Template-Type: ReDIF-Article 1.0 Author-Name: editors Title: LIST OF REVIEWERS - 2016 Journal: Journal of Forest Science Pages: I-II Volume: 63 Issue: 1 Year: 2017 DOI: 10.17221/10759-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/10759-JFS.html File-Format: text/html Handle: RePEc:caa:jnljfs:v:63:y:2017:i:1:id:10759-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Jan CUKOR Author-Name: Martin BALÁŠ Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Ivo KUPKA Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Marek TUŽINSKÝ Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: The condition of forest stands on afforested agricultural land in the Orlické hory Mts Abstract: The paper presents an evaluation of the growth of newly established forest stands on former agricultural land and furthermore describes the state of the upper part of the soils in these stands in comparison with neighbouring grassland in the Orlické hory Mountains. The new Norway spruce stands show an extremely high growth potential, usually significantly higher in comparison with areas forested for more generations/rotations. The formation of the surface humus layer also showed fast progress, the amount of dry mass of soil organic matter reaching values almost typical of permanently forested sites. The soils of newly afforested lands tend to resemble the status of forest soil - there was observed a process of acidification and nutrient depletion, probably connected with accumulation of the tree biomass. Keywords: stand production, soil condition, humus accumulation, Norway spruce Journal: Journal of Forest Science Pages: 1-8 Volume: 63 Issue: 1 Year: 2017 DOI: 10.17221/27/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/27/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201701-0002.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:1:id:27-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Pejman PARHIZKAR Author-Workplace-Name: Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran Author-Name: Khosro SAGHEB-TALEBI Author-Workplace-Name: Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran Author-Name: Yaser SHAHINI Author-Workplace-Name: Department of Forestry, Faculty of Forest Science, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran Author-Name: Maryam TEIMOURI Author-Workplace-Name: Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran Title: Introduction of suitable species for planting in gaps of different size (case study: Loveh forest, Golestan, Iran) Abstract: This study was carried out in Loveh forest, north of Iran. We measured the quantitative characteristics of seedlings including collar diameter (measured at 1 cm above the soil surface), height, and current annual height increment and calculated the mean annual increments of height and diameter. Ten gaps with the same climatic, edaphic and topographic conditions were selected. In each gap, two transects, 2 m wide, were laid along the longest (North-South) and the shortest (West-East) axis. Nine sampling microplots, 4 m2 area, were established: one at the centre, four at the edges and four under the canopy within the transects. Results showed that the highest frequency of seedlings was seen in medium-size gaps (200-500 m2). Quantitative characteristics of oak seedlings were better in small and medium-size gaps. There was a significant difference in the length of spring shoots, mean annual increment of height and mean annual increment of diameter between the species. Hornbeam, wild service and wild cherry seedlings are recommended for faster gap recovery, as the results showed that these species had the highest values of studied variables. Keywords: canopy gap, length of spring shoots, mean annual increment of diameter, mean annual increment of height, seedling Journal: Journal of Forest Science Pages: 9-15 Volume: 63 Issue: 1 Year: 2017 DOI: 10.17221/89/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/89/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201701-0003.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:1:id:89-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Ivana TOMÁŠKOVÁ Author-Name: Jan VÍTÁMVÁS Author-Workplace-Name: Department of Genetics and Physiology of Forest Trees, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Václav BAŽANT Author-Workplace-Name: Department of Genetics and Physiology of Forest Trees, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Title: Needle water potential of selected pine species during the off-season: A case study Abstract: In this study we investigated the needle water potential of different pine species using a pressure chamber during winter months. Totally, seven pine species Pinus jeffreyi Greville & Balfour, Pinus ponderosa P. & C. Lawson, Pinus uncinata Ramond ex de Candolle, Pinus nigra Arnold, Pinus sylvestris Linnaeus, Pinus heldreichii Christ, Pinus cembra Linnaeus representing ecological variability of this genus were selected for measurements. Although the water potential is well documented in many tree species during the vegetation season, data from the off-season are scarce. During the investigated seasons (November 2014, January and February 2016), days with air temperature (T) above and below 0°C were selected for the measurement. During the days with air T above 0°C and global radiation reaching 3,000 kJ.m-2.day-1, the water potential averaged -0.6 ± 0.4 MPa. On the contrary, under T below 0°C and global radiation above 6,000 kJ.m-2.day-1, the needle water potential was close to zero (-0.3 ± 0.2 MPa) regardless of the pine species. The reason why the needle water potential reflects air T and is negatively correlated with the global radiation in winter will be an objective of our future investigations. Keywords: water stress, Pinus, global radiation, climatic changes, stomatal closure, transpiration Journal: Journal of Forest Science Pages: 16-21 Volume: 63 Issue: 1 Year: 2017 DOI: 10.17221/69/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/69/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201701-0004.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:1:id:69-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Oldřich MAUER Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Kateřina HOUŠKOVÁ Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Tomáš MIKITA Author-Workplace-Name: Department of Forest Management and Applied Geoinformatics, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Title: The root system of pedunculate oak (Quercus robur L.) at the margins of regenerated stands Abstract: The paper aims to contribute to the determination of reasons causing the irregular growth of young pedunculate oaks occurring at the margins of naturally and artificially regenerated plots neighbouring with adult stands on alluvial sites. It presents analyses of aboveground biometric parameters, mortality, root system architecture of young trees, root density in the soil profile, global solar radiation and soil moisture content in dependence on the location of oaks at the northern, southern, eastern or western margins of the regenerated area and on the distance from the stand margin. The highest impact of the neighbouring adult stand is always recorded on the margin of the regenerated plot while its effect is weakening towards the plot centre, and fading away ca. 7 m behind the crown projection of adult trees. Regardless of the oak location (northern, southern, eastern or western margin), the cause is a high root density of marginal trees of the adult stand, which induces the critical lack of water under their crown projections. Keywords: forest regeneration, stand margin, edge effect, tree morphology, mortality, microclimate Journal: Journal of Forest Science Pages: 22-33 Volume: 63 Issue: 1 Year: 2017 DOI: 10.17221/85/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/85/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201701-0005.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:1:id:85-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Antonín MARTINÍK Author-Workplace-Name: Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Zdeněk ADAMEC Author-Workplace-Name: Department of Forest Management and Applied Geoinformatics, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Author-Name: Jakub HOUŠKA Author-Workplace-Name: Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic Title: Production and soil restoration effect of pioneer tree species in a region of allochthonous Norway spruce dieback Abstract: The paper analyses the growth, structure, production and soil chemistry of different tree species stands 20 years after allochthonous spruce dieback. The experiment was carried out at lower altitudes (300 m a.s.l.) at rich sites of the Central Europe region. Norway spruce (Picea abies Linnaeus) and beech (Fagus sylvatica Linnaeus) stands established by artificial regeneration were compared with silver birch (Betula pendula Roth), aspen (Populus tremula Linnaeus) and birch-aspen stands, which were regenerated naturally. Spruce stands showed a decrease of site index (site index 3), compared with the previous generation (site index 2). This leads to an expected lower production at the age of 100 years, compared to mature beech stands, which showed a site index of 1. The highest production (tree overbark volume) was found out in the aspen stand - 294 m3.ha-1. The production (tree overbark volume) of other monoculture stands was comparable and reached 201-222 m3.ha-1. Most of the soil chemical characteristics under the compared stands (Ca and Mg content, Al content and active and potential soil reaction) were significantly better under aspen and decreased in the following trend: birch - beech - spruce. Keywords: forest transformation, regeneration methods, birch, aspen, wood production, soil chemistry Journal: Journal of Forest Science Pages: 34-44 Volume: 63 Issue: 1 Year: 2017 DOI: 10.17221/98/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/98/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201701-0006.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:1:id:98-2016-JFS Template-Type: ReDIF-Article 1.0 Author-Name: Jiří DVOŘÁK Author-Workplace-Name: Department of Forestry Technologies and Construction, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Pavel NATOV Author-Workplace-Name: Department of Forestry Technologies and Construction, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic Author-Name: Martin LIESKOVSKÝ Author-Workplace-Name: Department of Forest Harvesting, Logistics and Amelioration, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovak Republic Title: Modelling of forwarding distance to maximize the utilization of medium and high-power harvester technology Abstract: Every technologist aims to maximize the performance and capacity of vehicles, particularly when deployed in technological lines. To maximize the utilization of harvester technology, particularly of forwarders following the work of harvesters, it is useful to determine the maximum forwarding distance for consequent transport of timber, which was the aim of this study. The analysis presented in this study was conducted in medium and high-power vehicles which are dominantly deployed in the Czech Republic. The same performance of harvesters and forwarders is achieved by the calculation of the maximum forwarding distance. Other variables are constant for the time models (average load volume of forwarders is 12.1 m3 and the mean-tree volume is constant for every logged stem). Our conclusions suggested a maximum forwarding distance ranging from 116 to 1,052 m, depending on the decreasing mean-tree volume which ranged from 0.3 to 1.0 m3 per tree in the monitored logged stand. Keywords: forwarder, performance standards, work productivity, time consumption, timber transport Journal: Journal of Forest Science Pages: 45-52 Volume: 63 Issue: 1 Year: 2017 DOI: 10.17221/114/2016-JFS File-URL: http://jfs.agriculturejournals.cz/doi/10.17221/114/2016-JFS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/jfs-201701-0007.txt Handle: RePEc:caa:jnljfs:v:63:y:2017:i:1:id:114-2016-JFS