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Perspektive obnove slovenskih gozdov v času podnebnih in družbenih sprememb
Boris Rantaša, Franc Perko, Gregor Božič, Marjana Westergren, Primož Simončič, Hojka Kraigher, 2023, strokovni članek

Povzetek: Trajnostno, sonaravno in večnamensko gospodarjenje s slovenskimi gozdovi je omogočilo ohranjeno biotsko raznovrstnost, ohranjen prilagoditveni potencial ter velik povprečni prirastek in lesno zalogo. Za trajnostno zagotavljanje funkcij gozdov bo potrebno prilagajanje na spreminjajoče se podnebne in družbene razmere. Osrednji ukrep prilagajanja gozdov na podnebne spremembe je povečevanje pestrosti, tudi genetske. Praktično vsi področni strateški, zakonodajni ter operativni dokumenti na nacionalni in evropski ravni prepoznavajo in vsebujejo pomen ohranjanja gozdnih genskih virov in obnove ter nege gozda za trajnostni razvoj in zagotavljanje funkcij gozdov. Gospodarjenje z gozdovi bo treba nadgraditi z ukrepi, ki vključujejo aktiven pristop pri obnovi in negi gozda s čim širšo paleto vrstno in genetsko raznolikih sadik gozdnih drevesnih vrst. V obdobju 2023–2026 bo za obnovo gozdov in semenarsko ter drevesničarsko dejavnost na letni ravni potencialno namenjenih pribl. pet milijonov evrov javnih sredstev. Za obnovo in nego gozda bo nujno zagotoviti stabilno in fleksibilno financiranje zagotavljanja gozdnega reprodukcijskega materiala ter izvedbo obnove gozda in razvoja panoge. Avtorji poudarjajo tudi pomen sodelovanja in skupnega nastopa različnih deležnikov v celotni verigi gozdnega reprodukcijskega materiala.
Ključne besede: obnova gozdov, podnebne spremembe, družbene spremembe, zakonodaja, strategije, finance, Slovenija
Objavljeno v DiRROS: 09.01.2024; Ogledov: 407; Prenosov: 137
.pdf Celotno besedilo (408,22 KB)

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The LANDSUPPORT geospatial decision support system (S-DSS) vision : operational tools to implement sustainability policies in land planning and management
Fabio Terribile, Marco Acutis, Antonella Agrillo, Erlisiana Anzalone, Sayed Azam-Ali, Marialaura Bancheri, Peter Baumann, Barbara Birli, Antonello Bonfante, Marco Botta, Mitja Ferlan, Jernej Jevšenak, Primož Simončič, Mitja Skudnik, 2023, izvirni znanstveni članek

Povzetek: Nowadays, there is contrasting evidence between the ongoing continuing and widespread environmental degradation and the many means to implement environmental sustainability actions starting from good policies (e.g. EU New Green Deal, CAP), powerful technologies (e.g. new satellites, drones, IoT sensors), large databases and large stakeholder engagement (e.g. EIP-AGRI, living labs). Here, we argue that to tackle the above contrasting issues dealing with land degradation, it is very much required to develop and use friendly and freely available web-based operational tools to support both the implementation of environmental and agriculture policies and enable to take positive environmental sustainability actions by all stakeholders. Our solution is the S-DSS LANDSUPPORT platform, consisting of a free web-based smart Geospatial CyberInfrastructure containing 15 macro-tools (and more than 100 elementary tools), co-designed with different types of stakeholders and their different needs, dealing with sustainability in agriculture, forestry and spatial planning. LANDSUPPORT condenses many features into one system, the main ones of which were (i) Web-GIS facilities, connection with (ii) satellite data, (iii) Earth Critical Zone data and (iv) climate datasets including climate change and weather forecast data, (v) data cube technology enabling us to read/write when dealing with very large datasets (e.g. daily climatic data obtained in real time for any region in Europe), (vi) a large set of static and dynamic modelling engines (e.g. crop growth, water balance, rural integrity, etc.) allowing uncertainty analysis and what if modelling and (vii) HPC (both CPU and GPU) to run simulation modelling ‘on-the-fly’ in real time. Two case studies (a third case is reported in the Supplementary materials), with their results and stats, covering different regions and spatial extents and using three distinct operational tools all connected to lower land degradation processes (Crop growth, Machine Learning Forest Simulator and GeOC), are featured in this paper to highlight the platform's functioning. Landsupport is used by a large community of stakeholders and will remain operational, open and free long after the project ends. This position is rooted in the evidence showing that we need to leave these tools as open as possible and engage as much as possible with a large community of users to protect soils and land.
Ključne besede: land degradation, land management, soil, spatial decision support system, sustainability
Objavljeno v DiRROS: 13.11.2023; Ogledov: 518; Prenosov: 252
.pdf Celotno besedilo (4,42 MB)
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National Forest Inventory (NFI) in Slovenia : purpose, role and use of results
Mitja Skudnik, Primož Simončič, 2023, prispevek na konferenci brez natisa

Ključne besede: national forest inventory, monitoring, developement of forests, national level, Slovenia
Objavljeno v DiRROS: 24.07.2023; Ogledov: 545; Prenosov: 203
.pdf Celotno besedilo (4,91 MB)

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Hoverflies (Diptera: Syrphidae) as biodiversity indicators for assessing urban forest habitats
Maarten De Groot, Primož Simončič, Andrej Verlič, Urša Vilhar, 2022, izvirni znanstveni članek

Povzetek: 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.
Ključne besede: biological traits, ecosystem services, forest management, saproxylic species, Syrphidae, urban forest
Objavljeno v DiRROS: 30.12.2022; Ogledov: 1774; Prenosov: 791
.pdf Celotno besedilo (1,40 MB)
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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, izvirni znanstveni članek

Povzetek: 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.
Ključne besede: reference soil groups, FAO soil unit, natural forest, stand growth, tree growth
Objavljeno v DiRROS: 29.12.2022; Ogledov: 695; Prenosov: 370
.pdf Celotno besedilo (2,23 MB)
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Organization and national legislation of the Slovenian forestry sector
Damjan Oražem, Primož Simončič, 2020, samostojni strokovni sestavek ali poglavje v monografski publikaciji

Objavljeno v DiRROS: 19.10.2022; Ogledov: 651; Prenosov: 251
.pdf Celotno besedilo (27,16 MB)

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