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Query: "author" (Primož Simončič) .

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1.
Hoverflies (Diptera: Syrphidae) as biodiversity indicators for assessing urban forest habitats
Maarten De Groot, Primož Simončič, Andrej Verlič, Urša Vilhar, 2022, original scientific article

Abstract: Urban and peri-urban forests are important habitats for maintaining biodiversity in cities. In this paper, we report a method for using hoverflies as biodiversity indicators in urban forest habitats. As a case study, forest habitats in three peri-urban and urban forests were assessed and compared to rural forests in Slovenia. Rožnik (Ljubljana) was chosen as the urban forest site, Mestni log (Ljubljana) and Brdo (Kranj) were chosen as the peri-urban sites, and eight sites were chosen in rural forests in different ecoregions in Slovenia. Forest hoverfly species richness and the species composition of different biological traits were compared between the peri-urban forests, urban forest and rural forest sites. In addition, species richness was assessed for changes in response to weather conditions between years. The number of species with the investigated traits in the urban and peri-urban forests was within the range of the number of species observed in the rural forests. The number of saproxylic species was higher in the urban forest but lower in the peri-urban forests compared to the rural forests. The proportions of species with different feeding modes and different development times were similar between the peri-urban, urban and rural forests. The proportions of species with development times of less than 2 months or more than 1 year and of predatory species were similar in the urban and peri-urban forests but higher in the rural forests. The species composition of the other biological traits differed between the peri-urban, urban and rural forests. Species richness and abundance displayed large differences in phenological patterns between 2012 and 2013; these differences are related to differences in the minimum temperature for these years. The results are discussed in relation to forest management in urban forests, the usefulness of hoverflies as a biodiversity indicator and possible extrapolation to other species groups.
Keywords: biological traits, ecosystem services, forest management, saproxylic species, Syrphidae, urban forest
Published in DiRROS: 30.12.2022; Views: 276; Downloads: 151
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2.
Tree and stand growth differ among soil classes in semi-natural forests in central Europe
Andrej Bončina, Matija Klopčič, Vasilije Trifković, Andrej Ficko, Primož Simončič, 2023, original scientific article

Abstract: We determined the size of differences in stand and tree growth in semi-natural forests with respect to 16 reference soil groups. The forest area of Slovenia (11.8 thousand km2) was used as the study area, and reference soil units were derived from the national soil map at a 1:25,000 scale consisting of 10,781 polygons with an average size of 117.95 ha. Stand growth was defined as periodic stand basal area increment, while the growth of Norway spruce, silver fir, Scots pine, European beech and sessile oak trees was estimated by the periodic diameter increment of 238,349 dominant trees on 67,061 permanent sampling plots. A linear fixed-effects model and linear mixed-effect models were used for studying stand and tree growth in different site, stand and tree conditions. The soil unit was the dummy variable with Dystric Cambisols set as the reference category. Soil contributed 4.3 % to the explained variability of basal area increment and 4–27 % to the explained variability of the diameter increment of the five tree species. Soil was a stronger driver of stand and tree growth than climate or topography. Stand and tree species production rate on soil units was in the interval of −28 % to +5 % and −47 % to +14 % of that on the reference soil unit, respectively. Stand growth was the highest on Eutric Gleysols and the lowest on Histosols, and tree species generally exhibited the highest and the lowest growth rates on different soil units. We suggest that soil should be considered in growth models and studied interrelatedly with climatic, site and stand variables.
Keywords: reference soil groups, FAO soil unit, natural forest, stand growth, tree growth
Published in DiRROS: 29.12.2022; Views: 88; Downloads: 43
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3.
Organization and national legislation of the Slovenian forestry sector
Damjan Oražem, Primož Simončič, 2020, independent professional component part or a chapter in a monograph

Published in DiRROS: 19.10.2022; Views: 140; Downloads: 58
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4.
Varstvo tal
Primož Simončič, other educational material

Keywords: nastanek tal, procesi v tleh, lastnosti tal, klasifikacija tal, funkcije tal, podnebne spremembe, monitoring tal, informacijski sistemi, zakonodaja
Published in DiRROS: 16.08.2022; Views: 175; Downloads: 0
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Vzorčenje tal na travniški površini in v gozdu - prikaz dela na terenu
Primož Simončič, Daniel Žlindra, 2022, other monographs and other completed works

Keywords: vzorčenje tal, gozdovi, travnik, terensko delo, opis tal
Published in DiRROS: 06.06.2022; Views: 266; Downloads: 0

8.
Vaje - analize tal_2
Primož Simončič, Daniel Žlindra, 2022, other monographs and other completed works

Keywords: pedološki laboratorij, tla, analize tal, priprava vzorcev, kontrola
Published in DiRROS: 06.06.2022; Views: 259; Downloads: 0

9.
Vaje - analize tal_1
Primož Simončič, Daniel Žlindra, 2022, other monographs and other completed works

Keywords: pedološki laboratorij, tla, analize tal, priprava vzorcev, kontrola
Published in DiRROS: 06.06.2022; Views: 238; Downloads: 0

10.
Carbon flux and environmental parameters data from an eddy covariance tower in a mid-succession ecosystem developed on abandoned karst grassland in Slovenia (2012-2019)
Koffi Dodji Noumonvi, Klemen Eler, Dominik Vodnik, Primož Simončič, Mitja Ferlan, 2021, complete scientific database of research data

Abstract: This data set was used to estimate carbon fluxes by comparing eddy covariance tower (Long = 13.916701, Lat = 45.543491) measurements with vegetation indices based estimates.
Keywords: eddy covariance, GPP, NEE, empirical model, LUE model, vegetation photosynthesis model, vegetation indices
Published in DiRROS: 21.02.2022; Views: 351; Downloads: 265
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