Journal of Forest Science, 2023 (vol. 69), issue 11
Potential of Morus nigra in Central Europe focused on micropropagation: A short reviewReview
Pavel ©vagr, Josef Gallo, Jan Vítámvás, Vilém Podrázský, Martin Balá¹
J. For. Sci., 2023, 69(11):463-469 | DOI: 10.17221/73/2023-JFS 
This paper is focused on the description of the black mulberry (Morus nigra), its ecology and the possibilities of its in vitro propagation for quick and efficient obtaining of a large quantity of clones in a relatively short time for subsequent planting or sale. Due to ongoing climate change, it is considerable to use mulberry trees in horticulture, agroforestry and forestry under the conditions of Central Europe. The use of the mulberry is conditioned by the availability of planting stock. A proven and successful method of mulberry propagation is in vitro cultivation. Based on literature review, the recommended composition of planting...
Potential of mixed Picea abies (L.) Karst. and Pinus sylvestris L. forests in lowland areas of Central BohemiaOriginal Paper
Pavel Brabec, Jakub Brichta, Zdenìk Vacek, Stanislav Vacek, Václav ©imùnek, Vojtìch Hájek
J. For. Sci., 2023, 69(11):470-484 | DOI: 10.17221/76/2023-JFS
Mixed forests play a key role in terms of stability, production potential, and adaptation to climate change. In addition, the studied Norway spruce [Picea abies (L.) Karst.] and Scots pine (Pinus sylvestris L.) belong to the most economically important tree species in Europe. The objectives were to determine the effect of the species composition of these two tree genera on the production, structure, diversity, and growth of mixed stands at lower elevations in the Czech Republic. Based on dendroecological samples, research was also carried out on the influence of climatic factors and climate change on the radial growth of these trees of interest....
Simulating differences between forwarding short and normal-length timberOriginal Paper
Simon Berg
J. For. Sci., 2023, 69(11):485-496 | DOI: 10.17221/41/2023-JFS
Normal log lengths in Norway are 3–6 m (NL), but occasionally there is a demand for short timber with a 2.5 m log length (ST). There are concerns that ST could reduce the forwarders' productivity. Six type stands were created based on harvester data. Different assortment distributions, conditions, and forwarders were simulated in each type stand. It was found that an additional ST assortment almost always decreased productivity (from –15.5 to +4%). Increased forwarding distance (m), more difficult driving conditions, and increased log concentration [m3·(100 m strip road)–1] decreased the...
Modelling the tree height-diameter relationship of Macedonian pine (Pinus peuce Gris.) forests in North MacedoniaOriginal Paper
Vladimir Tanovski, Bratislav Matoviæ, Mihajlo Risteski, Pande Trajkov
J. For. Sci., 2023, 69(11):497-513 | DOI: 10.17221/68/2023-JFS
The most crucial individual tree variables in forest management are diameter at breast height (DBH) and height of trees (H). Projection of stand development over time relies on accurate height-diameter functions. The main aim of this paper is to define the best usable model for tree height prediction from diameter at breast height. We explore the place where the Macedonian pine was discovered in the Baba Mountain in the Pelister National Park in North Macedonia. Thus, we established 48 experimental plots (EP) with a circle shape, a radius of 12.62 m and an area of 500 m2 each. The EP were established in pure Macedonian...