221. Variation in floristic and trait composition along environmental gradients in the herb layer of temperate forests in the transition zone between Central and SE EuropeJanez Kermavnar, Lado Kutnar, Aleksander Marinšek, 2022, original scientific article Abstract: Species- and trait-environment linkages in forest plant communities continue to be a frequent topic in ecological research. We studied the dependence of floristic and functional trait composition on environmental factors, namely local soil properties, overstory characteristics, climatic parameters and other abiotic and biotic variables. The study area comprised 50 monitoring plots across Slovenia, belonging to the EU ICP Forests monitoring network. Vegetation was surveyed in accordance with harmonized protocols, and environmental variables were either measured or estimated during vegetation sampling. Significant predictors of species composition were identified by canonical correspondence analysis. Correlations between plant traits, i.e. plant growth habit, life form, flowering features and CSR signature, were examined with fourth-corner analysis and linear regressions. Our results show that variation in floristic composition was mainly explained by climatic parameters (mean annual temperature, mean annual precipitation), soil properties (pH) and tree layer-dependent light conditions. Trait composition was most closely related with tree layer characteristics, such as shade-casting ability (SCA, a proxy for light availability in the understory layer), tree species richness and tree species composition. Amongst soil properties, total nitrogen content and soil texture (proportion of clay) were most frequently correlated with different species traits or trait states. The CSR signature of herb communities was associated with tree layer SCA, soil pH and mean annual temperature. The floristic composition of the studied herb-layer vegetation depended on temperature and precipitation, which are likely to be influenced by ongoing climate change (warming and drying). Trait composition exhibited significant links to tree layer characteristics and soil conditions, which are in turn directly modified by forest management interventions.
Keywords: vegetation–environment relationship, floristic composition, life-history traits, herbaceous species, Slovenia
Published in DiRROS: 15.04.2022; Views: 699; Downloads: 413
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224. Priporočila diagnostike in zdravljenja raka dojkAna Blatnik, Andraž Perhavec, Barbara Gazić, Barbara Vidergar-Kralj, Erika Matos, Ivica Ratoša, Janez Žgajnar, Kristijana Hertl, Marko Hočevar, Mateja Krajc, Nikola Bešić, Simona Borštnar, Marija Snežna Paulin-Košir, Tanja Marinko, Ulrika Klopčič, 2021, not set Keywords: presejanje, asimptomatske bolnice, simptomatske bolnice, genetsko svetovanje, slikovna diagnostika, citopatologija, kirurško zdravljenje, sistemsko zdravljenje, algoritmi, radioterapija, elektronske knjige
Published in DiRROS: 17.03.2022; Views: 875; Downloads: 525
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225. Kaj je dedni rak? : dedno pogojeni raki - genetsko svetovanje in testiranjeAna Blatnik, Mateja Krajc, Ksenija Strojnik, Srdjan Novaković, Barbara Perić, Marta Banjac, Janez Žgajnar, 2020, not set Keywords: medicinska genetika, genetsko testiranje
Published in DiRROS: 11.03.2022; Views: 810; Downloads: 240
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226. Synergistic enhancement of photocatalytic CO [sub] 2 reduction by plasmonic Au nanoparticles on TiO [sub] 2 decorated N-graphene heterostructure catalyst for high selectivity methane productionKamal Khaja Mohaideen, Rekha Narayan, Narendraraj Chandran, Stefan Popovic, Mohammed Azeezulla Nazrulla, Janez Kovač, Nika Vrtovec, Marjan Bele, Nejc Hodnik, Marjeta Maček, Blaž Likozar, 2022, original scientific article Published in DiRROS: 09.03.2022; Views: 1012; Downloads: 608
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228. 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: 1074; Downloads: 294
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229. Tveganja, koristi in upravljanje s tujerodnimi drevesnimi vrstami v alpskem prostoru : rezultati spletne anketeAnica 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: 1031; Downloads: 313
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230. Omejitev izvoza okroglega lesa in grobo obdelanega lesa s 1.1.2022 iz RusijeŠpela 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: 886; Downloads: 394
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