Thinning experiment in the spruce and beech mixed stands on the locality naturally dominated by beech - growth, litter-fall and humus

Novák, Jiří; Slodičák, M.

doi:10.17221/20/2009-jfs

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…Our results suggest that 33% of the trees, 22% of the basal area and 12% of the stand volume was harvested from the original number of 2,112 to 5,184 trees ha −1 in case of adaptation thinning, and it was 36% of the trees, 12% of the basal area and 6% of stand volume in case of thinning from below. For comparison, slightly higher density (4,878 -5,267 trees ha −1 ) was found before the intervention in equally old (19 years) mixed spruce-beech stands in South Bohemia (Novák & Slodičák 2009). On the other hand, lower number of trees (1,566 -2,240 trees ha −1 ), such as stand volume (67 -77 m 3 ha 1 ), was observed in mixed birch-dominated stands of age 20 years (Vacek et al 2009).…”

Section: Discussionmentioning

confidence: 83%

“…J. 66 (2020) 116-129 relation to tree species composition, researches showed a higher probability of drought stress in young spruce stands than in beech or other deciduous trees (Jelínek & Kantor 2001;Borken & Beese 2005;Novák & Slodičák 2009). From this point of view, this proposed thinning could be a suitable adaptation option to decrease the risk of drought stress in forest stands.…”

Section: Discussionmentioning

confidence: 89%

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Silviculture as a tool to support stability and diversity of forests under climate change: study from Krkonoše Mountains

Vacek

Prokůpková

Vacek

et al. 2020

Central European Forestry Journal

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In Europe, warming, droughts and the rise of extreme climate events have an increasing significant negative effect on forest stands. Therefore, it is necessary to create appropriate adaptation strategies of silviculture to mitigate the impacts of global climate change on forest ecosystems in Central Europe. The objectives of this paper were to evaluate stand production, structure and diversity on eight experimental research plots in the Krkonoše Mountains. Subsequently, three variants of management were compared in mixed stands at the age of 17 – 20 years originating from natural regeneration: A) control variant (stands before thinning), B) applied newly designed thinning in the context of climate change adaptation and C) simulative thinning from below. Number of trees decreased from 3,256 trees ha−1 by 32% after adaptation thinning and by 36% after thinning from below. The basal area decreased in variant B by 22% and in variant C by 12%. Structural diversity and tree species richness increased after application of adaptation thinning, while decrease of diameter differentiation and total diversity was observed after thinning from below. Moreover, horizontal structure changed from aggregated spatial pattern to random distribution after the interventions, especially under adaptation thinning. The newly designed structuralizing adaptation thinning method seems to be a more suitable option in given habitat and stand conditions compared to the commonly performed thinning from below. In future, this issue will certainly require further close cooperation of forestry experts in order to arrive at optimal variants of solutions differentiated according to specific conditions.

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Section: Discussionmentioning

confidence: 83%

Section: Discussionmentioning

confidence: 89%

Silviculture as a tool to support stability and diversity of forests under climate change: study from Krkonoše Mountains

Vacek

Prokůpková

Vacek

et al. 2020

Central European Forestry Journal

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“…We used both thinned and unthinned mixtures of Norway spruce with European beech on two study sites in the Czech Republic which represented different conditions: Všeteč -Fagetum acidophilum site at 440 m a.s.l., GPS position 49°13'46.000"N, 14°16'28.000"E, for more information see Novák and Slodičák (2009) and Deštné -Piceeto-Fagetum acidophilum site at 990 m a.s.l., GPS position 50°19'25.336"N, 16°21'24.538"E, for more information see Novák and Slodičák (2008). Observed stands originated from artificial regeneration, i.e.…”

Section: Methodsmentioning

confidence: 99%

Importance of the first thinning in young mixed Norway spruce and European beech stands

Novák¹,

Dušek²,

Slodičák³

et al. 2017

J. For. Sci.

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Novák J., Dušek D., Slodičák M., Kacálek D. (2017): Importance of the first thinning in young mixed Norway spruce and European beech stands. J. For. Sci., Experimental results from the first thinning in mixed stands are not broadly experienced by forestry practice. To extend the experience with the thinning of a mixed stand, we studied thinned and unthinned mixtures of Norway spruce with European beech on two study sites in the Czech Republic, which represented different conditions: Všeteč (age of 19-35 years) -originally beech dominated site at 440 m a.s.l. and Deštné (age of 17-33 years) -originally spruce with beech site at 990 m a.s.l. Spruce and beech were mixed individually or in small groups. As the for number of trees, mixtures were 35-54% beech and 46-65% spruce at a lower altitude and 7-30% beech and 70-93% spruce at a higher altitude. In the period 1997-2013, we observed annually: mortality, diameter at breast height of all trees and height of trees (minimum 30 individuals) that represented diameter distribution. Results showed that the growth and development of young mixed spruce/beech stands were positively influenced by the first pre-commercial thinning on both locations. The most pronounced effect of thinning consisted in a decreased amount of basal area of dead trees. On control plots, salvage cut accounted for 34 and 46%, while on thinned plots it reached only 7-8% (thinned from above) and 18% (thinned from below) of basal area periodic increment during the 16-year study period. In contrast, diameter distribution was still relatively wide (i.e. an important amount of thin trees was left) at the end of observations on all plots of both study sites. Thinned stands also showed the better static stability (expressed as an h/d ratio) of dominant spruces compared to unthinned stands on both locations. Additionally, thinning supported the spruce share at a lower altitude and the beech share at a higher altitude.

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Biomass productivity, forest stability, carbon balance, and soil transformation of agricultural land afforestation: A case study of suitability of native tree species in the submontane zone in Czechia

Cukor

Vacek

et al. 2022

CATENA

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Thinning experiment in the spruce and beech mixed stands on the locality naturally dominated by beech - growth, litter-fall and humus

Cited by 4 publications

References 28 publications

Silviculture as a tool to support stability and diversity of forests under climate change: study from Krkonoše Mountains

Silviculture as a tool to support stability and diversity of forests under climate change: study from Krkonoše Mountains

Importance of the first thinning in young mixed Norway spruce and European beech stands

Biomass productivity, forest stability, carbon balance, and soil transformation of agricultural land afforestation: A case study of suitability of native tree species in the submontane zone in Czechia

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