1. First finding of soil-borne cereal mosaic virus (SBCMV) infecting wheat in SloveniaIrena Mavrič Pleško, Barbara Grubar, Meta Urbančič Zemljič, Janja Lamovšek, Eva Kovačec, 2025, drugi znanstveni članki Ključne besede: plant viruses, mosaci virus, wheat, soil-borne virus, soil-borne cereal mosic vrus (SBCMV), SBCMV
Objavljeno v DiRROS: 07.05.2025; Ogledov: 261; Prenosov: 87
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2. Soil corrosion mechanism and corrosion rate model for long-distance pipeline joints in the R-K region of ChadLei Liu, Liang Ma, Haibin Han, Chao Zhang, Zhen Du, Zhenhuan Zhang, Minggang Li, Yanpeng Cao, Liu Chenglei, Weilong Liu, 2025, izvirni znanstveni članek Ključne besede: soil corrosion, CO2, corrosion mechanism, corrosivity model
Objavljeno v DiRROS: 24.04.2025; Ogledov: 155; Prenosov: 85
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3. Runoff and evapotranspiration–precipitation ratios as indicators of water regulation ecosystem services in urban forestsUrša Vilhar, 2025, izvirni znanstveni članek Povzetek: As a form of green infrastructure, urban forests play a key role in the provision of hydrological ecosystem services (ESs) in cities. Understanding how urban forest structure and soil properties influence water regulation ESs is crucial for managing and planning green infrastructure in cities. We analysed two indicators—the runoff to precipitation (Q/P) and the evapotranspiration to precipitation (ETP/P) ratios—for five different urban forests. We used the hydrological model Brook90 over 16 years to simulate runoff, evapotranspiration, canopy interception, transpiration and soil evaporation. The results showed that mixed forests have the highest water retention capacity, with the lowest Q/P (0.41) and the highest ETP/P (0.59). In contrast, riparian deciduous forests had the lowest water retention capacity, with the highest Q/P (0.75) and the lowest ETP/P (0.25). Both indicators showed similar annual and seasonal results. However, Q/P showed strong inter-annual variation and a strong correlation with precipitation, while ETP/P remained consistent despite precipitation fluctuations in the observed years. In conclusion, the ETP/P ratio is better suited to assess the water regulation ES of urban forests.
Ključne besede: stand structure, tree species composition, soil properties, hydrological model Brook90, urban ecosystems, precipitation, transpiration, urban green space, urban green infrastructure
Objavljeno v DiRROS: 14.04.2025; Ogledov: 303; Prenosov: 101
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4. Genetic and phenotypic characterization of global Lupinus albus genetic resources for the development of a CORE collectionUmesh Kumar Tanwar, Magdalena Tomaszewska, Katarzyna Czepiel, Mohamed Neji, Humaira Jamil, Lorenzo Rocchetti, Alice Pieri, Elena Bitocchi, Elisa Bellucci, Barbara Pipan, Vladimir Meglič, Magdalena Kroc, Roberto Papa, Karolina Susek, 2024, drugi sestavni deli Ključne besede: food grain legume, seed protein, adaptability, climatic conditions, soil conditions, cultivars, phenotypically diverse germplasm
Objavljeno v DiRROS: 09.04.2025; Ogledov: 200; Prenosov: 106
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5. Some experience in numerical modelling of unsaturated slope instabilitiesJosif Josifovski, Stanislav Lenart, 2016, objavljeni znanstveni prispevek na konferenci Povzetek: In the past couple years, the region of South-East Europe is subjected to gust rainfall events activating many landslides which cause significant material and human losses. To revaluate the existing risk maps and set new standards some old case histories are revaluated. This paper presents two case histories of landslide instabilities subjected to excess climatic perturbations, gust rainfall, namely the «Stanjevci» cut-slope near the railway line in North-East of Slovenia; and the «Ramina» a natural landslide in urban area near the city of Veles in Central Macedonia. They are briefly described later to be analysed using coupled thermo-mechanical calculations. They are subjected to specific short and gusting rainfall considered as possible trigger. Hence, van Genuchten's hydraulic model is used in combination with elastoplastic material models. The results are summarized with critical comments regarding the mathematical formulation used to describe atmospheric-soil interaction and the influence of different aspects on the accuracy is discussed briefly.
Ključne besede: numerical, unsaturated soil, slope stability analysis, climate effect
Objavljeno v DiRROS: 04.03.2025; Ogledov: 194; Prenosov: 105
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6. Tree species effects on SOC and soil microbial properties : case study from beech and spruce stands in Bohinj Valley, SloveniaPeter Horvat, Anton Govednik, Matija Klopčič, Marjetka Suhadolc, 2025, izvirni znanstveni članek Povzetek: Climate change and forest management strategies in Central Europe are driving the decline of spruce in forests, while beech is expected to expand its range. Beech is seen as a key species for converting spruce-dominated forests to mixed forests, aiming to improve forest resilience. The objective of our study was to examine the long-term effects of a spruce stand and a beech stand that transitioned from a conifer-dominated stand on soil organic carbon (SOC), microbial biomass and the abundance of total bacteria, archaea and fungi. In contrast to most other studies, we used a horizon-based soil sampling approach, which provides better insights into how changes in soil chemical properties influence microbial community composition, and consequently, microbial-based processes like C-sequestration. Composite soil samples from two depths, corresponding to the A horizon (approx. 0–10 cm) and the B horizon (approx. 10–20 cm), representing the entire shallow soil profile, were collected from a European beech (Fagus sylvatica L.) stand and a Norway spruce (Picea abies [L.] Karst.) stand sharing the same soil group on limestone and dolomite. In the top A horizon, the spruce stand exhibited significantly higher levels of total organic carbon (C), total nitrogen (N), dissolved organic C and dissolved N compared to the beech stand (11.5% vs. 9.0%; 0.63% vs. 0.52%; 15.3% vs. 9.5 mg C kg−1 dry soil; 2.9 vs. 1.6 mg N kg−1 dry soil; respectively). The beech stand had significantly higher base saturation (84.6%) in the A horizon compared to the spruce stand (43.6%), primarily due to increased levels of exchangeable Ca2+. The soil pH did not show statistically significant differences between the stands, indicating a strong buffering capacity of the soil and its slow response to changes in the composition of tree species in the stand. Microbial biomass C (MBC) in the A horizon was significantly higher in the spruce than in the beech stand (585 vs. 492 mg C kg−1 dry soil, respectively). While the abundance of bacteria and fungi did not differ significantly between the stands, a higher abundance of archaea was observed in the spruce compared to the beech stand. Total SOC stock in the entire soil profile (A and B horizons) was significantly lower in the beech than in the spruce stand (71.20 ± 3.08 t ha−1 and 85.35 ± 2.84 t ha−1, respectively), similar to the total MBC stock (0.42 ± 0.01 t ha−1 and 0.48 ± 0.02 t ha−1, respectively), with no significant differences observed in the B horizon. In conclusion, 20 years after the transition to a beech stand, significant differences in soil properties compared to spruce stand remain limited and confined to the A horizon. This reflects the gradual nature of changes driven by the litter input. The transition from a conifer-dominated to a beech-dominated stand leads to a reduction in SOC stocks. In comparison to beech-dominated stands, mixed forests-including both broadleaf and conifer species-may offer a promising strategy to mitigate SOC loss while enhancing forest resilience to climate change and natural disturbances.
Ključne besede: archaea, bacteria, carbon sequestration, fungi, microbial biomass, soil base saturation, SOC stock
Objavljeno v DiRROS: 18.02.2025; Ogledov: 297; Prenosov: 144
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7. Application of self-organizing maps to explore the interactions of microorganisms with soil properties in fruit crops under different management and pedo-climatic conditionsFrancesca Antonucci, Simona Violino, Loredana Canfora, Malgorzata Tartanus, Ewa M. Furmanczyk, Sara Turci, Maria Grazia Tommasini, Nika Cvelbar Weber, Jaka Razinger, Morgane Ourry, Samuel Bickel, Thomas A. J. Passey, Anne Bohr, Heinrich Maisel, Massimo Pugliese, Francesco Vitali, Stefano Mocali, Federico Pallottino, Simone Figorilli, Corrado Costa, Eligio Malusà, 2025, izvirni znanstveni članek Povzetek: Self-organizing maps (SOMs) are a class of neural network algorithms able to visually describe a high-dimensional dataset onto a two-dimensional grid. SOMs were explored to classify soils based on an array of physical, chemical, and biological parameters. Methods: The SOM analysis was performed considering soil physical, chemical, and microbial data gathered from an array of apple orchards and strawberry plantations managed by organic or conventional methods and located in different European climatic zones. Results: The SOM analysis considering the “climatic zone” categorical variables was able to discriminate the samples from the three zones for both crops. The zones were associated with different soil textures and chemical characteristics, and for both crops, the Continental zone was associated with microbial parameters—including biodiversity indices derived from the NGS data analysis. However, the SOM analysis based on the “management method” categorical variables was not able to discriminate the soils between organic and integrated management. Conclusions: This study allowed for the Soil Syst. 2025, 9, 10 https://doi.org/10.3390/soilsystems9010010 Soil Syst. 2025, 9, 10 2 of 14 discrimination of soils of medium- and long-term fruit crops based on their pedo-climatic characteristics and associating these characteristics to some indicators of the soil biome, pointing to the possibility of better understanding the interactions among diverse variables, which could support unraveling the intricate web of relationships that define soil quality.
Ključne besede: apple, neural networks, soil microbiome diversity, strawberry
Objavljeno v DiRROS: 03.02.2025; Ogledov: 297; Prenosov: 92
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8. Use of marginal and recycled fills for GRS structuresStanislav Lenart, Siva Ram Karumanchi, 2024, objavljeni znanstveni prispevek na konferenci Povzetek: Marginal and recycled fills are increasingly being utilized in geosynthetic reinforced soil (GRS) structures like retaining walls and bridge abutments due to their cost- effectiveness and sustainability. Marginal fills, including locally available soils with less desirable engineering properties, can be used when properly engineered with geosynthetics to enhance strength and stability. Recycled fills, such as recycled concrete, asphalt, various ashes have been proved already as an eco-friendly alternative to conventional aggregates. However, these practices involve thorough characterization and testing of marginal and recycled fills to ensure their suitability for specific applications. Advanced geotechnical analyses, including laboratory tests and numerical modeling, help determine the optimal blend of materials and reinforcement for achieving desired performance criteria. Experiences with the use of residues from deinking paper industry and river debris as backfill material are presented. Time effect on the compaction and deformation characteristics as well as the impact of high basicity of backfill material have been considered.
Ključne besede: soil reinforcement, reinforced fill structures, GRS abutments, residues from paper industry, river debris
Objavljeno v DiRROS: 21.01.2025; Ogledov: 360; Prenosov: 146
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9. Numerical evaluation of suction effects and groundwater table variations on long-term pavement subgrade performanceSiva Ram Karumanchi, Anirban Mandal, Stanislav Lenart, 2024, izvirni znanstveni članek Povzetek: Over the past few decades, flexible pavements across the globe have seen a significant reduction in their service life due to climate changes. The flexible pavements with unsaturated sub- grades undergo volumetric changes during the drying and wetting phases, affecting their long-term deformation behavior. These phases cause significant variations in matric suction and groundwater table depth. This study employs a coupled pore pressure-deformation analysis on flexible pavements to investigate the impact of groundwater table depth and suction variations in unsaturated subgrades. Finite-element simulations using the Abaqus and developed USDFLD code were validated against literature data. Sensitivity analysis was conducted by varying the suctions in subgrades during drying and subsequent wetting to evaluate the groundwater table depth. Furthermore, under heavy cyclic wheel loading, pavement-deformation analysis was conducted to investigate the influence of subgrade suction. The findings demonstrate that, after an initial drying phase at 5000 kPa suction, wetting over 180 days caused the groundwater level to rise from 5.45 m beneath the subgrade to the surface. This led to a 98% increase in surface-vertical deformations due to cyclic wheel loading after 180 days of wetting compared to the deformations during the drying phase at the same suction level. This assessment of groundwater-depth variations and long-term deformation behavior with the impact of suction improves the design and sustainability of flexible pavements.
Ključne besede: flexible pavement, unsaturated soil, suction, finite-element method
Objavljeno v DiRROS: 21.01.2025; Ogledov: 234; Prenosov: 163
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10. The effect of forest gaps on the diversity and composition of bacterial communities in mixed-type forest soils across the Carpathian mountainsNejc Suban, Olivera Maksimović, Nataša Šibanc, Tijana Martinović, Eva Dařenová, Matjaž Čater, Tine Grebenc, 2024, izvirni znanstveni članek Povzetek: Mixed forests of European beech (Fagus sylvatica L.) and silver fir (Abies alba Mill.) play a vital ecological role in Central and South-Eastern Europe. This study investigates the diversity and composition of soil bacterial communities in these forests, focusing on rhizosphere and bulk soils under varying canopy structures. Soil samples were collected from eight sites along the Carpathian Mountains, including managed forests and the remnants of old growth. Metabarcoding of bacterial communities revealed that alpha diversity (species richness, Shannon index, and evenness) was significantly affected by sampling location but not by forest canopy structure or soil type (rhizosphere and bulk soil). The lowest bacterial diversity was found in the old-growth forest of the Beskidy region, while the highest was recorded in managed forest in Vrancea. Beta diversity analyses showed minimal variation between rhizosphere and bulk soil bacterial communities, with geographic distance being the strongest predictor of community composition. Actinobacteriota and Proteobacteria were the dominant phyla across all sites, with higher relative abundance of Actinobacteriota in all rhizosphere samples compared to bulk soil. Complex combinations of various environmental conditions at each sampling location, including soil parameters (mainly pH and C:N ratio), the age of forest gaps, the type and intensity of disturbances, and species composition of above-ground vegetation, can strongly affect soil bacterial communities. A closer examination of additional environmental variables would be necessary to better explain the observed differences in the diversity and composition of bacterial communities.
Ključne besede: forest gaps, forest management, soil microbiome, soil, rhizosphere, Carpathians, temperate forest
Objavljeno v DiRROS: 30.12.2024; Ogledov: 999; Prenosov: 302
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