Changes in horizontal structure of natural beech forests on an altitudinal gradient in the Sudetes

Vacek, Zdeněk; Vacek, Stanislav; Bílek, Lukáš; Remeš, J.; Štefančík, Igor

doi:10.12657/denbio.073.004

Cited by 23 publications

(30 citation statements)

References 37 publications

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“…A similar trend was observed in the tree layer of acidophilous mountain beech woods in the Orlické hory Mts PLA or in exposed beech woods with extreme edaphic conditions (high skeleton content, steep slope and shallow soil profile) in the Broumovsko PLA. It is to conclude that the aggregation of the canopy trees in forest stands left to spontaneous development is caused by extreme climatic and edaphic conditions (Vacek et al 2015b). …”

Section: Discussionmentioning

confidence: 99%

Spatial pattern of relict beech (Fagus sylvatica L.) forests in the Sudetes of the Czech Republic and Poland

Bulušek¹,

Vacek²,

Vacek³

et al. 2016

J. For. Sci.

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Horizontal structure of forest stands largely affects the competitive relationships between tree individuals and plays a significant role in the stand dynamics. The present study describes horizontal structure on nine permanent research plots (0.24-0.25 ha) in the regeneration and tree layer of autochthonous European beech (Fagus sylvatica Linnaeus) stands in the wide altitudinal gradient in protected areas in the Czech Republic and Poland. The spatial structure was classified in productive herb-rich beech sites, through acidophilic beech sites, exposed sites, to beech fragments near the timberline. The spatial pattern of tree layer was regular in the lowest parts of the altitudinal gradient of beech, random in the middle parts and aggregated in the beech forests under the hilltop phenomenon and extreme edaphic site. Nevertheless, trees in lower tree layers showed a tendency to the aggregated pattern, similarly like the strong aggregation of natural regeneration. In most cases, the parent stand had a significant negative effect on natural regeneration at a smaller distance (to 0.8-4.2 m). The spatial pattern of dead wood was mostly random. Because of the great plasticity of beech crowns, crown centroids were more regularly distributed than tree stems. The average displacement of crown centroids from the stem base was 1.5 m with the prevailing direction of 52.7% down the slope. Projected canopy cover was on average 10.7% higher compared to the canopy simulated by circular crowns.

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Section: Discussionmentioning

confidence: 99%

Spatial pattern of relict beech (Fagus sylvatica L.) forests in the Sudetes of the Czech Republic and Poland

Bulušek¹,

Vacek²,

Vacek³

et al. 2016

J. For. Sci.

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“…At the same time, there was with the highest value production. When comparing individual localities (sites), the highest production value was found in the Zalobin, which was again related to the highest production potential of this site (largest stem diameter dimensions) compared to other plots (Bošeľa et al 2016;Štefančík 2015). It should be noted that the real value production would be lower, because we did not consider damage of the assessed trees (Petráš & Nociar 1991).…”

Section: Discussionmentioning

confidence: 87%

“…Therefore it does not distinguish between individuals for their stem quality. Despite the fact that subplots with thinning from below are always characterized by highest mean diameter (Assmann 1968;Šebík & Polák 1990;Štefančík 2015) in comparison with other methods of thinning, the proportion of the best quality stem was the highest at free crown thinning. Thus, this suggest that not only dimension of stems is important (over 45 cm dbh) for assorting, but also their quality characteristics and stem damage in particular.…”

Section: Discussionmentioning

confidence: 99%

“…Michal Bošeľa, e-mail: bosela@nlcsk.org al. 2014; Vladovič et al 2014), stand conditions (Bartoš & Souček 2010;Jullien et al 2013;Merganič et al 2013), genetic properties and characteristics (Ducros et al 1988;Hansen et al 2003;Gömöry & Paule 2011;Gömöry et al 2013), including an appropriate provenance (Novotný et al 2015) and the way of forest management (Štefančík 1974Mlinsek & Bakker 1990;Hein et al 2007;Poleno & Vacek et al 2009;Vacek et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Particularly, selective thinnings (Šebík & Polák 1990;Štefančík et al 1996;Cameron 2002) by the target trees method (Skovsgaard et al 2006;Hein et al 2007;Štefančík & Bošeľa 2014;Štefančík 2015) are the most appropriate. In addition, thinning increases the quality of beech timber (Keller et al 1976;Ferrand 1982;Cameron 2002;Poljanec & Kadunc 2013).…”

Section: Introductionmentioning

confidence: 99%

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Effect of different management on quality and value production of pure beech stands in Slovakia

Štefančík¹,

Bošeľa²,

Petráš³

2018

Central European Forestry Journal

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Value production is one of the most important information for comparing different management strategies in forestry. Although the value production of forest stands is affected by various factors (stem and assortment quality, stem dimension, stem injury, price of assortments), thinning can be considered as one of the most important one. This paper aims at the evaluation of qualitative and value production in homogeneous beech stands, which were managed by two different thinning types for period of 45 to 55 years: (i) -heavy thinning from below (C grade according to the German forest research institutes released in 1902) and (ii) -Štefančík´s free-crown thinning. The third variant was control (iii) -subplot with no interventions. Silvicultural quality characteristics of the lower half of the stem were assessed using a 4-class scale (A -the best quality, D -the worst quality). Assortment structure (commercial quality) was estimated for each stem by an assortment model developed in the past. Nearly 3,000 individual trees aged from 83 to 105 years from 23 subplots established across the Slovakia territory were assessed. The highest volume of the best silvicultural quality of stems (A class) has been reached in forests where Štefančík´s free-crown thinning was applied (57 -85%) while the lowest (22 -56%) on subplots with no management. The proportion of two best commercial quality assortments (I + II) was highest in forests managed by heavy thinning from below (21 -29%) and the lowest when no treatment was applied (7 -19%). The highest value production (expressed in € ha −1 ) was reached in the forests treated by free-crown thinning. Results suggested the overall positive impact of thinning on the increase of value production in beech forests. Particularly, the free-crown thinning focusing on selection of best quality trees should be preferred as it leads, besides its sufficient value production, to a higher vertical differentiation of the beech forests.

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Sunspot area as unexplored trend inside radial growth of European beech in Krkonoše Mountains: a forest science from different perspective

et al. 2020

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Changes in horizontal structure of natural beech forests on an altitudinal gradient in the Sudetes

Cited by 23 publications

References 37 publications

Spatial pattern of relict beech (Fagus sylvatica L.) forests in the Sudetes of the Czech Republic and Poland

Spatial pattern of relict beech (Fagus sylvatica L.) forests in the Sudetes of the Czech Republic and Poland

Effect of different management on quality and value production of pure beech stands in Slovakia

Sunspot area as unexplored trend inside radial growth of European beech in Krkonoše Mountains: a forest science from different perspective

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