Template-Type: ReDIF-Article 1.0 Author-Name: editors Title: INDEX OF VOLUME 62 Journal: Journal of Forest Science Pages: I-V Volume: 62 Issue: 12 Year: 2016 DOI: 10.17221/9380-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/9380-JFS.html File-Format: text/html Handle: RePEc:caa:jnljfs:v:62:y:2016:i:12:id:9380-JFS Template-Type: ReDIF-Article 1.0 Author-Name: I. Marková Author-Workplace-Name: Centre MendelGlobe - Global Climate Changes and Managed Ecosystems, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: D. Janouš Author-Workplace-Name: Centre MendelGlobe - Global Climate Changes and Managed Ecosystems, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Workplace-Name: CzechGlobe - Global Change Research Institute CAS, Brno, Czech Republic Author-Name: M. Pavelka Author-Workplace-Name: Centre MendelGlobe - Global Climate Changes and Managed Ecosystems, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Workplace-Name: CzechGlobe - Global Change Research Institute CAS, Brno, Czech Republic Author-Name: J. Macků Author-Workplace-Name: Forest Management Institute, Brandýs nad Labem, Czech Republic Author-Name: K. Havránková Author-Workplace-Name: CzechGlobe - Global Change Research Institute CAS, Brno, Czech Republic Author-Name: K. Rejšek Author-Workplace-Name: Institute of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: M.V. Marek Author-Workplace-Name: CzechGlobe - Global Change Research Institute CAS, Brno, Czech Republic Title: Potential changes in Czech forest soil carbon stocks under different climate change scenarios Abstract: Detailed inventory data (n = 3,930; approximately one representative sampling point per 650 ha) on soil organic carbon (SOC) to a depth of 30 cm has been used to characterize carbon content in forest soils in the Czech Republic across all altitudinal vegetation zones and forest ecological series. This data set was used to predict the most probable changes in soil carbon content in the altitudinal vegetation zones due to global warming. The mean value of the SOC content in forest soils of the Czech Republic was determined to be 62.6 ± 17.2 t.ha-1. Under different warming scenarios the major SOC loss was observed at an altitude of 700-900 m a.s.l. Using a pessimistic emission scenario in the climatic model (i.e. predicted temperature change by +4.24°C), losses of C from forest soils in the Czech Republic, or potentially in central Europe, could be as high as 13% of the current carbon stock in forest soils. Keywords: oxidizable soil carbon content, altitudinal vegetation zone, ecological series Journal: Journal of Forest Science Pages: 537-544 Volume: 62 Issue: 12 Year: 2016 DOI: 10.17221/103/2015-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/103/2015-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201612-0002.txt Handle: RePEc:caa:jnljfs:v:62:y:2016:i:12:id:103-2015-JFS Template-Type: ReDIF-Article 1.0 Author-Name: M.R. Ghaffariyan Author-Workplace-Name: Forest Industries Research Centre, University of the Sunshine Coast, Maroochydore DC, Australia Title: Analysis of forestry work accidents in five Australian forest companies for the period 2004 to 2014 Abstract: There is little knowledge available regarding Australian forestry work safety and accident rates. Machine operators and forestry workers are vital parts of the forestry sector and their health and well-being can greatly impact on their work quality and efficiency. To increase our knowledge of forest workers' safety this project aimed to analyse the frequency, type and root causes of work accidents which occurred within different forestry activities of five industry partners of Australian Forest Operations Research Alliance over the period from 2004 to 2014. A questionnaire was designed and distributed to the partners to collect the safety incident reports. Total number of work accidents was 470 for a period of 11 years (a rate of 43 accidents per year). Considering the estimated yearly production rates of the industry partners that participated in this project, the accident severity rate was 14.40 accidents per million m3 of harvested wood. The majority of accidents occurred in harvesting operations (37%) and forest management (30.2%). Based on the results 8.1% of the accidents occurred during firefighting and 24.3% of work accidents occurred in other forestry activities. Main root causes of accidents for different types of activities were personal errors such as lack of personal protective equipment, operator error, poor body position and poor techniques applied. Work safety training could be delivered to forestry personnel to minimise accidents caused by personal errors. Back and shoulder (as upper parts of the body) received most injuries. To avoid/reduce muscular damage (such as strain and sprain) the workers should be provided with proper ergonomic training. Keywords: operations, safety, accident rate, root cause, injury, protective equipment Journal: Journal of Forest Science Pages: 545-552 Volume: 62 Issue: 12 Year: 2016 DOI: 10.17221/80/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/80/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201612-0003.txt Handle: RePEc:caa:jnljfs:v:62:y:2016:i:12:id:80-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: P. Attarod Author-Workplace-Name: Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Karaj, Iran Author-Name: F. Rostami Author-Workplace-Name: Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Karaj, Iran Author-Name: A. Dolatshahi Author-Workplace-Name: Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Karaj, Iran Author-Name: S.M.M. Sadeghi Author-Workplace-Name: Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Karaj, Iran Author-Name: G. Zahedi Amiri Author-Workplace-Name: Department of Forestry and Forest Economics, Faculty of Natural Resources, University of Tehran, Karaj, Iran Author-Name: V. Bayramzadeh Author-Workplace-Name: Department of Wood Science, Faculty of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj, Iran Title: Do changes in meteorological parameters and evapotranspiration affect declining oak forests of Iran? Abstract: Decline of the Zagros forests of western Iran dominated by oak trees is assumed to be highly connected with changes in meteorological parameters. To examine this hypothesis, we aimed at observing the long-term trends of meteorological parameters and reference evapotranspiration (ET0) in the Zagros region. Long-term (1961-2010) data of air temperature (Ta), relative humidity (RH), precipitation (P), and wind speed (WS) were obtained from meteorological stations located in the Zagros region. The Penman-Monteith equation was applied to calculate ET0. The results indicated that since 2000, coinciding with the emerging oak decline, meteorological parameters and ET0 have been changed: Ta +0.6°C, P -60 mm, RH -3%, WS +0.4 m.s-1, and ET0 +0.25 mm.day-1. Although this research confirmed a significant relationship between oak decline and changes in meteorological parameters, full datasets recorded in different parts of the Zagros region are essential for a reasonable research to fully explain this hypothesis. Managers should think of the expected changes in meteorological parameters and evapotranspiration owing to global warming. Keywords: air temperature, global warming, Penman-Monteith equation, precipitation, reference evapotranspiration Journal: Journal of Forest Science Pages: 553-561 Volume: 62 Issue: 12 Year: 2016 DOI: 10.17221/83/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/83/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201612-0004.txt Handle: RePEc:caa:jnljfs:v:62:y:2016:i:12:id:83-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: A. Abdollahnejad Author-Workplace-Name: Department of Forest Management, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: D. Panagiotidis Author-Workplace-Name: Department of Forest Management, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: P. Surový Author-Workplace-Name: Department of Forest Management, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Investigation of a possibility of spatial modelling of tree diversity using environmental and data mining algorithms Abstract: Biological diversity is the basis for a wide array of goods and services provided by forests. The variety of forest trees and shrubs plays a vital role in the daily life of forest communities. The purpose of this study is to investigate the possibility of modelling the diversity of tree species by characteristics of topography, soil and climate, using data mining algorithms k-NN, RF and SVM in Dr. Bahramnia forestry plan in the north of Iran. Based on the basal area factor for each species in a total of 518 sample plots, diversity indices such as species richness, evenness and heterogeneity were calculated for each plot. Topographic maps of primary and secondary properties were prepared using the digital elevation model. Categories of the soil and climate maps database of Dr. Bahramnia forestry plan were extracted. Modelling rates of tree and shrub species diversity using data mining algorithms, with 80% of the sampling plots were taken. Assessment of the model accuracy, using 20% of samples and evaluation criteria, was conducted. Results showed that topographic features, especially elevation, had the highest impact on the species diversity index. The modelling results also showed that Camargo evenness index had lowest root mean square error (RMSE) (0.14) and RMSE% (24.35), compared to other indicators of diversity. In addition, the results of the comparison between the algorithms showed that the random forest algorithms were more accurate in modelling the diversity. Keywords: topographic characteristics, suborder soil, climate, non-parametric algorithms, richness, evenness indicators Journal: Journal of Forest Science Pages: 562-570 Volume: 62 Issue: 12 Year: 2016 DOI: 10.17221/97/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/97/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201612-0005.txt Handle: RePEc:caa:jnljfs:v:62:y:2016:i:12:id:97-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: M.F. Lavrov Author-Workplace-Name: Department of Woodworking Technology and Wooden Constructions, Institute of Engineering & Technology, North-Eastern Federal University in Yakutsk, Yakutsk, Russia Author-Name: I.A. Doktorov Author-Workplace-Name: Department of Woodworking Technology and Wooden Constructions, Institute of Engineering & Technology, North-Eastern Federal University in Yakutsk, Yakutsk, Russia Author-Name: G.M. Parnikova Author-Workplace-Name: Department of Woodworking Technology and Wooden Constructions, Institute of Engineering & Technology, North-Eastern Federal University in Yakutsk, Yakutsk, Russia Title: Creation of density distribution charts in the cross and axial section of a tree trunk- Short Communication Abstract: The purpose of this paper is to develop a method of constructing density distribution charts in roundwood log based on the density values obtained with a resistograph. The problem of improving the performance properties of structures made of wood and wood-based composite materials and laminated products is particularly relevant for construction in the northern regions. The experience of building in Yakutia shows sufficient reliability and durability of structures made of larch wood, despite the fact that their use is associated with technological challenges: larch planks warp and crack during the drying process; rigidity of wood increases. These disadvantages are caused by the structural features of the wood material; the degree of their intensity is proportional to the index of wood density. This paper presents the methods and results of qualitative research on wood indices obtained in laboratory and field conditions, as well as the authors' methods of graphical representation of density distribution in the cross and axial sections of a tree trunk, which are based on measurements taken via the method of oriented drilling. In the experimental studies, we performed a comparative analysis of the two-dimensional charts of density distribution with the charts of velocity distribution of acoustic pulses produced by a sonic tomograph "Arbotom". The elaborated method of evaluating the quality indicators of forest resources contributes to the expansion of the boundaries of wood-based material utilization, reduces their cost and improves the quality of construction of wooden structures and buildings. Keywords: quality indicators, Larix gmelinii, resistance-drilling, resistograph, densitogram, graphical representation Journal: Journal of Forest Science Pages: 571-579 Volume: 62 Issue: 12 Year: 2016 DOI: 10.17221/24/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/24/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201612-0006.txt Handle: RePEc:caa:jnljfs:v:62:y:2016:i:12:id:24-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Jiří Kulhavý Title: prof. Ing. Emil Klimo, DrSc. (1930-2016) Journal: Journal of Forest Science Pages: 580 Volume: 62 Issue: 12 Year: 2016 DOI: 10.17221/133/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/133/2016-JFS.html File-Format: text/html Handle: RePEc:caa:jnljfs:v:62:y:2016:i:12:id:133-2016-JFS