Development of target (crop) trees in beech (Fagus sylvatica L.) stand with delayed initial tending and managed by different thinning methods

Štefančík, Igor

doi:10.17221/9/2013-jfs

Cited by 13 publications

(14 citation statements)

References 9 publications

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“…The question is whether this will be reflected on the quantity and value production of stands. Present knowledge on delayed tending in beech stands (Réh 2004;Štefančík 2013) point out that the desired dimensions (parameters) in terms of quantity of production can be more or less also achieved by delayed tending. However, it depends on the site and tending method and/or a type of thinning (Štefančík 2013a).…”

Section: Discussionmentioning

confidence: 99%

A comparison of different tending variants in beech stands by the crown thinning and from the view of their quantitative and qualitative development

Štefančík

2017

Central European Forestry Journal

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Impact of tending on dvelopment of beech (Fagus sylvatica L.) pole timber stands was analysed using different variants of the free crown thinning, i.e. the original method developed in Slovakia at the end of 1950s. Four variants of this method were compared: (i) -the free crown thinning on the whole area, the method of promising trees, later the method of target trees at stand age of 58 years. (ii) -the free crown thinning on non-whole area, tending realised inside of growth space of target trees only, the method of target trees, salvage cutting on the whole area. (iii) -the free crown thinning on non-whole area, the method of promising trees (the method of target trees at stand age of 58 years) realised on circular plots with diameter 4 m and spacing 8 m (distance between centre of circular plots). (iv) -combined selective method, thinning from below and the free crown thinning by method of target trees was used by the first thinning, in next thinning only the free crown thinning on whole-area was used, method of target trees. The structure (diameter and height) of the stand, the quantitative production parameters had been observed for a period of 30 years. Small differences were found in diameter and height structure between the variant (iv) and other three ones.Comparison of quantitative production pointed out minimum differences in favour of the variant (iv) compared to the other ones. The same results were also obtained in the qualitative production, especially for selective quality (target trees).

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Section: Discussionmentioning

confidence: 99%

A comparison of different tending variants in beech stands by the crown thinning and from the view of their quantitative and qualitative development

Štefančík

2017

Central European Forestry Journal

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“…From the results observed in naturally regenerated beech stands (Štefančík 1984, 2013aŠtefančík & Bošela 2014;Štefančík et al 2014) it is clear that thinning based on negative selection from below resulted in better quantity of production. According to today's tending targets, early, and more or less heavy crown thinning is also recommended by Spellmann & Nagel (1996) for beech stands.…”

Section: Discussionmentioning

confidence: 99%

“…Beech stands can be influenced by thinning from the point of production parameters (e.g. Abetz & Ohnenus 1999;Tarp et al 2000;Bastien et al 2005;Boncina et al 2007;Hein et al 2007;Štefančík 2013a) but also in the frame of other forest services. Thinning in beech stands is important for the cycles of carbon (Borys et al 2013) and nitrogen (Nahm et al 2006;Dannenmann et al 2007a), and also climate (Le Goff & Ottorini 1993;Cescatti & Piutti 1998;Barna 2000Barna , 2001Lemoine et al 2002;Dannenmann et al 2007b;Štefančík 2008).…”

Section: Introductionmentioning

confidence: 99%

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Thinning in artificially regenerated young beech stands

Novák¹,

Dušek²,

Slodičák³

2015

Forestry Journal

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Although beech stands are usually regenerated naturally, an area of up to 5,000 ha year -1 is artificially regenerated by beech in the Czech Republic annually. Unfortunately, these stands often showed insufficient stand density and, consequently, lower quality of stems. Therefore, thinning methods developed for naturally regenerated beech stands are applicable with difficulties. The paper evaluates the data from two thinning experiments established in young artificially regenerated beech stands located in different growing conditions. In both experiments, thinning resulted in the lower amount of salvage cut in following years. Positive effect of thinning on periodic stand basal area increment and on periodic diameter increment of dominant trees was found in the beech stand located at middle elevations. On the other hand, thinning effects in mountain conditions were negligible. Thinning focusing on future stand quality cannot be commonly applied in artificially regenerated beech stands because of their worse initial quality and lower density. However, these stands show good growth and response to thinning, hence their management can be focused on maximising beech wood production.Key words: diameter growth; basal area; Fagus sylvatica; quantity of production abstrakt Ačkoliv jsou bukové porosty obnovovány obvykle přirozeně, v České republice vzniká ročně až 5 tisíc hektarů bukových porostů obnovených uměle. Tyto porosty mají často bohužel nedostatečnou hustotu a v souvislosti s tím i nízkou kvalitu kmenů. Proto je v nich obtížné aplikovat metody výchovy vyvinuté pro porosty obnovené přirozeně. Studie je zaměřena na vyhodnocení dat z dvou experimentů s výchovou založených v mladých uměle obnovených bukových porostech v rozdílných růstových podmínkách. Provedené výchovné zásahy vedly na obou experimentech ke snížení nahodilé těžby v následujících letech. Pozitivní vliv výchovy na periodický přírůst porostní výčetní základny a na periodický tloušťkový přírůst dominantních stromů byl zjištěn ve sledovaných bukových porostech ve středních polohách. Vliv výchovy v horských podmínkách byl nejednoznačný. Kvůli nedostatečné hustotě a kvalitě je obtížné v uměle obnovovaných bukových porostech aplikovat tradiční výchovné zásahy zaměřené na podporu budoucí kvality produkce. Tyto porosty však vykazují dobrý růst a reakci na výchovné zásahy, a proto v nich může být hospodaření zaměřeno na kvantitu produkce bukového dřeva.

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“…Most of the authors recommended to start with the tending of a stand in a very early growth phase of thicket (Réh 1968(Réh , 1969Jurča, Chroust 1973;Lüpke 1986;Korpeľ et al 1991) and/or in small pole stage stands at the very latest (Štefančík 1974). There are some experiments when tending started only in a pole stage stand (Štefančík 1974, 2013aPretzsch 2005). Results from long-term investigations showed that in the case of late, but systematic and intensive tending in beech stands it is possible to achieve satisfactory quantitative production.…”

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confidence: 99%

The effect of different tending on stand structure and quantitative production of European beech (Fagus sylvatica L.) stand in a selected region of East Slovakia

Štefančík¹

2015

J. For. Sci.

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ABSTRACT:The paper deals with assessment of a long-term experiment (45 and/or 53 years of investigation) in the 90-years-old European beech (Fagus sylvatica L.) stand in a selected region of East Slovakia. The research was performed from 1960 to 2013 on subplots managed by four different methods: (i) plot with heavy thinning from below (C grade according to the German forest research institutes from 1902), (ii) plot with free crown thinning (thinning interval of 5 years), (iii) plot with free crown thinning (thinning interval of 10 years) and (iv) control plot (with no thinning). The diameter and height structure was calculated by structural indices according to Füldner (1995). Additionally, the following quantitative parameters were analysed: number of trees (tree density), basal area, standing volume, total yield production, total annual volume increment, total tree number decrease including thinning, self-thinning and abiotic injurious factors. The most suitable structure documented by the above-mentioned indices was found on the plots managed by free crown thinning. Similarly, from the quantitative aspect, the highest values (total production according to basal area) were reached on the plot tended by free crown thinning (thinning interval of 5 years). As for the total production according to merchantable volume, the highest values were obtained from the plot treated with heavy thinning from below.

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Development of target (crop) trees in beech (Fagus sylvatica L.) stand with delayed initial tending and managed by different thinning methods

Cited by 13 publications

References 9 publications

A comparison of different tending variants in beech stands by the crown thinning and from the view of their quantitative and qualitative development

A comparison of different tending variants in beech stands by the crown thinning and from the view of their quantitative and qualitative development

Thinning in artificially regenerated young beech stands

The effect of different tending on stand structure and quantitative production of European beech (Fagus sylvatica L.) stand in a selected region of East Slovakia

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