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13. Modelling dominant tree heights of Fagus sylvatica L. using function-on-scalar regression based on forest inventory dataMarkus Engel, Tobias Mette, Wolfgang Falk, Werner Poschenrieder, Jonas Fridman, Mitja Skudnik, 2023, izvirni znanstveni članek Povzetek: European beech (Fagus sylvatica L.) is an important tree species throughout Europe but shifts in its suitable habitats are expected in the future due to climate change. Finding provenances that are still economically viable and ecologically resilient is an ongoing field of research. We modelled the dominant tree heights of European beech as a trait reflecting growth performance dependent on provenance, climate and soil conditions. We derived dominant tree heights from national forest inventory (NFI) data from six European countries spanning over large ecological gradients. We performed function-on-scalar regression using hierarchical generalized additive models (HGAM) to model both the global effects shared among all provenances and the effects specific to a particular provenance. By comparing predictions for a reference period of 1981–2010 and 2071–2100 in a RCP 8.5 scenario, we showed that changes in growth performance can be expected in the future. Dominant tree heights decreased in Southern and Central Europe but increased in Northern Europe by more than 10 m. Changes in growth performance were always accompanied by a change in beech provenances, assuming assisted migration without dispersal limitations. Our results support the concept of assisted migration for the building of resilient future forests and emphasize the use of genetic data for future growth predictions.
Ključne besede: hierarchical GAMs, functional regression, Fagus sylvatica, provenance, assisted migration
Objavljeno v DiRROS: 21.03.2023; Ogledov: 461; Prenosov: 194
 Celotno besedilo (3,65 MB)
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14. Podlaga za izdelavo usmeritev pri gospodarjenju z navadno smreko v SlovenijiLuka Krajnc, Mitja Skudnik, Tom Levanič, Matjaž Čater, Aleksander Marinšek, Janez Zafran, 2022, izvirni znanstveni članek Povzetek: V prispevku predstavimo podlago za izdelavo usmeritev pri gospodarjenju z navadno smreko v Sloveniji. Izvedli smo več ločenih analiz z istim ciljem: pripraviti strokovno utemeljene in s podatki podprte usmeritve za gospodarjenje z navadno smreko v Sloveniji v prihodnjih desetletjih. Tako smo v tem prispevku združili rezultate meritev nacionalne gozdne inventure, analizo priraščanja smreke, analize vrstne pestrosti ter pregled osnutkov načrtov za gozdnogospodarska območja. Namen tega prispevka je predstavitev rezultatov štirih ločenih sklopov analiz podatkov, ki so predstavljali osnovo za izdelavo usmeritev pri gospodarjenju z navadno smreko, objavljenih v naslednjem prispevku.
Ključne besede: navadna smreka, podnebne spremembe, gospodarjenje
Objavljeno v DiRROS: 20.02.2023; Ogledov: 546; Prenosov: 173
Celotno besedilo (1,42 MB) |
15. Stanje slovenskih gozdov : poročilo o rezultatih nacionalne gozdne inventure 2021Mitja Skudnik, Jernej Jevšenak, Luka Krajnc, Gal Kušar, Anže Martin Pintar, 2023, elaborat, predštudija, študija Ključne besede: monitoring, nacionalna gozdna inventura, odmrla lesna biomasa, temeljnica, površina gozda, lesna zaloga, vzorčne ploskve, poročila
Objavljeno v DiRROS: 17.01.2023; Ogledov: 483; Prenosov: 0 |
16. Pridobivanje podatkov o spremembah zalog ogljika v živi in odmrli biomasi v gozdovih : vmesno poročilo (Mejnik 3) za: Javno naročilo: 430-204/2021/19Mitja Skudnik, Polona Hafner, Andrej Grah, Jernej Jevšenak, Gal Kušar, Luka Krajnc, Tom Levanič, Boštjan Mali, Anže Martin Pintar, Janez Zafran, 2022, elaborat, predštudija, študija Ključne besede: odmrla lesna biomasa, temeljnica, površina gozda, lesna zaloga, vzorčne ploskve, starost gozdov, kakovost stoječih dreves
Objavljeno v DiRROS: 17.01.2023; Ogledov: 526; Prenosov: 0 |
17. Land surface phenology from satellite data : technical reportUrška Kanjir, Ana Potočnik Buhvald, Mitja Skudnik, Liza Stančič, Krištof Oštir, 2022, elaborat, predštudija, študija Ključne besede: phenology, forest, remote sensing, MODIS, Sentinel-2, vegetation indices
Objavljeno v DiRROS: 29.12.2022; Ogledov: 446; Prenosov: 124
Celotno besedilo (4,52 MB) |
18. Common preferences of European small-scale forest owners towards contract-based managementArtti Juutinen, Elena Haeler, R. Jandl, Katharina Kuhlmey, Mikko Kurttila, Raisa Mäkipää, Tähti Pohjanmies, Lydia Rosenkranz, Mitja Skudnik, Matevž Triplat, Anne Tolvanen, Urša Vilhar, Kerstin Westin, Silvio Schueler, 2022, izvirni znanstveni članek Povzetek: The societal demands on forest management are becoming increasingly diverse, which will be reflected in decisions made by forest owners. We examined the willingness of private forest owners in Austria, Finland, Germany, Slovenia, and Sweden to participate in a contract-based payment scheme in which they were asked to apply a specific management strategy to promote either timber production or environmental goals. The preferences for the contract-based management and associated consequences in terms of profitability, biodiversity, carbon stock, and climate change-induced damages were addressed within a choice experiment. A majority of respondents across all countries agreed to participate in a payment scheme to promote environmental goals, while schemes purely targeted to increase wood production were found less attractive. Forest owners liked improvements in profitability and environmental attributes and disliked deterioration of these attributes. Differences among countries were found in the level of expected contract payments, and commonalities were found with respect to preferences towards environmental goals, including biodiversity and carbon stocks. Hence, new policies to target European forest subsidy to promote the provision of environmental goals would likely be acceptable.
Ključne besede: choice experiment, ecosystem services, forest policy, incentives, private forest owners
Objavljeno v DiRROS: 29.09.2022; Ogledov: 498; Prenosov: 269
Celotno besedilo (1,24 MB)
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19. Poročilo o spremljanju stanja gozdov za leto 2021 : vsebinsko poročilo o spremljanju stanja gozdov v skladu s Pravilnikom o varstvu gozdov (2009)Mitja Ferlan, Andrej Grah, Janez Kermavnar, Lado Kutnar, Nikica Ogris, Anže Martin Pintar, Matej Rupel, Primož Simončič, Mitja Skudnik, Urša Vilhar, Daniel Žlindra, 2022, končno poročilo o rezultatih raziskav Ključne besede: varstvo gozdov, monitoring, stanje gozdov, zdravstveno stanje krošenj, popis povzročiteljev poškodb, meteorološke meritve, osutost dreves, poročila, Slovenija
Objavljeno v DiRROS: 01.07.2022; Ogledov: 674; Prenosov: 237
Celotno besedilo (10,68 MB) |
20. What could be 3DForEcoTech COST Action contribution to National Forest Inventories : presented at the 3DForEcoTech workshop, 15.06.2022, PragueGal Kušar, Mitja Skudnik, Luka Krajnc, Anže Martin Pintar, 2022, prispevek na konferenci brez natisa Ključne besede: National Forest Inventory, dendrometry, improvement, field mensuration, Slovenia
Objavljeno v DiRROS: 28.06.2022; Ogledov: 748; Prenosov: 0 |
