Journal of Forest Science, 2021 (vol. 67), issue 2

Wood-inhabiting macromycete communities in spruce stands on former agricultural landOriginal Paper

Ivan Mihál, Eva Luptáková, Martin Pavlík

J. For. Sci., 2021, 67(2):51-65 | DOI: 10.17221/107/2020-JFS  

Wood-inhabiting macromycete (WIM) communities in the ecosystem of uneven-aged spruce stands growing on former agricultural land were investigated in relation to the supply of wood substrate, degree of wood rot, and selected climatic and ecological conditions. Altogether, 58 WIM species were detected at research plots during 2016-2018. The abundance of fruiting bodies and WIM species richness increased from the youngest to the oldest forest stands. The highest numbers of fruiting body abundance were recorded for Gymnopus perforans (11 756), Hypholoma fasciculare (2 971), Coprinellus disseminatus (326), Exidia pithya...

A simplified method for application of natural regeneration in black locust (Robinia pseudoacacia L.) stands in HungaryOriginal Paper

Veronika Honfy, Tamás Ábri, Lajos Juhász, János Rásó, Zsolt Keserű, Károly Rédei

J. For. Sci., 2021, 67(2):66-70 | DOI: 10.17221/147/2020-JFS  

Black locust (Robinia pseudoacacia L.) is one of the most important forest tree species in Hungary, covering approximately 24% of the forest land and providing 25% of the annual timber supply. One third of these black locust stands are high forests (planted with seedlings) and the remaining stands are coppices. An auxiliary table was developed for planning the black locust natural regeneration in order to determine the sprouting criteria based on stand volume at the final cutting age. Twenty forest subcompartments were selected for investigating the possibility of black locust regeneration by root suckers. The basic yield and stand structure...

Satellite image processing of the Buxus hyrcana Pojark dieback in the Northern Forests of IranOriginal Paper

Marzieh Ghavidel, Peyman Bayat, Mohammad Ebrahim Farashiani

J. For. Sci., 2021, 67(2):71-79 | DOI: 10.17221/56/2020-JFS  

Pests and diseases can cause a variety of reactions in plants. In recent years, the boxwood dieback has become one of the essential concerns of practitioners and natural resources managers in Iran. To control the boxwood dieback spread, the early detection and disease distribution maps are required. The boxwood dieback causes a range of changes in colour, shape and leaf size with respect to photosynthesis and transpiration. Through remote sensing techniques, e.g. satellite image processing data, the variation of thermal and visual characteristics of the plant could be used to measure and illustrate the symptoms of the disease. In this study, five common...

Effect of the standard levels of forest road segments on soil lossOriginal Paper

Ghaffar Yolmeh, Aidin Parsakhoo, Vahedberdi Sheikh, Jahangir Mohamadi

J. For. Sci., 2021, 67(2):80-86 | DOI: 10.17221/73/2020-JFS  

Roads with the low standard level are often more susceptible to soil loss and production of sediment during rainfall events. The main aims of this research were to investigate the relationships between the standard level of the road and soil loss and determine the most effective road attributes in soil loss. Therefore, 30 road segments were selected in Bahramnia forest district, Golestan Province. These segments were classified into low standard, medium standard and high standard levels based on longitudinal slope, coverage on cut slopes, distance from runoff origin to culvert, traffic volume, and surfacing quality. A rubber bar was installed at the...

Forest fire spatial modelling using ordered weighted averaging multi-criteria evaluationOriginal Paper

Hassan Faramarzi, Seyd Mohsen Hosseini, Hamid Reza Pourghasemi, Mahdi Farnaghi

J. For. Sci., 2021, 67(2):87-100 | DOI: 10.17221/50/2020-JFS  

Forest fires are a major environmental issue because they are increasing as a consequence of climate change and global warming. The present study was aimed to model forest fire hazard using the ordered weighted averaging (OWA) multi-criteria evaluation algorithm and to determine the role of human, climatic, and environmental factors in forest fire occurrence within the Golestan National Park (GNP), Iran. The database used for the present study was created according to daily classification of climate changes, environmental basic maps, and human-made influential forest fire factors. In the study area, the forest fires were registered using GPS. Expert...