quadrant (9746/4) on riparian rocks of the Nadiža River under Mt. Mija at Kozja Peč, which is currently the southeasternmost point of its entire distribution area. We conducted a phytosociological survey of 26 localities. This endemic occurs in dolomite rock crevices in stands classified within the association Spiraeo-Potentilletum caulescentis. On dolomite screes and torrential fens it is found to dominate on small areas in the successional stages, classified into the provisional association Aquilegio einseleanea-Spiraeetum decumbentis (alliance Petasition paradoxi) and into the new association Spiraeo decumbentis-Seslerietum calcariae (alliance Caricion austroalpinae). These stages are gradually becoming overgrown with thermophilous deciduous trees, and in one of the relevés we found the studied species in an open hop hornbeam stand classified into the association Fraxino orni-Ostryetum. Its populations are vital and unthreatened, except in the two new localities under Mt. Mija, which call for special protection due to their small size and a possibility of being backfilled with gravel.
Objavljeno v DiRROS: 12.07.2017; Ogledov: 4376; Prenosov: 2345
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125. Legal basis, standards and criteria for evaluating thermal conditions in forest workAnton Poje, Igor Potočnik, 2008, pregledni znanstveni članek Povzetek: In this discourse, the Slovene legal basis for thermal conditions at work, together with three international standards for studying thermal conditions SIST EN ISO 7730 (Thermal comfort), SIST EN 27243 (hot environments) and SIST EN ISO 11079 (cold environments), are presented. All three international standards list the criteria for evaluation of thermal conditions and represent the scientific research basis for studying work in practice. For efficient work safety, knowledge of the national legislation is implicit.
Ključne besede: international standards, working conditions, thermal conditions, legislation
Objavljeno v DiRROS: 12.07.2017; Ogledov: 4491; Prenosov: 1865
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126. Launching work orders into production of wood enterprise with the multi-criteria decision-making methodLeon Oblak, Boštjan Novak, Igor Lipušček, Jože Kropivšek, 2007, pregledni znanstveni članek Povzetek: Quality information is crucial for planning and running of production in wood industry companies. Information of crucial importance is the following: quality in the production process according to work orders and types of product, the information on the missing materials i.e. constituent parts according to projects i.e. work orders and the information on launching work orders into production. The method of multi-criteria decision-making was used for determining the order of launching group products into production. We studied three main criteria: market factors, organisation-production factors and economic factors. For computer support, we chose the computer programme DEXi, which represents the framework of the expert system for multi-criteria decision-making.
Ključne besede: wood enterprise, work orders, organization, multi-criteria decision-making method
Objavljeno v DiRROS: 12.07.2017; Ogledov: 4379; Prenosov: 1923
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127. Sedanje stanje gozdnih cest kot rezultat preteklega gospodarjenjaBoštjan Hribernik, Igor Potočnik, 2006, izvirni znanstveni članek Povzetek: Gozdne ceste so namenjene zlasti gospodarjenju z gozdom, in prav temu je prilagojeno načrtovanje njihove rabe in vzdrževanja. Naraščanje pomena negozdarskih rab gozdnih cest vodi k višanju standarda vzdrževanja in posledično k trajnemu pomanjkanju sredstev. Višji stroški vzdrževanja nastajajo tudi zaradi pretekle graditve gozdnih cest, ki je na račun hitrega odpiranja kmetij in zaselkov zanemarjala kakovost graditve. V strukturi stroškov vzdrževalnih del zato redno nastopajo stroški ukrepov, ki predstavljajo dokončanje graditve. Rezultat pretekle gradnje, rabe in vzdrževanja je sedanje stanje gozdnih cest, ki je bilo ugotovljeno s popisom poškodb na vzorčnih hektometrskih odsekih. Poleg poškodb spodnjega in zgornjega ustroja ceste zbuja pozornost nizka stopnja dograjenosti sistema odvodnjavanja.
Ključne besede: gozdne ceste, raba gozdnih cest, vzdrževanje gozdnih cest
Objavljeno v DiRROS: 12.07.2017; Ogledov: 4333; Prenosov: 1906
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128. Biodiversity of types of ectomycorrhizae in a norway spruce stands on PokljukaUrša Vilhar, Igor Smolej, Tadeja Trošt Sedej, Lado Kutnar, Hojka Kraigher, 2004, izvirni znanstveni članek Povzetek: Types of ectomycorrhizae were studied in soil cores from a young regeneration center in an autochthonous Norway spruce stand on Pokljuka (Triglav National Park, 1200 m.a.s.l.). Soil cores of equal volume (274 ml, 0 - 18 cm deep) weretaken from 33 sampling plots. In the samples all the roots were counted and types of ectomycorrhizae briefly characterized. From these data diversity indices (species diversity (d) and Shannon- Weaver index of diversity (H)) were calculated. Interactions among mycorrhizae, light regime and survival of spruce seedlings were studied. Out of about 50,000 root tips approximately 1 %were non-mycorrhizal, 63 % were old unviable mycorrhizae and 36 % were identifiable ectomycorrhizal root tips, forming 27 different types of ectomycorrhizae. Sixteen types of ectomycorrhizae were briefly characterized. The Shannon diversity index for types of ectomycorrhizae was high (3.13) with respect to the above-ground diversity of vegetation (1.7). The direct site factor was shown to be negatively correlated to ~Piceirhiza cornuta. The diffuse site factor was negatively correlated to Cortinarius sp. (obtusus type) and positively correlated to Inocybe sp. The ground vegetation cover waspositively correlated to Piceirhiza gelatinosa and the total vegetation cover to Elaphomyces sp.
Ključne besede: ectomycorrhizae, types of ectomycorrhizae, Norway spruce, natural regeneration, Pokljuka
Objavljeno v DiRROS: 12.07.2017; Ogledov: 4326; Prenosov: 1867
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129. Intuitive decision-making in a model of integral decision-making schemeLeon Oblak, Igor Lipušček, 2003, izvirni znanstveni članek Povzetek: V raziskavi smo oblikovali model celostne zasnove odločanja, ki integrira dobre lastnosti sodobnih pristopov, pri čemer smo v model vgradili tudi intuitivno odločanje. S pomočjo analize, ki je bila opravljena v dvanajstih lesnoindustrijskih podjetjih v Sloveniji smo proučevali, na osnovi česa se managerji v slovenskih lesnoindustrijskih podjetjih odločajo in kakšno je njihovo poznavanje možnosti uporabe intuicije pri odločanju. Primerjava dobljenih rezultatov s trendi na področju odločanja v svetu je pokazala, da jeproces odločanja v lesnoindustrijskih podjetjih v Sloveniji dokaj konzervativen in da se lahko z dodatnim izobraževanjem sedanjega managementa procesi odločanja bistveno izboljšajo.
Ključne besede: lesna industrija, intuitivno odločanje, model celostne zasnove odločanja
Objavljeno v DiRROS: 12.07.2017; Ogledov: 4799; Prenosov: 2001
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