broj: 9-10/2019
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| RIJEČ UREDNIŠTVA | ||
| Uredništvo | ||
| Will a change in the ministry bring about a changein the attitude towards the forestry profession? pdf HR EN | 389 | |
| IZVORNI ZNANSTVENI ČLANCI | ||
| Damir Ugarković, Željko Španjol, Ivica Tikvić, Dražen Kapučija, Ivana Plišo Vusić | UDK 630* 111 (001) https://doi.org/10.31298/sl.143.9-10.1 | |
| Microclimate differences in the degradation stages of holm oak (Quercus ilex L.) forests pdf HR EN | 391 | |
| Ivan Lukić, Nikola Lacković, Milan Pernek, Christa Schafellner | UDK 630* 453 (001) https://doi.org/10.31298/sl.143.9-10.2 | |
| Redefinition of critical numbers of gypsy moth (Lymantria dispar L.) egg masses for pedunculate oak (Quercus robur L.) and first calculation for common beech (Fagus sylvatica L.) in Republic of Croatia pdf HR EN | 403 | |
| Muammer Şenyurt, Ilker Ercanli | UDK 630* 524 (001) https://doi.org/10.31298/sl.143.9-10.3 | |
| A comparison of artificial neural network models and regression models to predict tree volumes for crimean black pine trees in Cankiri forests pdf HR EN | 413 | |
| Tomislav Sedlar, Tomislav Sinković, Ivana Perić, Andrej Jarc, Srđan Stojnić, Bogoslav Šefc | UDK 630* 812 (001) https://doi.org/10.31298/sl.143.9-10.4 | |
| Hardness of thermally modified beech wood and hornbeam wood pdf HR EN | 425 | |
| Summary There is increasing number of products made of termally modified wood (mainly floor coverings) in wood market. Thermal modification at temperatures above 160 °C in oxygen free environment is known to alter the physical and mechanical properties of wood, among others. In this work, change in Brinell hardness of beech wood and hornbeam wood subjected to 200 °C in oxygen free environment for 48 hours was investigated in relation with unmodified wood of the same species. Beech and hornbeam were selected because of the impacts of climate change as well as future predictions on the distribution of beech and hornbeam in South East Europe. Wood hardness was investigated on cross, radial and tangential sections. The dependence of wood hardness on wood density was also shown. All measurements were performed at 12% EMC (equilibrium moisture content) of wood. The average values of Brinell hardness of termally modified beech wood and hornbeam wood were significantly different and smaller than the average values of unmodified beech wood and hornbeam wood. As expected, thermal modification caused weight reduction and consequently, decrease in the density of beech wood and hornbeam wood. Applied thermal modification reduced Brinell hardness of beech wood cross section for 3%, radial section for 15%, and tangential section for 25%. Applied thermal modification reduced Brinell hardness of hornbeam wood cross section for 6%, radial section for 18%, and tangential section for 13%. Applied thermal modification negatively influenced Brinell hardness on all three sections of investigated beech wood and hornbeam wood. The recorded decrease in hardness still does not hinder the use of such modified wood in non-load-bearing wood structures and wood flooring. Key words: Brinell hardness; thermally modified wood; beech wood; hornbeam wood | ||
| PRETHODNO PRIOPĆENJE | ||
| Anamarija Jazbec, Mislav Vedriš, Ksenija Šegotić | UDK 630*945 https://doi.org/10.31298/sl.143.9-10.5 | |
| Analysing the duration of studyng on undergraduate studies et the Faculty of forestry, University of Zagreb pdf HR EN | 435 | |
| Jelena Nedeljković, Mirjana Stanišić, Dragan Nonić, Mersudin Avdibegović, Marta Curman, Špela Pezdevšek Malovrh | UDK 630* 111 https://doi.org/10.31298/sl.143.9-10.6 | |
| Climate change governance in forestry and nature conservation: institutional framework in selected see countries pdf HR EN | 445 | |
| STRUČNI ČLANCI | ||
| Ivana Plišo Vusić, Irena Šapić, Joso Vukelić | UDK 630* 181.6 + 187 https://doi.org/10.31298/sl.143.9-10.7 | |
| Identification and mapping of Natura 2000 forest habitat types in Croatia (II) – 91F0, riparian mixed forests of Quercus robur, Ulmus laevis, Ulmus minor and Fraxinus angustifolia; 91L0, Oak-hornbeam forests of the illyrian area pdf HR EN | 461 | |
| Damir Drvodelić, Igor Poljak, Ivan Perković, Mario Šango, Katarina Tumpa, Ivana Zegnal, Marilena Idžojtić | UDK 630* 232.3 https://doi.org/10.31298/sl.143.9-10.8 | |
| Laboratory germination testing of the sweet chestnut (Castanea sativa Mill.) according to ISTA rules pdf HR EN | 469 | |