Research on an effective artificial regeneration method for selected commercially important coniferous tree species on a large sanitation cut site situated in the Javorníky Mts., Western Carpathians

Martin Belko, Anna Tučeková, Roman Longauer, Valéria Longauerová, Vladimír Mačejovský and Ivan Horvát
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Martin Belko: Forest Research Institute, National Forest Centre, Zvolen, Slovakia
Anna Tučeková: Forest Research Institute, National Forest Centre, Zvolen, Slovakia
Roman Longauer: Forest Research Institute, National Forest Centre, Zvolen, Slovakia
Valéria Longauerová: Forest Research Institute, National Forest Centre, Zvolen, Slovakia
Vladimír Mačejovský: Forest Research Institute, National Forest Centre, Zvolen, Slovakia
Ivan Horvát: Forest Research Institute, National Forest Centre, Zvolen, Slovakia

Journal of Forest Science, 2024, vol. 70, issue 7, 353-367

Abstract: In response to the decline of Central European spruce monocultures driven by various factors, the Demonstration Object of Reconstruction of Spruce Forests (DORS) was established in Husárik locality, Javorníky Mts., northwestern Slovakia. The area includes the Husárik trial site, where the applicability and efficiency of different artificial regeneration methods are studied. The trial was established on a 24-ha area cleared following the outbreak of spruce bark beetles in 2011. Its altitude is 800 m a.s.l., aspect NW, slope 30%, the soil is Ranker on the soft flysch sandstone bedrock. Our study covered 4 conifers - Norway spruce (spruce), European larch (larch), silver fir (fir), and Douglas fir (doug fir). Each species was regenerated using 4 different approaches: planting of commercial bareroot transplants (BR), planting of container transplants (CON), direct seeding (DS) and vegetative cell seeding using seed shelters (VCS). Results concerning the nine-year development of transplants and seedlings, along with the calculation of cost-efficiency, are presented. As to the species, BR and CON transplants of spruce and larch reached the best survival and height. The DS larch was the most cost-efficient method of establishment of a successfully established plantation (survival > 50%; stem height > 2/3 of the weed height; ratio of damaged individuals < 50%) with a total cost of 2 372 EUR.ha-1. On the contrary, the slow initial growth of fir and Douglas fir and their extensive damage resulted in the incomparably higher cost of establishment of their successfully established plantation, such as 4 980 EUR.ha-1 for five-years-old BR fir transplants. Our findings documented that current efforts related to the restoration of salvage-felled clearings remained difficult, especially in the case of introduction or reestablishment of coniferous tree species more vulnerable to open site conditions.

Keywords: artificial regeneration; bareroot plants; conifers; container plants; seeding; successfully established plantation (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:70:y:2024:i:7:id:1-2024-jfs

DOI: 10.17221/1/2024-JFS

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