Journal of Forest Science, 2024 (vol. 70), issue 3

Chemical forest amelioration: Experience from the Czech Republic and other selected countries – A reviewReview

Martin Baláš, Ivan Kuneš, Vilém Podrázský, Josef Gallo, František Lopot

J. For. Sci., 2024, 70(3):103-121 | DOI: 10.17221/72/2023-JFS  

This review article summarises the results of research on forest liming, fertilisation, nutrition flows and cycles in selected European and other countries. The presented studies mostly deal with assessing the effect of liming and fertilisation applied during planting or shortly after planting. The sporadic studies on fertilisation in older stands are also presented. The application of crushed limestone, dolomite or other alkaline rocks or their mixtures is usually used to improve the soil conditions on a large area through the adjustment of soil acidity and to supply any deficient elements, especially calcium and magnesium. These amendments are typically...

Detecting land use/land cover changes and forest degradation: A case study of the lower Soummam valley, northern AlgeriaOriginal Paper

Megdouda Smail, Zoubir Boubaker, Mohamed Sbabdji, Habib Mouaissa, Bimare Kombate

J. For. Sci., 2024, 70(3):122-134 | DOI: 10.17221/86/2023-JFS  

The environment is characterised by subtle and major mutations that cause changes in land use/land cover. Analysis of its dynamics and identification of vulnerable areas are critical to maintaining ecosystem services. The aim of this research is to quantify and qualify land cover dynamics over a 30-year period. It will also highlight forest degradation from a supervised classification of Landsat satellite imagery (L5 TM1987, L7 ETM+ 2000, and L8 OLI/TIRS 2019). The dynamics of land use/land cover were investigated by a maximum likelihood approach using geographic information system (GIS) and remote sensing (RS). Six major land use and land cover (LULC)...

Use of the threshold segmentation method as an alternative for estimating the volume of forest industry residuesOriginal Paper

Carlos Borrego-Núñez, Pablito Marcelo López-Serrano, Pedro Antonio Domínguez-Calleros, Jorge Luis Compeán-Aguirre, Artemio Carrillo-Parra

J. For. Sci., 2024, 70(3):135-143 | DOI: 10.17221/105/2023-JFS  

In recent decades, the interest in searching for procedures and strategies to make energetic and economic use of residues from different industries has been an important part of the political agenda. There are several methods to determine the volume of residues from the forestry industry, but they are too time-consuming to apply. The objective of the present study was to establish a simpler and more efficient method to quantify the volume of residues from the forest industry. Ten controlled piles were made with residues from a private sawmill in the city of Durango, Mexico. To calculate the volume, two manual methods and one automatic method were used...

Calculation and operational assessment of tyre contact areas in the tractor-and-trailer unitOriginal Paper

Milan Marušiak, Tomáš Zemánek, Jindřich Neruda, Pavel Nevrkla

J. For. Sci., 2024, 70(3):144-159 | DOI: 10.17221/109/2023-JFS  

This paper deals with the verification of models for the calculation of the contact area with the soil using data measured during the testing of a tractor-and-trailer unit. The main emphasis was put on the method of calculating the contact area by means of a super ellipse. The comparison included calculation models with the input parameters of contact length and contact width of the tyre. These parameters were compared with values measured in the field where the main variables were tyre dimensions, inflation pressure and load. Results of comparisons show that the method of calculating the contact area using a super ellipse exhibited the best match...