The sustainable forest management concept contains the essence of the sustainable development paradigm - meeting the current needs of society without compromising the needs of future generations. The strategic commitment of the Faculty of Forestry University of Sarajevo is aimed at quality education of forestry experts, conducting innovative research and the most intensive cooperation with the economy. The methodological approach in this paper is based on a critical analysis of the scope of the educational-research process at the Faculty of Forestry University of Sarajevo, and the potentials of sustainable forest management in BiH, to determine to what extent higher education and research on environmental, sociological and economic aspects of forest management can affect positive changes in BiH society. Apart from identifying the benefits of forest ecosystems in the context of contributing to sustainable development, the research on the attitudes of teaching staff related to the contribution of the educational-research process to general goals of sustainable development from the 2030 Agenda was conducted. The results of this paper show that the concept of sustainable forest management, as it is realized in educational-research process at the Faculty of Forestry University of Sarajevo, has significant potential to contribute to sustainable development in BiH. This contribution is reflected in biodiversity conservation, mitigation of climate change, carbon storage, prevention of natural disasters, impact on the stability of water and soil, energy supply from renewable sources, continuous economic growth, socially responsible production and consumption, job security, development of rural and urban areas as well as maintaining and improving the psychophysical health of the population. Based on the obtained results, it can be concluded that sustainable forest management, grounded on scientific postulates, understanding of diversity of forest ecosystem services and dynamics in society's requirements towards forests, multidisciplinary and cross-sectoral cooperation, can be an important factor of sustainable development in BiH.

Forests in Europe are, at present not endangered by soil erosion, however, this can change with climate change or intensified forest management practices. Using a newly established network of plots in beech forests across Europe, the aims of this study were 1) discrimination of soil properties and erodibility indices in relation to bedrock, 2) determination of geochemical properties and Corg influencing erodibility, and 3) assessment of the effect of soil depth on erodibility indices. Seventy-six soil samples from 20 beech forests were collected in 11 countries to quantify soil properties influencing erodibility indices clay ratio, modified clay ratio, sodium adsorption ratio, and oxides ratio. Results indicate that dominant soil properties, determined by bedrock, that correlate with forest soil erodibility indices are: Corg, pH, EC, Ca and Na ion concentrations, total-water soluble cations, and the % of sand. According to the tested indices, soil susceptibility to erosion follows the sequence: granite>andesite>sandstone>quartzite>limestone. Deeper soil horizons on granite are more susceptible to erosion than surface horizons, while this is not the case for soils on limestones. In conclusion, forest management should consider the predisposition of different soil types to erosion.

The present study addresses the short-term effects of different harvest intensities under close-to-nature selective management on the upper soil layers in Slovenian and Bosnian Dinaric karst fir-beech forests. The different harvest intensities coincided with the single-tree and irregular shelterwood management, common in the region. The effect of harvesting intensity on the upper soil layers (Ol, Of, Ol and 0–10 cm mineral soil) was investigated by a repeated measurements experiment in Slovenia on 27 research plots in close-to nature managed forests. The properties of the upper layers (concentration of SOC and TN, C/N ratio, weights, BD and SOC stocks) were analyzed twice, before (2011) and after (2014) treatment of 50% and 100% harvest intensity in relation to the total standing growing stock of trees. As a control, we used no-treatment <20% harvesting intensity plots. To extend this experiment, we added three comparable plots from the Bosnian site: one in an old-growth forest with 0% harvest intensity and two in the managed forest with <20% harvest intensity. The results of the assessment of mean differences indicated a significant influence of harvesting intensity on the decrease in SOC, TN concentrations, weights and SOC stocks in the organic layers and the increase in BD and SOC stocks in the 0–10 cm mineral soil. The highest relative decreases in Ol, Of and Oh SOC stocks occurred in 50% (−10 and −38%) and 100% (−16 and −49%) harvest intensities. Negligible relative differences in both organic and 0–10 cm mineral layers were found for the <20% harvest intensity in the region. The change in forest light conditions resulting from differences in canopy openness as a function of applied harvest intensity explained the significant difference in the properties of the upper soil layers. The impact of the short-term losses in SOC stocks, in terms of overall soil productivity, may depend on the regeneration dynamics and melioration methods.

Fagus sylvatica is widely distributed across Europe thanks to its high adaptability in a wide variety of soils and climate. Microbial communities are essential for maintaining forest soil quality a...

Changes in climate, land use, and land management impact the occurrence and severity of wildland fires in many parts of the world. This is particularly evident in Europe, where ongoing changes in land use have strongly modified fire patterns over the last decades. Although satellite data by the European Forest Fire Information System provide large-scale wildland fire statistics across European countries, there is still a crucial need to collect and summarize in-depth local analysis and understanding of the wildland fire condition and associated challenges across Europe. This article aims to provide a general overview of the current wildland fire patterns and challenges as perceived by national representatives, supplemented by national fire statistics (2009–2018) across Europe. For each of the 31 countries included, we present a perspective authored by scientists or practitioners from each respective country, representing a wide range of disciplines and cultural backgrounds. The authors were selected from members of the COST Action “Fire and the Earth System: Science & Society” funded by the European Commission with the aim to share knowledge and improve communication about wildland fire. Where relevant, a brief overview of key studies, particular wildland fire challenges a country is facing, and an overview of notable recent fire events are also presented. Key perceived challenges included (1) the lack of consistent and detailed records for wildland fire events, within and across countries, (2) an increase in wildland fires that pose a risk to properties and human life due to high population densities and sprawl into forested regions, and (3) the view that, irrespective of changes in management, climate change is likely to increase the frequency and impact of wildland fires in the coming decades. Addressing challenge (1) will not only be valuable in advancing national and pan-European wildland fire management strategies, but also in evaluating perceptions (2) and (3) against more robust quantitative evidence.

UDK 581.19:547.56]:582.736.3 The aim of this study was to determine the total concentrations of some phenolic compounds and antioxidant and antimicrobial activity of methanol extracts of different parts of Illyrian endemic Petteria ramentacea. Concentrations of phenolic compounds were determined with UV/VIS spectrophotometry. The antioxidant activity of plant extracts was determined by 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity. Antimicrobial activity of extracts was evaluated by measuring the inhibition's zone against six selected test bacteria and two fungi. The highest average total phenols concentrations were in seeds (10.78 mg GAE g-1 DW), root (10.51 mg GAE g-1 DW) and bark (10.40 mg GAE g-1 DW), and the lowest in inflorescences (2.99 mg GAE g-1 DW) and leaves (3.12 mg GAE g g-1 DW). The total flavonoids concentrations were determined only in leaves (8.25 mg CE g-1 DW) and in stem (5.66 mg CE g-1 DW). Both flavanols and proanthocyanidins (0.75 mg CE g-1 DW and 3.49 mg CE g-1 DW, respectively) were found only in leaves. Analysis of variance indicated presence of significant differences between total phenols and flavanols concentrations (p<0.05), and Duncan's test confirmed the presence of intraspecies variability according to their concentrations. The highest antioxidant activity (IC50) was observed for the seed's extract (6.86%) and the lowest for the bark’s (51.31%). All methanol extracts showed the most pronounced antibacterial activity against Staphylococcus epidermididis, and the lowest against S. aureus subsp. aureus. Antifungal activity against Candida albicans was moderate. Since Peteria ramentacea methanol extracts are potential natural antioxidant and antimicrobial preparations against selected microorganisms, it is necessary to continue with more detailed analysis.

The amount of the ash and cinder that is generated from thermoelectric energy production in Bosnia and Herzegovina exceeded 2.784 Mg for 2015 according to annual report of “Elektroprivreda BiH”. Electricity production is the greatest environmental ballast for the city of Tuzla. Excavation of coal and deposition of coal combustion products influence drastic and many times terminate degradation of natural landscapes and soil habitat. There are five coal ash disposal sites in the city covering an area of approximately 170 hectares. It is known that this artificial substrate is the main cause of soil contamination; water/groundwater contamination due to leaching toxins (effluents and process waters); dust dispersion; and toxins entering the food chain. The objective of our research study was to explore the adequate practices of stand remediation through compiling the data on properties of ash from five disposal sites in Tuzla area. Long term study determined that the major characteristics of coal ash and effluents at the disposals sites are high alkaline reaction (pH >10) and presence of metals with high potential for toxicity (Ni, Cr, As and B), which concentrations exceeded permitted limits. Based on study results, how model of site rehabilitation would work and how it can be incorporated by applying green infrastructure approach in spatial planning is discussed.

UDK 630*114:630*242(497.6) Large areas of European fir-beech forests are characteristic for the Dinaric Mountains and represent one of the most important forest ecosystems in the region. Such forests extend in high karst plateaus from the eastern Alps in SE Slovenia to the N Albanian massifs at the altitudes from 700 to 1200 (1500) m a.s.l. This is the area with a diverse landscape configuration. The bedrock is consisted of limestone, occasionally of dolomite limestone and dolomite. There are various soil conditions, where in a small area, a mosaic of Leptosols, Rendzic Leptosols, Chromic Cambisol, Calcaric and Chromic Luvisols occur. As climate conditions are very favourable for the growth of forests (high precipitation and air humidity), production function of wood is much more emphasized. Very little is known about the long-term effects of forest management and intensity of logging on soil organic matter quality and carbon stocks in these forest soils. Therefore, with an objective to understand better variations in soil properties, both in space and time, aiming to minimize the uncertainties of the SOC (soil organic carbon) and TN (total nitrogen) stocks, we have set up a research objects in silver fir-beech forests, in Slovenia (research plots in Kočevje, Snežnik and Trnovo) and Bosnia and Herzegovina (research plots on MT Bjelašnica). We analysed soil properties of the unmanaged and managed sites studying differences between treatments and also changes for the two years period of observations. Preliminary results from Slovenian sites show that the high intensity of logging (50 and 100% cut of growing stock) causes a decrease in SOC and TN contents, wider C/N ratio and higher pH values, with the largest level of alternations in the organic part of the soils. The study in Bosnia gave information on inherent SOC and TN concentrations in the organic and surface mineral soil, and also indicated no differences in soil properties between unmanaged and managed sites characterized by low (14-18%) intensities of logging.

UDK 631.416/.417:630*114(497.6) Elemental composition of the surface soil layers has a direct effect on soil productivity and an important role in the quality of the terrestrial ecosystems. Herein, soil has the function of a geochemical sink and natural buffer, controlling the release of contaminants to hydrosphere, atmosphere, and biota. Vertical distribution of HNO3 pressure digested concentrations of Na, K, Ca, Mg, Fe, Al, Mn, P, S, Cd, Co, Cu, Cr, Ni, Pb, Zn is determined in three rather common soil types: Cambisol, Dystric, Cambisol, Eutric and Fluvisol in central part of Bosnia and Herzegovina. Site differences, with the reference to soil parent material, dominantly influenced element distribution and accumulation. In addition to land-use, forest seedling production influenced significant (p<0.05) decrease of Ca in Ajdinovići, Mg in Žepče and S in all three sites in 0 to 30 cm soil depth. Summary data for element concentrations for this central region, reported with medians, were: 0.76 g/kg Na, 9.30 g/kg K, 3.54 g/kg Ca, 5.28 g/kg Mg, 27.9 g/kg Fe, 43.7 g/kg Al. 0,98 g/kg Mn, 0.5 g/kg P, 0.27 g/kg S, 3.46 mg/kg Cd, 18.4 mg/kg Co, 99.5 mg/kg, 24.7 mg/kg Cu, 65.1 mg/kg Ni, 30.6 mg/kg Pb, 90.7 mg/kg Zn.

SA@ETAK: U ovom ~lanku prikazano je istra`ivanje tri skupine stabala hibridne platane (Platanus acerifolia /Aiton/ Willd.) iz aleja sa Sarajevskog podru~ja, to~nije s lokalitetima: Ilid`a, Ned`ari}i, Dobrinja. Platane su zasa|enu u razli~itim razdobljima, po~etkom 20 stolje}a, potom osamdesetih godina pred Olimpijske igre u Sarajevu, te neposredno nakon domovinskog rata u Bosni i Hercegovini. Kao kontrola u ovom istra`ivanju uporabljena je isto~nja~ka platana (Platanus orientalis L.) podrijetlom sa Cipra. Uspore|ene su ~etiri mikrosatelitne (ccmp3, ccmp6, ccmp7, ccmp10) i jedna nekodiraju}a hloroplastna DNA regija (trnT-trnL) te jedna jezgrena (5S) regija. Na temelju dobivenih rezultata nije bilo mogu}e razlikovati istra`ivane jedinke. K l j u ~ n e r i j e ~ i : Hibridna platana (Patanus x acerifolia), DNA, mikrosateliti IZVORNI ZNANSTVENI ^LANCI – ORIGINAL SCIENTIFIC PAPERS UDK 630* 165 (001) [umarski list br. 7–8, CXXXII (2008), 337-341