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221.
Evaluation of Au/ZrO [sub] 2 catalysts prepared via postsynthesis methods in CO [sub] 2 hydrogenation to methanol
T. Vikram Sagar, Janez Zavašnik, Matjaž Finšgar, Nataša Novak Tušar, Albin Pintar, 2022, original scientific article

Published in DiRROS: 22.03.2022; Views: 990; Downloads: 582
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In Memoriam - Maks Konečnik
Janez Konečnik, 2022, popular article

Published in DiRROS: 08.03.2022; Views: 802; Downloads: 183
.pdf Full text (265,41 KB)

226.
Kako nastajajoči vodni kataster vpliva na določanje hidrološke funkcije gozda?
Milan Kobal, Janez Pirnat, 2022, original scientific article

Abstract: Sedanji sistem funkcij gozdov, ki ga v osnovi prinaša Zakon o gozdovih iz leta 1993, je potreben nadgradnje, saj je funkcij zelo veliko, njihove vsebine pa se pogosto podvajajo. Ob takratnem prvem kartiranju funkcij gozdov se je gozdarstvo opiralo predvsem na svoje lastne prostorske sloje, zdaj pa so na voljo podrobnejše prostorske zbirke tudi drugih uporabnikov prostora. Oboje je nov izziv za prikazovanje in vsebinsko vrednotenje ukrepov za zagotavljanje trajnosti funkcij gozdov ter prilagojenega gospodarjenja z gozdovi. V prispevku smo obravnavali hidrološko funkcijo gozda, deloma zaradi aktualnih razmer v Slovenij in svetu (poplave, suše), deloma pa zato, ker novejši podatki o vodnem katastru bistveno nadgrajujejo bazo podatkov o vodah. Če kot velikost orisa okrog površinskih voda upoštevamo eno drevesno višino, je to 120.688,64 ha gozdov, kjer bi bila po dosedanjih kriterijih lahko poudarjena hidrološka funkcija gozda. Daleč največ takih gozdov je ob vodotokih, sledijo izviri in mokrotne površine.
Keywords: sistem funkcij gozdov, hidrološka funkcija gozda, vodni kataster
Published in DiRROS: 08.03.2022; Views: 1069; Downloads: 291
.pdf Full text (273,55 KB)

227.
Tveganja, koristi in upravljanje s tujerodnimi drevesnimi vrstami v alpskem prostoru : rezultati spletne ankete
Anica Simčič, Ajša Alagić, Janez Kermavnar, Lado Kutnar, Simon Zidar, Aleksander Marinšek, 2022, original scientific article

Abstract: Prispevek predstavlja mnenja in poznavanje tujerodnih drevesnih vrst (TDV) deležnikov, ki pri svojem delu prihajajo v stik s TDV v gozdnih, urbanih in periurbanih območjih v Sloveniji. Mnenja smo pridobili s spletno anketo v letu 2020, ki je bila v okviru projekta ALPTREES del raziskave v vsaki od petih partnerskih držav (Slovenija, Avstrija, Nemčija, Italija in Francija) alpskega prostora. Analizirali smo odgovore slovenskih deležnikov in tako pridobili informacije o poznavanju, dojemanju in odnosu deležnikov do TDV. S spletnim anketiranjem smo dobili odgovore na vprašanja 120 posameznikov. Z analizo odgovorov smo ugotovili, da večina anketirancev prepoznava TDV in invazivne tujerodne drevesne vrste (ITDV) v Sloveniji. Na splošno anketiranci menijo, da TDV prinašajo tveganje v alpski prostor. Anketiranci so kot najbolj razširjene TDV ocenili robinijo (Robinia pseudoacacia), veliki pajesen (Ailanthus altissima), pavlovnijo (Paulownia tomentosa), navadno ameriško duglazijo (Pseudotsuga menziesii), rdeči hrast (Quercus rubra) in zeleni bor (Pinus strobus). Med najbolj invazivne TDV uvrščajo robinijo, veliki pajesen, pavlovnijo, octovec (Rhus typhina) in ameriški javor oz. negundovec (Acer negundo). Slaba polovica anketirancev je izrazila srednje veliko zaskrbljenost glede vpliva ITDV, kar četrtina vprašanih pa je zaradi TDV zelo zaskrbljena.
Keywords: tujerodne drevesne vrste, invazivne tujerodne drevesne vrste, alpski prostor, upravljanje, tveganje
Published in DiRROS: 08.03.2022; Views: 1014; Downloads: 309
.pdf Full text (431,99 KB)

228.
Omejitev izvoza okroglega lesa in grobo obdelanega lesa s 1.1.2022 iz Rusije
Špela Ščap, Janez Zafran, 2022, professional article

Keywords: gozdarstvo, gozdovi, okrogli les, grobo obdelan les, Rusija, izvoz, mednarodni trg
Published in DiRROS: 22.02.2022; Views: 883; Downloads: 392
.pdf Full text (225,29 KB)

229.
Relationships between the decomposition behaviour of renewable fibres and their reinforcing effect in composites processed at high temperatures
Janez Slapnik, Thomas Lucyshyn, Gerald Pinter, 2021, original scientific article

Published in DiRROS: 11.01.2022; Views: 1159; Downloads: 773
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230.
Climate change and disturbances will shape future temperate forests in the transition zone between Central and SE Europe
Lado Kutnar, Janez Kermavnar, Anže Martin Pintar, 2021, original scientific article

Abstract: It is expected that climate change as well as abiotic and anthropogenic disturbances will strongly influence temperate forests. Besides changes in the main climate variables, various disturbance factors may significantly worsen conditions for mesic Slovenian forests (SE Europe) dominated by European beech (Fagus sylvatica), Norway spruce (Picea abies) and European silver fir (Abies alba). In Slovenia, the climate has warmed in recent decades, with an average annual rate of increase of about 0.4°C per decade or even more than 0.5°C per decade in summer. In addition, disturbances have caused considerable damage to trees in the most extensive forest types in Slovenia, starting with a widespread ice storm in 2014, followed by bark beetle outbreaks, windthrows and salvage logging interventions. After 2014, salvage logging increased from about one third to two thirds of the total annual felling. Over the last two decades, we have observed a decline in Norway spruce growing stock, with the highest rate of decrease in areas below 500 m a.s.l., and an increasing trend for European beech. Overall, the three dominant species (beech, spruce, silver fir), which together account for more than 70% of the total growing stock, have shown a declining trend over the last 20 years. The patterns observed are broadly consistent with earlier predictions developed for different climate change scenarios and with those reported in many other European countries. Adaptive forest management, which implements close-to-nature silviculture, has been traditionally practised in the region under study and has the potential to play an important role in reducing the risks associated with the impacts of climate change and disturbances in the future.
Keywords: climate warming, disturbance factors, ice storm, bark beetle outbreaks, spruce decline, salvage logging, tree species composition, temperate forest, Slovenia
Published in DiRROS: 03.01.2022; Views: 780; Downloads: 643
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