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+ 2008 + 2009 + 2010 + 2011 + 2012 + 2013 + 2014 + 2015 + 2016 + 2017 + 2018 + 2019 + 2020 + 2021 + 2022 + 2023 + 2024 + 2025 1-2/2026 3-4/2026 new HR EN |
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| IZVORNI ZNANSTVENI ČLANCI | ||
| Dalibor Ballian, Vanja Daničić, Velibor Blagojević, Mirzeta Memišević Hodžić | https://doi.org/10.31298/sl.150.3-4.1 |
103 |
| Analysis of Phenotypic Traits of Beech and Sessile Oak in Selected Seed Stands in Bosnia and Herzegovina |  
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| This paper analyzes the structure of 15 beech seed stands and eight sessile oak seed stands registered in the seed object register of the Federation of Bosnia and Herzegovina and Republika Srpska, as well as the structure of seven beech seed stands and three sessile oak seed stands in the Federation of Bosnia and Herzegovina that had been evaluated but not registered. The paper also examines the most important characteristics of broadleaf trees used in mass selections, i.e., the selection of seed stands. A total of 19 phenotypic tree characteristics were used in the analysis of seed stands’ quality, including 16 descriptive traits that are critical in assessing the suitability of seed objects. Quantitative measurements included tree diameter, height and age. The qualitative structure of the selected beech and sessile oak seed stands in Bosnia and Herzegovina is generally satisfactory. However, targeted silvicultural interventions are necessary to further enhance stand structure and long-term sustainability. Given the significant ecological and vegetation diversity across Bosnia and Herzegovina, the current number of selected seed stands for both beech and sessile oak is insufficient and fails to support the effective conservation of the autochthonous genetic diversity of these important tree species. The spatial distribution of the existing seed stands only partially covers the genetic variability of the species, with satisfactory coverage observed only in the central regions of the country. This uneven distribution suggests a suboptimal utilization of the species’ genetic potential and underscores the need for the additional selection of seed stands. Priority should be given to small, isolated stands located in ecologically extreme conditions, ensuring a broader geographic and ecological representation – from east to west and from north to south. In addition to expanding the network of seed stands, individual selection within the existing stands of sufficient quality should be undertaken. In the forthcoming period, it is essential to select plus trees, test them, and establish seed plantations. Based on available molecular research, genetic regionalization should be carried out for beech and sessile oak. Seeds and planting material should be used according to genetic principles to support healthy and well-adapted forest populations. |
authors: Dalibor Ballian Vanja Daničić Velibor Blagojević Mirzeta Memišević Hodžić | |
| Martina Đodan, Sanja Perić, Andrija Barišić | https://doi.org/10.31298/sl.150.3-4.2 |
117 |
| Productivity of Pedunculate Oak Provenances in the Republic of Croatia – Importance for Forest Restoration |
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| The management of pedunculate oak (Quercus robur L.), one of Croatia’s most important tree species from both socio-economic and ecological perspective, is facing increasing challenges. Various biotic and abiotic threats are affecting overall forest stability. Given the significant variability in the morphological and physiological properties of this tree species, research into provenance productivity plays an important role for the forestry sector. Therefore, this study analyses the productivity of 16 pedunculate oak provenances on two sites in Croatias lowlands: Gajno in Central Croatia and Slavir in Eastern Croatia. Both trials were established in 1988 in a randomised block design in four repetitions by the Croatian Forest Research Institute. Data were collected from 2017 to 2025 (diameter at breast height (DBH) and tree height (h)). Tree volume (v) was calculated, and descriptive statistics, RM-ANOVA, MANOVA, and Tukey post hoc tests were used for data analysis. The results revealed statistically significant differences in volume in the Gajno site, with Velika Gorica provenances exhibiting the highest productivity across the studied years. Provenances Gunja (in 2017), Motovun (in 2021), and Morović (in 2023) displayed the lowest values. In the Slavir site, the highest productivity was recorded in the Guševac provenance, while the lowest was observed in the Velika Gorica provenance across the studied years, even though a statistically significant difference was not proven. Analysis between the two sites confirmed statistically significant differences, with Slavir showing higher productivity. Since the local provenances showed the highest volume, it is recommended to use them for forest restoration programs in the Croatian lowlands. Attention should also be given to the Vrbanja provenance, which displayed above-average volume at both sites, indicating good adaptability to a wider range of site conditions. The findings highlight the importance of scientifically based provenance selection for forest restoration programs, particularly in the context of climate change adaptation. Continuous monitoring and silvicultural measures are imperative for enhancing resilience and ensuring the long-term sustainability of achieving optimal provenance productivity for a given site. |
authors: Martina Đodan ŠL Sanja Perić ŠL Andrija Barišić | |
| Dragan Roganović, Filip Vujović | https://doi.org/10.31298/sl.150.3-4.3 |
127 |
| Application of the Maxent Model in Habitat Suitability Assessment for Rosalia alpina (Linnaeus, 1758) in Montenegro |
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| This study applies the Maxent model to predict the potential habitat suitability of the endangered saproxylic beetle Rosalia alpina in Montenegro. The model identified temperature (TEMP) and near-surface relative humidity (NSRH) as the dominant predictors influencing the species’ distribution, followed by vegetation type (VEG) and topographic variables such as slope (SLP) and aspect (ASP). The model achieved good predictive accuracy, with an average test AUC of 0.798 ± 0.012 across five replicates, confirming its robustness and reliability. The resulting potential habitat suitability map indicates that the central and north mountainous regions of Montenegro represent the most suitable areas, corresponding closely with known field observations. These findings highlight the importance of preserving structurally diverse deciduous forests and provide a valuable basis for spatially targeted conservation and sustainable forest management strategies for R. alpina in Montenegro. However, spatial overlap analysis showed that only about 18% of highly suitable (potential) habitats are located within nationally protected areas, and around 20% within the proposed Emerald network. This indicates that a considerable portion of potentially suitable habitats remain unprotected, emphasizing the need to strengthen and expand the existing conservation frameworks and to prioritize these areas for inclusion in the future Natura 2000 network, ensuring effective long-term protection of the species and its key forest habitats. |
authors: Dragan Roganović Filip Vujović | |
| Fahrettin Tilki, Omer Er | https://doi.org/10.31298/sl.150.3-4.4 |
135 |
| Influence of Container Type and Growing Media on Seedling Growth of Pinus sylvestris in the Nursery |
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| Type of container and growing media are two important factors that affect seedling quality. The present study aimed to evaluate the effects of the growing media (local peat sources and Finnish peat) and Enso tube containers (type with vertical slits and rocket type) on the morphological attributes of two-year-old container-grown Pinus sylvestris L. seedlings using a completely randomised block experimental design in the nursery. Both container types and growing media significantly affected some seedling morphological attributes such as seedling height (SH), root collar diameter (RCD), the Dickson quality index (DQI), shoot and root dry weights (SDW and RDW, respectively), and sturdiness quotient (SQ) of P. sylvestris seedlings. When the containers were evaluated, the fixed Enso container type with greater volumes, which has vertical slits on the sidewalls, gave better results in terms of most measured seedling morphological characteristics than the Enso-rocket container type with smooth walls. It was also determined that the growing media significantly affected P. sylvestris seedlings’ morphological indices, and low growing media acidity because high local peat pH decreased some morphological quality attributes of P. sylvestris seedlings. The results suggest that lowering local peat pH can increase the potential of local peat as a Finnish peat substitute in container growing media for P. sylvestris seedling production. |
authors: Fahrettin Tilki Omer Er | |
| PREGLEDNI ČLANCI | ||
| Krunoslav Teslak, Karlo Beljan, Tomislav Čavlović, Karlo Petrinović, Jura Čavlović | https://doi.org/10.31298/sl.150.3-4.5 |
143 |
| Antun Tomićs Rational Forest Management Method as an Example of Adaptive Forest Management with the Goal of Establishing Spatial-Temporary Sustainability |
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| In the Republic of Croatia, forest management traditionally follows an even-aged forest management approach based on the age-class method for determining allowable cut and forest management planning. This approach is often, and unjustifiably, classified within European categorizations of forest management methods as being more or less distant from close-to-nature forestry. In fact, even-aged forest management in Croatia is characterized by adaptive planning of allowable cut, which is based on theoretical age-class area, stand regeneration priorities, stand structure, the need for silvicultural treatments, and the long-term establishment and maintenance of sustainable management. Moreover, considering the relatively small average stand size of around 15 hectares and the predominance of natural self-stand regeneration, even-aged management—despite all climatic, health, and economic challenges—can be promoted as a close-to-nature forestry. The introduction of an adaptive management in even-aged forests was initiated in the 19th century by the Croatian forestry expert and scientist Antun Tomić, through his own forest regulation method called the “rational method”, which was based on forest area, actual timber volume, and increment. The method represents a resistance to the imposed and unrealistic demands for allowable cut based on theoretical volume increment (the so-called normal utilization factor). This is particularly unrealistic in forests with a high proportion of overmature and mature stands, accumulated timber stocks, and relatively low volume increment. Tomić’s “rational method” combines Cotta’s area-based control method with Hundeshagen’s normal utilization factor method. It is adapted for application in forests with non-balanced age structures and, through the deliberate extension of stand cutting ages, gradually leads to the establishment of forest normality and sustainable yields (balanced even-aged forest structure). It can be considered as a transitional method toward the modern combined age-class method, in which stands ready for regeneration are assigned to the first ten-year period. Furthermore, regeneration allowable cut is determined based on a comparison of the actual and theoretical distribution of stand area, timber stocks, and volume increment by age classes, while considering broad ecological and economic conditions. Modern forest measurement techniques, both classical and remote-sensing-based, together with advances in modeling, programming, and artificial intelligence, allow for highly precise and dynamic forest management planning. High-quality forest inventory databases, combined with forest development simulators and forest management planning support systems (FMPS), enable intensive and flexible planning, as well as evaluation of possible scenarios—including different climate scenarios. This makes it possible to select the most favorable outcomes and/or avoid unfavorable developments in forest growth or natural resource management in general. In this context, Tomić’s method should be recognized as a significant historical approach to forest regulation, serving as a foundation for the development of modern, adaptive, and objective forest management planning. |
authors: Krunoslav Teslak ŠL Karlo Beljan ŠL Tomislav Čavlović Karlo Petrinović Jura Čavlović ŠL | |