Journal of Forest Science, 2014 (vol. 60), issue 8

Proposals for Nothofagus antarctica diameter growth estimation: simple vs. global modelsOriginal Paper

H. Ivancich, G.J. Martínez Pastur, M.V. Lencinas, J.M. Cellini, P.L. Peri

J. For. Sci., 2014, 60(8):307-317 | DOI: 10.17221/22/2014-JFS  

Tree growth is one of the main variables needed for forest management planning. The use of simple models containing traditional equations to describe tree growth is common. However, equations that incorporate different factors (e.g. site quality of the stands, crown classes of the trees, silvicultural treatments) may improve their accuracy in a wide range of stand conditions. The aim of this work was to compare the accuracy of tree diameter growth models using (i) a family of simple equations adjusted by stand site quality and crown class of trees, and (ii) a unique global equation including stand and individual tree variables. Samplings...

Topography of material made by the application of abrasive water jet technologyOriginal Paper

M. Kvietková

J. For. Sci., 2014, 60(8):318-323 | DOI: 10.17221/7591-JFS  

Water jet cutting technology is widely applicable in all industrial areas in areas where the need for high dimensional precision machined material. Quality of surface corresponds to the scale from middle smooth milling to rough milling. It shows the results of undulation in dependence on technical and technological parameters ‒ feed rate and abrasive mass flow. The paper also contains the methodology for assessment of the effect of these parameters on surface finished undulation. Our paper presents significant results of experiments made by this methodology applied to MDF, OSB boards and to technical beech plywood. We can see from the above-mentioned...

Influence of forest fragmentation on the distribution of small terrestrial mammals in fir-beech commercial forestOriginal Paper

P. Lešo, A. Lešová, R. Kropil

J. For. Sci., 2014, 60(8):324-329 | DOI: 10.17221/86/2013-JFS  

Differences in abundance and spatial distribution of small terrestrial mammals were compared between the forest interior and clearing. In total, seven micromammalian species were detected. Of them, only three species were captured within the forest interior, whereas six species were recorded on the clearing. Apodemus flavicollis and Clethrionomys glareolus were dominant species. Another five species were recorded scarcely. Abundance of Apodemus flavicollis reached significantly (P < 0.001) the highest value in the forest interior. On the contrary, Clethrionomys glareolus was significantly (P...

Biotechnical control of tar spot (Rhytisma acerinum) disease on velvet maple (Acer velutinum Boiss) in vitroOriginal Paper

S.M. Karami, M.R. Kavosi, G. Hajizadeh, H. Jalilvand

J. For. Sci., 2014, 60(8):330-335 | DOI: 10.17221/50/2014-JFS  

Several different fungi can cause tar leaf spot diseases in maple trees, including three fungi of the genus Rhytisma. Rhytisma acerinum (Pers.) Fries is an ascomycete that forms black stromata known as tar spot on the adaxial surface of the leaves of Acer species. The tar spot (R. acerinum) disease has been increasing in incidence and severity in maples of Hyrcanian forests, northern Iran, in recent years. One of the best ways to manage infestations by R. acerinum is through adequate biotechnical techniques. The isolation of fungal spore colonies was evaluated using different dosages of Oxywet 10%...

Forest succession after a major anthropogenic disturbance: a case study of the Jewish Forest in the Bohemian Forest, Czech RepublicOriginal Paper

J. Bednařík, V. Čada, K. Matějka

J. For. Sci., 2014, 60(8):336-348 | DOI: 10.17221/57/2014-JFS  

The knowledge of forest development after disturbances, particularly anthropogenic disturbances, is of major importance for forest management. Many areas of mountain forests in Europe have been affected by human activities such as felling and livestock grazing in the past and then left for natural succession. Those forests provide several ecosystem services (e.g. soil or avalanche protection) and therefore it is vital to know their developmental processes. The Norway spruce forest stand in the area of Medvědí Mt. (Šumava National Park, Czech Republic), known as the Jewish Forest, is considered an example of succession after anthropogenic disturbances....

Scobicia chevrieri (Villa & Villa 1835), a new species of the Bostrichidae family for the Slovak RepublicShort Communication

J. Kollár

J. For. Sci., 2014, 60(8):349-350 | DOI: 10.17221/24/2014-JFS  

Coleoptera research was conducted in the Mlyňany Arboretum of SAS (48°19'12''N, 18°22'09''E) in 2013. Once per week monitoring was carried out from late April to early October. During the sample collection process, an occurrence of Scobicia chevrieri (Villa & Villa 1835) from the Bostrichidae family has been recorded. It is considered to be the first record of this powderpost beetle species in the Slovak Republic. An imago was caught in a light trap which uses UV tubes in combination with white light. Its potential host plant seems to be Quercus robur L., or other Quercus species found in the...

Climate change, air pollution and global challenges. Understanding and perspectives from forest researchReview

R. Matyssek, N. Clarke, P. Cudlin, T.N. Mikkelsen, J.P. Tuovinen, G. Wieser, E. Paoletti

J. For. Sci., 2014, 60(8):351-352 | DOI: 10.17221/73/2014-JFS  

Climate change, air pollution and global challenges. Understanding and perspectives from forest research R. Matyssek, N. Clarke, P. Cudlin, T.N. Mikkelsen, J.P. Tuovinen, G. Wieser, E. Paoletti Developments in Environmental Science 13. Elsevier Ltd., Oxford, 2013 622 pages, ISBN 978-0-08-098349-3. € 142.31.