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Karlo Beljan
Department of Forest Inventory and Management, Faculty of Forestry and Wood Technology, University of Zagreb, 10000 Zagreb, Croatia

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Journal article
Published: 16 August 2021 in Sustainability
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The environmental, social and economic potential of Dinaric uneven-aged forests along with the complex stand dynamics influenced by different long-term management approaches and environmental factors require comprehensive forest monitoring. This study aimed to explore differences in the current status and recent past dynamics of stand structures between unmanaged and managed mixed fir-beech forests in the Croatian part of the Dinaric Alps using large-scale data from an established monitoring system. From the 74 permanent sample plots distributed within the forest type measured in 2008 and re-measured in 2019, we stratified four strata (types of management regimes): (1) forests out of regular management and tree harvest for at least 30 years, (2) managed state forests on carbonate bedrock, (3) managed state forests on non-carbonate bedrock and (4) managed private forests. In each sample plot, 34 structural attributes were computed to assess indicators of their current status and recent past dynamics of stands in the studied forests. An increasing Q shape diameter distribution with a high number of large and very large trees characterize unmanaged forests and managed forests on non-carbonate bedrock. In managed state forests and private forests, variable (rotated sigmoid) and constant (negative exponential) results were obtained, respectively. Principal component analysis (PCA) distinguished managed and unmanaged forests with decreasing harvest volume and recruitment, increasing basal area, number of very large trees, average diameter at breast height (DBH), crown defoliation of firs and basal area of died beech trees. The current structure, recent and expected stand dynamics in the unmanaged forests (accumulation of standing volume, increase of large diameter trees and large snags, large share of beech, large mean DBH) can be recognized as old-growth attributes. The differences between the studied forest types, potential of both unmanaged and state managed fir-beech forests and approaches to sustain multifunctional forest management in the Dinaric region were discussed.

ACS Style

Jura Čavlović; Marijana Andabaka; Mario Božić; Krunoslav Teslak; Karlo Beljan. Current Status and Recent Stand Structure Dynamics in Mixed Silver Fir—European Beech Forests in Croatian Dinarides: Are There Differences between Managed and Unmanaged Forests? Sustainability 2021, 13, 9179 .

AMA Style

Jura Čavlović, Marijana Andabaka, Mario Božić, Krunoslav Teslak, Karlo Beljan. Current Status and Recent Stand Structure Dynamics in Mixed Silver Fir—European Beech Forests in Croatian Dinarides: Are There Differences between Managed and Unmanaged Forests? Sustainability. 2021; 13 (16):9179.

Chicago/Turabian Style

Jura Čavlović; Marijana Andabaka; Mario Božić; Krunoslav Teslak; Karlo Beljan. 2021. "Current Status and Recent Stand Structure Dynamics in Mixed Silver Fir—European Beech Forests in Croatian Dinarides: Are There Differences between Managed and Unmanaged Forests?" Sustainability 13, no. 16: 9179.

Original research
Published: 18 December 2019 in Small-scale Forestry
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This paper presents a comprehensive financial analysis of the investment potential of seven private forest categories in the Republic of Croatia (total study area of 268,072 ha). It covers the period from 2018 to 2048 and includes forest purchase costs, management simulation, timber transport to mills, timber processing and veneer production, and finally the selling of sawmill, veneer and forest products. Data from the Croatian National Forest Inventory and forest habitats map were used as a basis for analyses. Spatial data on private forests, roads and timber process plants at the national level were also integrated into the analyses. For the forest management simulation, the MOSES 3.0 simulator was used, and the QGis 3.4 software was used for spatial analyses of forests, roads and mils. Based on data from several world stock exchanges that cover companies of the forestry sector, a real (inflation-free) discount rates were used. The financial analyses showed which forest categories have positive investment potential and under which conditions. Results pointed out that multi-aged European beech forests have the highest internal rate of return (8.45%) and are the only one which would meet the expectations of a financially rational investor using criteria of a risk-adjusted inflation-free discount rate of 8%.

ACS Style

Karlo Beljan; Jura Čavlović; Josip Ištvanić; Denis Dolinar; Kruno Lepoglavec. Investment Potential of Private Forests in Croatia. Small-scale Forestry 2019, 19, 19 -38.

AMA Style

Karlo Beljan, Jura Čavlović, Josip Ištvanić, Denis Dolinar, Kruno Lepoglavec. Investment Potential of Private Forests in Croatia. Small-scale Forestry. 2019; 19 (1):19-38.

Chicago/Turabian Style

Karlo Beljan; Jura Čavlović; Josip Ištvanić; Denis Dolinar; Kruno Lepoglavec. 2019. "Investment Potential of Private Forests in Croatia." Small-scale Forestry 19, no. 1: 19-38.

Journal article
Published: 24 October 2018 in Šumarski list
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Gospodarenje šumama u Hrvatskoj je pretežito koncentrirano i usmjereno prema šumama u državnom vlasništvu, koje je stoga obilježeno stalnošću i dosljednošću planiranja i provedbe postupaka gospodarenja, te se provode načela održivog gospodarenja na svim razinama. Nasuprot tomu, privatne šume su uslijed povijesnih okolnosti te male zastupljenosti i usitnjenosti bile značajno zapostavljene sve do nedavno. Stoga je cilj ovog rada analizirati i prikazati postojeća obilježja privatnih šuma, šumoposjeda i šumoposjednika, kao i okolnosti gospodarenja tj. institucionalnog i regulatornog okvira u kojemu se ono odvija. Površinski udio od 24% i drvnu zalihu od 156 m3/ha uz bogatstvo vrstama i razvojnim stadijima čini privatne šume vrlo vrijednim prirodnim resursom. Iako je posljednjih godina ostvaren značajni napredak, neriješeni imovinsko-pravni odnosi, nedorečen Zakonski okvir te nepovoljna sociološka obilježja šumoposjednika (velik udio starije populacije i niska razina obrazovanja) otežavaju daljnje unaprjeđenje gospodarenja. Za razliku od katastarske baze podataka anketni upitnici vrijedan su izvor informacija o obilježjima šumoposjeda i šumoposjednika, poglavito za znanstvena istraživanja. Prosječna obilježja šumoposjednika prikazana u ovome radu (prosječna dob od 60 godina i razmjerno niska razina obrazovanja) nisu ohrabrujuća. Međutim, ipak bi donošenje šumarskih politika trebalo biti utemeljeno na spoznajama o tipovima i stavovima šumoposjednika, posebno onih koji su spremni aktivno se baviti šumarstvom. Pri tome jasno treba razdvojiti šumoposjednika koji gospodari šumom i stavlja šumske proizvode na tržište (šumoposjednici upisani u Upisnik) i vlasnika sitnih šumskih čestica koji šumu u većoj ili manjoj mjeri koriste za vlastite potrebe. Poseban problem planiranja uravnoteženog i održivog gospodarenja je postojeći usporedni sustav planiranja i gospodarenja razdvojen prema vlasništvu. Objedinjavanjem svih javnih nadležnosti nad šumama u jedinstvenu instituciju uz ustrojavanje većeg broja šumskogospodarskih područja omogućilo bi ispunjavanje zahtjeva potrajnog gospodarenja i održivosti šuma uz ostvarivanje dugoročnih javnih interesa. Za učinkovitu i potpunu uspostavu sveobuhvatnog i potrajnog gospodarenja šumama potrebno je od strane svih dionika usvajanje spoznaja o specifičnostima gospodarenja privatnim šumama, uključujući i primjenu dobivenih rezultata provedenih znanstvenih istraživanja.

ACS Style

Krunoslav Teslak; Jura Čavlović; Karlo Beljan; Marijana Žunić. Stanje i izazovi gospodarenja privatnim šumama u Hrvatskoj u postojećim ekološkim i sociološkim okolnostima. Šumarski list 2018, 142, 459 -470.

AMA Style

Krunoslav Teslak, Jura Čavlović, Karlo Beljan, Marijana Žunić. Stanje i izazovi gospodarenja privatnim šumama u Hrvatskoj u postojećim ekološkim i sociološkim okolnostima. Šumarski list. 2018; 142 (9-10):459-470.

Chicago/Turabian Style

Krunoslav Teslak; Jura Čavlović; Karlo Beljan; Marijana Žunić. 2018. "Stanje i izazovi gospodarenja privatnim šumama u Hrvatskoj u postojećim ekološkim i sociološkim okolnostima." Šumarski list 142, no. 9-10: 459-470.

Journal article
Published: 20 October 2015 in South-east European forestry
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ACS Style

Karlo Beljan; Mislav Vedriš; Stjepan Mikac; Krunoslav Teslak. Generating Virtual Even-Aged Silver Fir Stand Structure Based on the Measured Sample Plots. South-east European forestry 2015, 7, 1 .

AMA Style

Karlo Beljan, Mislav Vedriš, Stjepan Mikac, Krunoslav Teslak. Generating Virtual Even-Aged Silver Fir Stand Structure Based on the Measured Sample Plots. South-east European forestry. 2015; 7 (2):1.

Chicago/Turabian Style

Karlo Beljan; Mislav Vedriš; Stjepan Mikac; Krunoslav Teslak. 2015. "Generating Virtual Even-Aged Silver Fir Stand Structure Based on the Measured Sample Plots." South-east European forestry 7, no. 2: 1.

Journal article
Published: 24 March 2014 in South-east European forestry
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SEEFOR - South-East European Forestry

ACS Style

Karlo Beljan; Stjepan Posavec; Krešimir Jerčić. Economic Valuation of Urban Trees: Ribnjak Park Case Study, Zagreb. South-east European forestry 2014, 6, 1 .

AMA Style

Karlo Beljan, Stjepan Posavec, Krešimir Jerčić. Economic Valuation of Urban Trees: Ribnjak Park Case Study, Zagreb. South-east European forestry. 2014; 6 (1):1.

Chicago/Turabian Style

Karlo Beljan; Stjepan Posavec; Krešimir Jerčić. 2014. "Economic Valuation of Urban Trees: Ribnjak Park Case Study, Zagreb." South-east European forestry 6, no. 1: 1.

Journal article
Published: 31 December 2012 in South-east European forestry
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ACS Style

Stjepan Posavec; Karlo Beljan; Nina Herceg; Špela Pezdevšek Malovrh. Contingency Valuation of Croatian Arboretum Opeka. South-east European forestry 2012, 3, 97 -101.

AMA Style

Stjepan Posavec, Karlo Beljan, Nina Herceg, Špela Pezdevšek Malovrh. Contingency Valuation of Croatian Arboretum Opeka. South-east European forestry. 2012; 3 (2):97-101.

Chicago/Turabian Style

Stjepan Posavec; Karlo Beljan; Nina Herceg; Špela Pezdevšek Malovrh. 2012. "Contingency Valuation of Croatian Arboretum Opeka." South-east European forestry 3, no. 2: 97-101.

Journal article
Published: 31 December 2011 in South-east European forestry
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SEEFOR - South-East European Forestry

ACS Style

Stjepan Posavec; Karlo Beljan; Silvija Krajter; Dario Peršun. Calculation of Economic Rotation Period for Even-Aged Stand in Croatia. South-east European forestry 2011, 2, 109 -113.

AMA Style

Stjepan Posavec, Karlo Beljan, Silvija Krajter, Dario Peršun. Calculation of Economic Rotation Period for Even-Aged Stand in Croatia. South-east European forestry. 2011; 2 (2):109-113.

Chicago/Turabian Style

Stjepan Posavec; Karlo Beljan; Silvija Krajter; Dario Peršun. 2011. "Calculation of Economic Rotation Period for Even-Aged Stand in Croatia." South-east European forestry 2, no. 2: 109-113.