271. Vpliv sestojne zgradbe na donos medu v SlovenijiJan Mihelič, Janez Prešern, Milan Kobal, 2020, original scientific article Abstract: V lesni zalogi sestojev smo proučili vpliv količine medonosnih drevesnih vrst na donos medu. Za 70 čebeljih družin v Sloveniji smo uporabili podatke o donosih medu za posamezne drevesne vrste glede na čebelarsko najugodnejša leta in v radiju treh kilometrov od panja in izračunali: a) število čebeljih družin (n), b) gozdnatost (%) ter c) skupno lesno zalogo medonosnih drevesnih vrst (m3 ). Vpliva števila družin na donos medu v panj v večini primerov nismo potrdili (p > 0,05), statistično značilno pa vpliva na donos gozdnega in smrekovega medu. Delež gozda je v pozitivni korelaciji (r > 0,84; p < 0,05) z donosom gozdnega medu v panj. Vpliv količine drevesnih vrst na donos medu v panj lahko statistično značilno (p < 0,05) potrdimo za vse proučevane drevesne vrste, razen za jelko. Pri drugih drevesnih vrstah (razen pri smreki) delež gozda v radiju treh kilometrov od stojišč značilno ne vpliva na donos medu. Glede na dobljene regresijske modele za posamezne medonosne drevesne vrste, med katerimi smo potrdili vpliv lesne zaloge na donos, lahko za vsako lokacijo v Sloveniji napovemo potencialne donose medu. Slednje je uporabno za izbiro lokacije za postavitev čebelnjaka in tudi za določitev lokacije za prevoz čebel na pašo. Keywords: sestojna zgradba, čebelarstvo, lesna zaloga, donos medu Published in DiRROS: 10.10.2020; Views: 1897; Downloads: 534 Full text (481,28 KB) |
272. Effects of various cutting treatments and topographic factors on microclimatic conditions in Dinaric fir-beech forestsJanez Kermavnar, Mitja Ferlan, Aleksander Marinšek, Klemen Eler, Andrej Kobler, Lado Kutnar, 2020, original scientific article Abstract: Forest microclimate is strongly affected by local topography and management activities, as these directly alter overstory structure. In the present work we analysed the dependence of observed patterns of spatio-temporal microclimatic variations on topographic, canopy- and management-related factors. A forestry experiment was conducted in managed fir-beech forests in the Dinaric Mountains (Slovenia), which are characterized by rugged karstic terrain with numerous sinkholes. In 2012, cutting treatments representing a range in the intensity of overstory removal were performed: uncut controls (CON), 50% cut of stand growing stock (intermediate management intensity % IMI) and 100% cut (high management intensity % HMI) creating 0.4 ha canopy gaps. Fine-scale variation in aspect and slope and its effects on microclimate was assessed by comparing central, south-facing and north-facing within-sinkhole positions. We measured microclimatic variables (air temperature % T, relative humidity % RH) 0.5 m above the ground over three consecutive post-treatment growing seasons. Microclimatic variables showed an increase (T and vapour pressure deficit % VPD) or decrease (RH) with management intensity. Daily Tmax and VPDmax in HMI treatment were up to 5.9°C (on average 3.5°C) and up to 1.4 kPa (on average 0.6 kPa) higher than those in CON treatment, respectively, whereas daily RHmin was up to 22.7 (on average 13.0) percentage points lower. Regarding intra-seasonal patterns, microclimatic differences between treatments were largest during the summer. South-facing plots in the HMI treatment overall exhibited the most extreme conditions, i.e. the highest Tmax and lowest RHmin. Differences in microclimate between treatments were strongly modulated by canopy cover. The results also suggest that overstory removal increases topography-mediated variation in microclimate, as evidenced by significant differences in T, RH and VPD along the fine-scale topographic gradient within the created canopy gaps. Keywords: tree cutting, air temperature, relative humidity, vapour pressure deficit, karst topography, canopy cover Published in DiRROS: 08.10.2020; Views: 1355; Downloads: 573 Full text (1,59 MB) This document has many files! More... |
273. Rak trebušne slinavke : kaj morate vedeti o bolezni?Janja Ocvirk, Martina Reberšek, Zvezdana Hlebanja, Erik Škof, Irena Oblak, Vaneja Velenik, Franc Anderluh, 2008, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: dejavniki tveganja, simptomi, diagnostika, zdravljenje, bolečina Published in DiRROS: 10.08.2020; Views: 1767; Downloads: 695 Full text (1,52 MB) |
274. Rak požiralnika : kaj morate vedeti o bolezni?Franc Anderluh, Irena Oblak, Vaneja Velenik, Janja Ocvirk, Zvezdana Hlebanja, Martina Reberšek, Mihael Sok, 2008, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: dejavniki tveganja, simptomi, diagnostika Published in DiRROS: 10.08.2020; Views: 1769; Downloads: 561 Full text (1,34 MB) |
275. Poročilo o spremljanju stanja gozdov za leto 2019Mitja Ferlan, Andrej Grah, Janez Kermavnar, Lado Kutnar, Nikica Ogris, Anže Martin Pintar, Špela Planinšek, Matej Rupel, Primož Simončič, Mitja Skudnik, Daniel Žlindra, 2020, final research report Keywords: varstvo gozdov, monitoring, stanje gozdov, zdravstveno stanje krošenj, popis povzročiteljev poškodb, meteorološke meritve, osutost dreves, poročila, Slovenija Published in DiRROS: 04.08.2020; Views: 2956; Downloads: 1033 Full text (8,28 MB) This document has many files! More... |
276. Karta potencialnih rastišč poletne gomoljike (Tuber aestivum) kot pripomoček pri razvoju gomoljikarstva v SlovenijiJanez Bergant, Andrej Piltaver, Nikica Ogris, Borut Vrščaj, Dušan Jurc, 2014, professional article Keywords: zdravje gozdov, gozdovi, gomoljka, Tuber, modeli, karte, potencialna rastišča, gomoljkarstvo Published in DiRROS: 28.07.2020; Views: 1761; Downloads: 870 Link to full text This document has many files! More... |
277. Lithium contamination of honeybee products and its accumulation in brood as a consequence of anti-varroa treatmentJanez Prešern, Uroš Kur, Jernej Bubnič, Martin Šala, 2020, original scientific article Keywords: honeybees, lithium, lithium contamination, varroa, varroa control, food chain coupling Published in DiRROS: 16.06.2020; Views: 2258; Downloads: 1095 File (515,51 KB) |
278. Ocena zgradbe in stabilnosti gozdnega roba kot pripomoček za ovrednotenje klimatske in zaščitne funkcije primestnih gozdovDavid Hladnik, Andrej Kobler, Janez Pirnat, 2020, original scientific article Abstract: V prispevku podajamo razširjen povzetek iz članka, objavljenega v reviji Forests z naslovom Evaluation of forest edge structure and stability in peri-urban forests (Hladnik in sod., 2020). Dodali smo predloge o prenovi varovalne, zaščitne in klimatske funkcije gozdov ter predloge ukrepov, ki izhajajo iz izsledkov raziskave gozdnih robov. Analizirali smo vertikalno zgradbo gozdnih robov in opozorili na pomen dimenzijskega razmerja dreves h/d na gozdnih robovih primestnih gozdnih zaplat ob Ljubljani, kjer ob pozidanih zemljiščih prevladujejo visoki in strmi gozdni robovi. Predstavili smo preprosto metodologijo, na podlagi katere je mogoče z metodami daljinskega zbiranja podatkov zasnovati monitoring primestnih gozdnih površin in gozdnih robov. Keywords: funkcije gozdov, stabilnost gozdnega roba, gozdni rob, zgradba gozdnega roba, LiDAR, urbani gozdovi Published in DiRROS: 09.06.2020; Views: 2323; Downloads: 759 Full text (296,57 KB) |
279. Smernice zdravljenja raka dojkCvetka Bilban-Jakopin, Jožica Červek, Tanja Čufer, Darja Eržen, Rastko Golouh, Kristijana Hertl, Janez Lamovec, Jurij Lindtner, Elga Majdič, Bojana Pajk, Ana Pogačnik, Miljeva Rener, Barbara Vidergar-Kralj, Maja Primic-Žakelj, Janez Žgajnar, 2004, dictionary, encyclopaedia, lexicon, manual, atlas, map Published in DiRROS: 27.05.2020; Views: 1832; Downloads: 472 Full text (904,07 KB) |
280. Smernice za obravnavo bolnikov z malignimi limfomiMarta Dremelj, Snježana Frković-Grazio, Monika Jagodic, Janez Jančar, Barbara Jezeršek Novaković, Tanja Južnič Šetina, Veronika Kloboves-Prevodnik, Radka Tomšič, Marjeta Vovk, Lorna Zadravec-Zaletel, 2008, dictionary, encyclopaedia, lexicon, manual, atlas, map Published in DiRROS: 27.05.2020; Views: 1705; Downloads: 508 Full text (304,48 KB) |