1. Evaluation of deep learning models for image-based classification of timber logs by market valueMatevž Triplat, Žiga Lukančič, Vasja Kavčič, 2026, original scientific article Abstract: The identification of standing tree species, timber logs, and on-site assessment of their quality and value using images holds significant potential for forestry applications, including inventory management, traceability under EU regulations like the Deforestation Regulation, and market valuation amid growing demands for sustainable practices. This study addresses this by classifying images of timber logs by tree species and market value using the Orange data mining software, which leverages pre-trained convolutional neural networks (Inception v3 and SqueezeNet) to generate embeddings from a dataset of 5549 images collected at a real timber auction in Slovenia, followed by logistic regression image classification. Results show high accuracy for tree species classification (up to 92.6%), but substantially lower accuracy for market value classification (40%–55%), reflecting the greater complexity of value determination from visual features. These findings underscore the promise of deep learning for species identification while indicating the need for further methodological advancements to enhance value classification reliability, which offers the practical impact for operational forestry and bioeconomy value chains.
Keywords: image classification, timber quality, high value assortments, auctions, wood products, convolutional neural networks, CNNs, non-destructive evaluation, machine learning in forestry, tree species image recognition, forest wood assortment value
Published in DiRROS: 12.06.2026; Views: 265; Downloads: 243
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2. Strategic integration of blockchain technology into (agro)forestry forensics and governance in western Balkan 6 region : stakeholders - technology - policy nexus analysisBranislav Trudić, Filip Vasić, Aleksandar Marković, Tamara Popović, Boris Kuzmanović, Aleksandar Ivezić, Tamara Zavišić, Mehdi Ben Targem, Nikola Grčić, Miodrag Tolimir, Kristina Petrović, 2026, review article Abstract: The elicitor activity of sodium cholate (NaC) was examined in maize (Zea mays, L.) leaves and roots. The effect of this bile salt on the oxidative status in maize metabolism was determined by spectrophotometric methods, measuring the production of superoxide anions (O2 •- radicals), activity of three antioxidant enzymes (superoxide dismutase – SOD, EC 1.15.1.1; catalase – CAT, EC 1.11.1.6 and pyrogallol peroxidase – PPX, EC 1.11.1.7), content of malondialdehyde (MDA), an end product of lipid peroxidation, the contents of total phenols, tannins and flavonoids, as well as measuring scavenging capacity of plant extracts by the DPPH and ABTS assays. In addition, concentration of NaC remaining in the growth media was measured. The results showed that all tested NaC concentrations caused mild oxidative stress due to increased O2 •- radical production, activity of enzymes, and contents of all measured phenolic compounds after seven days of treatment. The highest percentage of NaC remaining in the maize growth medium after seven days was measured at the lowest initial concentration, 20 mg L−1, indicating that this concentration was the least absorbed by the maize. Results from this study provide important insights for sustainable agriculture
Keywords: digital sequence information, forestry forensics, illegal logging, policy alignment, sustainable development goal(s), traceability
Published in DiRROS: 22.05.2026; Views: 256; Downloads: 233
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3. An overview of the Slovene research on the historical development of forests and forest landscapes in the area of modernday slovenia and their management in forest science publicationsMarko Kovač, 2025, original scientific article Abstract: The present paper provides insight into the historical research in Slovenian forest science and practice. All issues of the most well-known Slovenian forest journal, Gozdarski vestnik, monographs, and selected books were analysed regarding their contents and classified into six categories: legislation; general forest management and socio-economic conditions; silviculture and forest management; natural, cultural, technical heritage and wood use; organization of forestry; and miscellanea. The largest volume of contributions belonged to the description of forest management and socio-economic conditions, silviculture and forest management, and the organisation of forestry. Although incomplete, legislation also deserves significant attention as a selection of relevant forest ordinances, once valid in the territories of what is now Slovenia, were translated to Slovene.
Keywords: Slovenia, history, forest management, forestry, Gozdarski vestnik, Gozdarska založba
Published in DiRROS: 12.05.2026; Views: 271; Downloads: 222
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4. D 2.2.1 Transnational Innovation RoadmapDarja Stare, Katarina Flajšman, Polona Hafner, Nike Krajnc, Mateja Karničnik, Tatjana Pavlič, Ema Šumenjak, Tina Goznik, Špela Pezdevšek Malovrh, Zala Uhan, 2025, treatise, preliminary study, study Keywords: forestry, women in forestry, Fem4forest project, employment in forestry, transnational study
Published in DiRROS: 21.01.2026; Views: 419; Downloads: 329
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5. Output 2.1 Transnational alumni study of female graduates in forestry professionsDarja Stare, Katarina Flajšman, Polona Hafner, Nike Krajnc, Mateja Karničnik, Tatjana Pavlič, Ema Šumenjak, Tina Goznik, Špela Pezdevšek Malovrh, Zala Uhan, 2025, treatise, preliminary study, study Keywords: forestry, women in forestry, female graduates in forestry, employment in forestry, transnational study
Published in DiRROS: 20.01.2026; Views: 561; Downloads: 355
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6. Intelektualna in konceptualna struktura področja urbanega gozdarstva v Sloveniji in svetuMojca Nastran, Vasja Leban, 2025, original scientific article Abstract: Prispevek podaja pregled objavljenih člankov in obravnavanih tematik v mednarodni znanstveni reviji Urban Forestry and Urban Greening (UFUG) ter zaključnih visokošolskih del študentov do leta 2023. V analizo je vključenih 2550 znanstvenih člankov, objavljenih v reviji UFUG v letih med 2002 in 2023, ter 88 zaključnih del, ki so bila izdana na območju Slovenije. Za primerjavo razvoja smo jih razdelili v štiri primerjalna obdobja, člankom izluščili predmetne oznake ter vsaki dodelili eno podkategorijo. Nadalje smo analizirali uporabljene termine, ki se pojavljajo v naslovih in izvlečkih člankov revije UFUG. V dveh dekadah se je, poleg povečanja števila objavljenih člankov, povečalo število člankov, ki uporabljajo predmetne oznake, povezane z biotsko raznovrstnostjo in ohranjanjem (narave). Rezultati kažejo, da je zanimanje med avtorji najbolj padlo za področje politik in upravljanja, zaznali pa smo interdisciplinarno razširitev predvsem na področja zdravstva in psihologije. Ocenjujemo, da se bo v bližnji prihodnosti interdisciplinarna širitev nadaljevala in nazadnje prešla v transdisciplinarnost.
Keywords: urbano gozdarstvo, VOSviewer, Urban Forestry and Urban Greening, mestni gozdovi, bibliometrična analiza, predmetne oznake
Published in DiRROS: 24.12.2025; Views: 1190; Downloads: 707
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7. Report on Career Orientation PracticesNike Krajnc, Darja Stare, Polona Hafner, Katarina Flajšman, Mateja Karničnik, Tatjana Pavlič, Ema Šumenjak, Sabina Majerič, Špela Pezdevšek Malovrh, Zala Uhan, 2025, treatise, preliminary study, study Keywords: forestry, gender equality, youth employment, employment, sustainable development, environmental education
Published in DiRROS: 14.07.2025; Views: 910; Downloads: 556
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8. Toolkit to expand the range of career choices to support innovative approachesNike Krajnc, Darja Stare, Polona Hafner, Katarina Flajšman, Mateja Karničnik, Tatjana Pavlič, Ema Šumenjak, Sabina Majerič, Špela Pezdevšek Malovrh, Zala Uhan, 2025, treatise, preliminary study, study Keywords: forestry, gender equality, youth employment, employment, sustainable development, environmental education
Published in DiRROS: 14.07.2025; Views: 848; Downloads: 538
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9. Promoting forestry careers to girls and young womenNike Krajnc, Darja Stare, Polona Hafner, Katarina Flajšman, Mateja Karničnik, Tatjana Pavlič, Ema Šumenjak, Sabina Majerič, Špela Pezdevšek Malovrh, Zala Uhan, 2025, treatise, preliminary study, study Keywords: forestry, gender equality, youth employment, employment, sustainable development, environmental education
Published in DiRROS: 14.07.2025; Views: 819; Downloads: 544
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10. Capacity-building for gender awareness and competences in forestry educationNike Krajnc, Darja Stare, Polona Hafner, Katarina Flajšman, Mateja Karničnik, Tatjana Pavlič, Ema Šumenjak, Sabina Majerič, Špela Pezdevšek Malovrh, Zala Uhan, 2025, treatise, preliminary study, study Keywords: forestry, gender equality, youth employment, employment, sustainable development, environmental education
Published in DiRROS: 09.07.2025; Views: 831; Downloads: 543
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