Template-Type: ReDIF-Article 1.0 Author-Name: Biancolillo Ilaria Author-Workplace-Name: Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Research Centre for Forestry and Wood, Villazzano di Trento, Italy Author-Name: Paletto Alessandro Author-Workplace-Name: Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA), Research Centre for Forestry and Wood, Villazzano di Trento, Italy Author-Name: Bersier Jacques Author-Workplace-Name: University of Applied Sciences and Arts Western Switzerland, School of Engineering and Architecture of Fribourg, Fribourg, Switzerland Author-Name: Keller Michael Author-Workplace-Name: University of Applied Sciences and Arts Western Switzerland, School of Engineering and Architecture of Fribourg, Fribourg, Switzerland Author-Name: Romagnoli Manuela Author-Workplace-Name: Centro Studi Alpino (CSALP/DIBAF), Tuscia University, Viterbo, Italy Title: A literature review on forest bioeconomy with a bibliometric network analysis Abstract: Over the last couple of decades, many peer-reviewed publications focused on the bioeconomy, which it is frequently argued to be a key part of the solution to global challenges (climate change, ecosystem degradation). This study investigates the scientific literature on forest bioeconomy by applying a social network analysis to the bibliometric science. The bibliometric network analysis was performed over the time-frame of 2003-2020 to provide an overview on the main aspects characterising the forest bioeconomy issue. The results show that 225 documents on forest bioeconomy were published by 567 organisations from 44 countries. Finland and Canada are the two most productive countries with 32.8% and 12.7% of forest bioeconomy documents respectively. The co-occurrence network map of the keywords shows that the forest bioeconomy is related to three main concepts: sustainable development, bioenergy production, climate change mitigation. Keywords: green economy, circular economy, forestry, bibliometric analysis, sustainability, VOSviewer software Journal: Journal of Forest Science Pages: 265-279 Volume: 66 Issue: 7 Year: 2020 DOI: 10.17221/75/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/75/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202007-0001.txt Handle: RePEc:caa:jnljfs:v:66:y:2020:i:7:id:75-2020-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Thomas Agyei Author-Workplace-Name: Global Change Research Institute CAS, Brno, Czech Republic Author-Name: Stanislav Juráň Author-Workplace-Name: Global Change Research Institute CAS, Brno, Czech Republic Author-Name: Kojo Kwakye Ofori-Amanfo Author-Workplace-Name: Global Change Research Institute CAS, Brno, Czech Republic Author-Name: Ladislav Šigut Author-Workplace-Name: Global Change Research Institute CAS, Brno, Czech Republic Author-Name: Otmar Urban Author-Workplace-Name: Global Change Research Institute CAS, Brno, Czech Republic Author-Name: Michal V. Marek Author-Workplace-Name: Global Change Research Institute CAS, Brno, Czech Republic Title: The impact of drought on total ozone flux in a mountain Norway spruce forest Abstract: In order to understand the impact of summer drought on dry deposition of tropospheric ozone (O3), we compared severe and mild drought periods of summer 2018 in a mountain Norway spruce forest at Bílý Kříž, Beskydy Mts. An eddy covariance technique was applied to measure diurnal courses of the ecosystem O3 and CO2 fluxes. Low O3 deposition was recorded in the morning and evening, while the highest CO2 and O3 fluxes were recorded during the central hours of the day. Total O3 deposition during severe drought (soil humidity 13%) was significantly higher than the deposition during the mild drought period (soil humidity 19%). Our data indicate that high vapour pressure deficit and low soil humidity during severe drought led to the stomatal closure, while non-stomatal O3 deposition, associated with chemical reactions of O3 with NO and volatile organic compounds, are responsible for higher total O3 deposition during the severe drought period. Therefore, we assume that under severe drought stomatal O3 uptake decreases but non-stomatal depositions to forest ecosystems substantially increase. Keywords: forest ecosystem, eddy covariance, temperature, photosynthetically active radiation, dry deposition Journal: Journal of Forest Science Pages: 280-278 Volume: 66 Issue: 7 Year: 2020 DOI: 10.17221/129/2019-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/129/2019-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202007-0002.txt Handle: RePEc:caa:jnljfs:v:66:y:2020:i:7:id:129-2019-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Iryna Koval Author-Workplace-Name: Laboratory of Forest Ecology, Ukrainian Research Institute of Forestry and Forest Melioration named after G. M. Vysotsky, Kharkiv Ukraine Author-Name: Nadiya Maksymenko Author-Workplace-Name: Department of Environmental Monitoring and Environmental Management, V. N. Karazin Kharkiv National University, Kharkiv, Ukraine Title: The radial increment of European ash (Fraxinus excelsior L.) under climate change, Ukraine Abstract: The aim of the study was to compare the response of the radial increment of European ash (Fraxinus excelsior L.) in the Western and Eastern forest steppe of Ukraine to climate change. The growth-climate relationships were estimated for 1961-1987 and 1988-2014 in Western and Eastern parts of the forest steppe. The results indicate that the sensitivity of the ash radial increment in stands of the Western and Eastern forest steppe to climate variations in the second period (1988-2014) was increased compared to the first period (1961-1987). In the second period correlation analysis and response function showed a negative effect of summer droughts on the ash radial increment for both stands. Also a negative effect of winter precipitation on tree rings of ash trees in the Western forest steppe during the second period was detected. The radial growth response to climate change showed an increase in the response of European ash radial growth to climate change, which was confirmed for European ash for both stands in the Western and Eastern forest steppe. Keywords: ring width, response function, correlation analysis, temperature, precipitation Journal: Journal of Forest Science Pages: 288-298 Volume: 66 Issue: 7 Year: 2020 DOI: 10.17221/37/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/37/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202007-0003.txt Handle: RePEc:caa:jnljfs:v:66:y:2020:i:7:id:37-2020-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Ivan Sopushynskyy Author-Workplace-Name: Department of Botany, Wood Science and Non-Wood Forest Products Educational and Research Institute of Forestry and Park Gardening, Ukrainian National Forestry University, Lviv, Ukraine Author-Name: Ruslan Maksymchuk Author-Workplace-Name: Department of Botany, Wood Science and Non-Wood Forest Products Educational and Research Institute of Forestry and Park Gardening, Ukrainian National Forestry University, Lviv, Ukraine Author-Name: Yaroslav Kopolovets Author-Workplace-Name: Department of Botany, Wood Science and Non-Wood Forest Products Educational and Research Institute of Forestry and Park Gardening, Ukrainian National Forestry University, Lviv, Ukraine Author-Name: Sezgin Ayan Author-Workplace-Name: Silviculture Department, Faculty of Forestry, Kastamonu University, Kastamonu, Turkey Title: Intraspecific structural signs of curly silver fir (Abies alba Mill.) growing in the Ukrainian Carpathians Abstract: The aim of this paper is to present the intraspecific differentiation of the curly silver fir (Abies alba Mill.) by the wood structure growing in the Ukrainian Carpathians. To find the morphological distinctions by using the silvicultural and biometric methods, 50 silver fir trees with anomalous wavy-relief stemwood formations were investigated. The trees aged from 94 to 132 years were characterised by the diameter at breast height of 32-59 cm. The length of the wave-grained stemwood varied from 6 to 11.5 m. The amplitude of the wood fibre waves varied from 4.4 to 24.1 mm. The smallest values of the amplitude of the wave-grained wood corresponded to the smaller wavelengths. The significant differences in the wood density and annual growth between the silver fir trees with the straight-grained and wave-grained stem wood were determined. The number of annual rings in 1 cm of the curly silver fir was 27.1% lower and 22.7% higher than the same characteristics for the straight-grained stem wood. The obtained linear equation described the relationship between the number of annual rings in 1 cm and the basic wood density of the silver fir with the straight-grained wood. The aesthetic features of the curly silver fir stem wood were discussed in the subject area of a new niche of exclusive wood products. Keywords: amplitude of wood wave, length of wood wave, wave-grained stemwood, wood structure Journal: Journal of Forest Science Pages: 299-308 Volume: 66 Issue: 7 Year: 2020 DOI: 10.17221/79/2020-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/79/2020-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-202007-0004.txt Handle: RePEc:caa:jnljfs:v:66:y:2020:i:7:id:79-2020-JFS