Journal of Forest Science, 2017 (vol. 63), issue 1
LIST OF REVIEWERS - 2016List of reviewers
editors
J. For. Sci., 2017, 63(1):I-II | DOI: 10.17221/10759-JFS 
The condition of forest stands on afforested agricultural land in the Orlické hory MtsOriginal Paper
Jan CUKOR, Martin BALÁŠ, Ivo KUPKA, Marek TUŽINSKÝ
J. For. Sci., 2017, 63(1):1-8 | DOI: 10.17221/27/2016-JFS
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...
Introduction of suitable species for planting in gaps of different size (case study: Loveh forest, Golestan, Iran)Original Paper
Pejman PARHIZKAR, Khosro SAGHEB-TALEBI, Yaser SHAHINI, Maryam TEIMOURI
J. For. Sci., 2017, 63(1):9-15 | DOI: 10.17221/89/2016-JFS
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...
Needle water potential of selected pine species during the off-season: A case studyOriginal Paper
Ivana TOMÁŠKOVÁ, Jan VÍTÁMVÁS, Václav BAŽANT
J. For. Sci., 2017, 63(1):16-21 | DOI: 10.17221/69/2016-JFS
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...
The root system of pedunculate oak (Quercus robur L.) at the margins of regenerated standsOriginal Paper
Oldřich MAUER, Kateřina HOUŠKOVÁ, Tomáš MIKITA
J. For. Sci., 2017, 63(1):22-33 | DOI: 10.17221/85/2016-JFS
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...
Production and soil restoration effect of pioneer tree species in a region of allochthonous Norway spruce diebackOriginal Paper
Antonín MARTINÍK, Zdeněk ADAMEC, Jakub HOUŠKA
J. For. Sci., 2017, 63(1):34-44 | DOI: 10.17221/98/2016-JFS
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...
Modelling of forwarding distance to maximize the utilization of medium and high-power harvester technologyOriginal Paper
Jiří DVOŘÁK, Pavel NATOV, Martin LIESKOVSKÝ
J. For. Sci., 2017, 63(1):45-52 | DOI: 10.17221/114/2016-JFS
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...