Template-Type: ReDIF-Article 1.0 Author-Name: editors Title: INDEX OF VOLUME 61 Journal: Journal of Forest Science Pages: I-IV Volume: 61 Issue: 12 Year: 2015 DOI: 10.17221/8631-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/8631-JFS.html File-Format: text/html Handle: RePEc:caa:jnljfs:v:61:y:2015:i:12:id:8631-JFS Template-Type: ReDIF-Article 1.0 Author-Name: J. Mikleš Author-Workplace-Name: Technical University in Zvolen, Faculty of Environmental and Manufacturing Technology, Department of Environmental and Forest Technology, Slovak Republic Author-Name: M. Mikleš Author-Workplace-Name: Technical University in Zvolen, Faculty of Environmental and Manufacturing Technology, Department of Environmental and Forest Technology, Slovak Republic Title: Relation between terrain and operating conditions of forest skidders Abstract: A model of the probability of operating conditions describes running of the examined unit in form of connected probabilities of occurrence of monitored operating factors can be stochastically dependent or independent. Operating factors will be divided, in order to the opportunity of the monitoring, on the quantification of the probability model of the forest skidder, into two parts: terrain conditions (micro and macrorelief of the terrain) and operating conditions (a line of operation, a load, a distance). In this paper opportunities are sought of the relationship between terrain conditions and operating conditions in the defined signification. A field of the application is in a monitoring of operating conditions, planning and organisation of the experiment, in this field. Keywords: probability model, traction force, engine power, tyre characteristics Journal: Journal of Forest Science Pages: 515-519 Volume: 61 Issue: 12 Year: 2015 DOI: 10.17221/59/2015-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/59/2015-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201512-0002.txt Handle: RePEc:caa:jnljfs:v:61:y:2015:i:12:id:59-2015-JFS Template-Type: ReDIF-Article 1.0 Author-Name: A. Parsakhoo Author-Workplace-Name: Gorgan University of Agricultural Sciences and Natural Resources, Faculty of Forest Science, Department of Forestry, Gorgan, Iran Author-Name: M. Mostafa Author-Workplace-Name: Gorgan University of Agricultural Sciences and Natural Resources, Faculty of Forest Science, Department of Forestry, Gorgan, Iran Title: Road network analysis for timber transportation from a harvesting site to mills (Case study: Gorgan county - Iran) Abstract: We summarized the results of the Road Network Analysis (RNA), when the shortest path to reduce travel time in the Gorgan city public road network, in Iran, was evaluated. The main objective was to determine whether by using a GIS-based new route approach it is possible to determine the shortest path from logging site to destination (mills). The results showed that by using the concept of travel time as a measure of the importance of nodes, the shortest path from origin to destination was found. A path with minimum links and lengths as well as maximum vehicle speed is the best. This dramatically reduced the search complexity in terms of routing. Keywords: shortest path, travel time, GIS, origin and destination, public road, road network analysis Journal: Journal of Forest Science Pages: 520-525 Volume: 61 Issue: 12 Year: 2015 DOI: 10.17221/67/2015-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/67/2015-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201512-0003.txt Handle: RePEc:caa:jnljfs:v:61:y:2015:i:12:id:67-2015-JFS Template-Type: ReDIF-Article 1.0 Author-Name: N. Badraghi Author-Workplace-Name: Global Change Research Centre, Academy of Sciences of the Czech Republic, Brno, Czech Republic Author-Name: J. Erler Author-Workplace-Name: Department of Forest Technology, TU Dresden University, Tharandt, Germany Author-Name: S.A.O. Hosseini Author-Workplace-Name: Department of Forestry and Forest Economics, University of Tehran, Iran Title: Residual damage in different ground logging methods alongside skid trails and winching strips Abstract: To assess the residual damage a 100% inventory method was employed in pre-hauling and post-hauling, alongside skid trails and winching strips. Inventory was executed within 6 m from each side of the skid trail or winching strip centreline (12 m width). Besides the data analysis to choose the best alternative depending on residual damage the Analysis of Multiple-criteria Approval (MA) was applied. In the winching strip, our results demonstrated that depending on the density of standing residual trees the most unfriendly alternative to standing trees was a short-length method (SLM) which damaged 27.9% of the total standing trees and the best alternative was a tree-length method (TLM) (11.89%). The most unfriendly alternative to regeneration in winching and skidding operations was SLM with damaged 21% and 9% of all seedlings, respectively. In the winching strip TLM is the best alternative depending on the number of damage trees but 72% damage degree was deep. Alongside the skid trails the highest number of damaged trees occurred in TLM (44 stems) and the lowest was in the long-length method (LLM) (10 stems); according to the density of trees also the greatest damage to trees occurred in TLM (16.73%) and the lowest was in LLM (3.13%). In addition (in winching and skidding operations), 14.31, 8.79 and 18.19% of residual trees and 9, 11 and 16% of individuals of regeneration were damaged in TLM, LLM and SLM, respectively. The results of data analysis (by SPSS and MA) indicated that the friendly alternative to residual stand in the north of Iran is a long-length method. Keywords: long-length method (LLM), short-length method (SLM), skidding and winching operations, tree-length method (TLM) Journal: Journal of Forest Science Pages: 526-534 Volume: 61 Issue: 12 Year: 2015 DOI: 10.17221/50/2015-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/50/2015-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201512-0004.txt Handle: RePEc:caa:jnljfs:v:61:y:2015:i:12:id:50-2015-JFS Template-Type: ReDIF-Article 1.0 Author-Name: A. Gyawali Author-Workplace-Name: Institute of Forestry, Pokhara Campus, Tribhuwan University, Nepal Author-Name: R. P. Sharma Author-Workplace-Name: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: S.K. Bhandari Author-Workplace-Name: Institute of Forestry, Pokhara Campus, Tribhuwan University, Nepal Title: Individual tree basal area growth models for Chir pine (Pinus roxberghii Sarg.) in western Nepal Abstract: The individual tree growth models are important decision-making tools in forestry. Age dependent and age independent individual tree basal area growth models were developed for Chir pine (Pinus roxberghii Sarg.) in one of the western districts, Rukum district, in Nepal. Data from thirty-five destructively sampled trees, which were representative of all possible stand densities, site productivities, age classes, and size classes of Chir pine forests in the district, were used. Sample trees were felled and diameters and ages were measured on the cut surface of the stump (at 30 cm above the ground). Since measurements from the same stump of a tree were strongly correlated, the autoregressive error structure modelling approach was applied while specifying the model in order to reduce bias. All parameter estimates of the models were significant (P < 0. 01) and the models described most of the variations of basal area growth (R2adj > 0.86). Residual graphs showed no serious systematic bias for all observed age classes and diameter classes. The age independent growth model showed relatively better fit statistics (R2adj = 0.8751, RMSE = 4.8494) than its age dependent counterpart (R2adj = 0.8668, RMSE = 5.0158). Because of being more precise and simpler, the age independent model is recommended to apply to both even-aged and uneven-aged stands of Chir pine in the district. Keywords: autoregressive error structure, age dependent model, age independent model Journal: Journal of Forest Science Pages: 535-543 Volume: 61 Issue: 12 Year: 2015 DOI: 10.17221/51/2015-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/51/2015-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201512-0005.txt Handle: RePEc:caa:jnljfs:v:61:y:2015:i:12:id:51-2015-JFS Template-Type: ReDIF-Article 1.0 Author-Name: S. Kočvarová Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: J. Pecháček Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: K. Rejšek Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: V. Vranová Author-Workplace-Name: Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Title: Acid phosphomonoesterase activity as affected by salicylic acid and its relation to selected biochemical characteristics in soils of Norway spruce stands Abstract: The main aim of the study was to determine extracellular acid phosphomonoesterase activity in soil with and without addition of salicylic acid. Some other important chemical and physical features of soil were also investigated including the content and seasonal dynamics of bioavailable phosphorus and water soluble carbohydrate contents. Soil samples were collected at a depth of 5 cm (H horizon) at the Rájec-Němčice Ecosystem Station (southern Moravia, Czech Republic) in three differently managed Norway spruce pure stands. No correlation was found between the acid phosphomonoesterase activity and phosphorus content. The addition of salicylic acid reduced the acid phosphomonoesterase activity compared to soil without any substrate added. Keywords: phosphorus, carbohydrates, 2-hydroxybenzoic acid, Picea abies Journal: Journal of Forest Science Pages: 544-550 Volume: 61 Issue: 12 Year: 2015 DOI: 10.17221/101/2015-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/101/2015-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201512-0006.txt Handle: RePEc:caa:jnljfs:v:61:y:2015:i:12:id:101-2015-JFS Template-Type: ReDIF-Article 1.0 Author-Name: R. Krejzek Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Author-Name: P. Novotný Author-Workplace-Name: Department of Forest Tree Species Biology and Breeding, Forestry and Game Management Research Institute, Jíloviště, Czech Republic Author-Name: V. Podrázský Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences in Prague, Prague, Czech Republic Author-Name: F. Beran Author-Workplace-Name: Department of Forest Tree Species Biology and Breeding, Forestry and Game Management Research Institute, Jíloviště, Czech Republic Author-Name: J. Dostál Author-Workplace-Name: Department of Forest Tree Species Biology and Breeding, Forestry and Game Management Research Institute, Jíloviště, Czech Republic Title: Evaluation of the IUFRO provenance plot with grand fir in the Habr locality (Western Bohemia) at the age of 31 years Abstract: In the framework of an international IUFRO provenance research of grand fir (Abies grandis/D. Don/ Lindl.), a series of research plots was established in the Czech Republic in 1980-1982. This paper focuses on an evaluation of experimental plot No. 213 - Habr (Western Bohemia), where 24 provenances of grand fir are investigated. Results of the evaluation of height, diameter at breast height, volume of large timber (diameter outside bark > 7 cm), and some qualitative parameters are presented for the age of 31 years. Results of the plot evaluation showed the best growth in provenances originating from the Washington state coastal region. Individuality of growth pattern was confirmed for different Vancouver provenances and those from Idaho and Montana states. These areas cannot be considered as homogeneous. The growth of all provenances originating from the Cascades, Washington, is below average.The lowest growth rates were documented for the Cascades, Oregon state provenances; superior characteristics of some of them probably result from the high mortality of others at earlier stages and larger growth space available at present. Keywords: Abies grandis, provenance research, experimental plot, production Journal: Journal of Forest Science Pages: 551-561 Volume: 61 Issue: 12 Year: 2015 DOI: 10.17221/74/2015-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/74/2015-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201512-0007.txt Handle: RePEc:caa:jnljfs:v:61:y:2015:i:12:id:74-2015-JFS