Acta Univ. Agric. Silvic. Mendelianae Brun. 2013, 61(5), 1261-1268 | DOI: 10.11118/actaun201361051261

Ecology of beech regeneration in the allochthonous spruce stands - a case study

Lumír Dobrovolný, Miroslav Cháb
Department of Silviculture, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

We study the successional process of beech in a allochthonous spruce monocultures. In the natural regeneration of the predominatly spruce stand (area: 14.28 ha, age: 110 years) with single mother beech trees admixture the spruce regeneration occupies the most part of the study area. However, about one quarter of area is occupied relatively regular by beech regeneration. The spruce density was at all times higher than that of beech while the spruce height grow was by contrast at all times lower than that of beech. Mean distance of beech seedlings dispersion is 12.7; at a distance greater than 40 m, the density already neared zero. Density of spruce increases with increasing light intensity, the density of beech decreases - the competition point was found about 19% of diffuse radiation or about 14% of canopy openness. The both species respond to increase of light intensity with increase of height grow (by beech only weekly) - the spruce starts to dominate the beech at about 32% of diffuse radiation or about 22% of canopy openness. The silvicultural goal in the next stand generation - converting of spruce forest into mixed forest, i.e. achievement of the legal proportion of beech as a soil-improving and reinforcing tree species (proportion about 30% and more) in the spruce stand can be reliably realized by natural way only using a combination of more intensive shelterwood or border felling with group selection system.

Keywords: natural regeneration, spruce, beech, species conversion
Grants and funding:

Supported by the Czech Agency for Agricultural Research KUS QJ1230330 and by the Internal Agency of Mendel University IGA V "Gap regeneration".

Received: May 6, 2013; Published: September 28, 2013  Show citation

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Dobrovolný, L., & Cháb, M. (2013). Ecology of beech regeneration in the allochthonous spruce stands - a case study. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 61(5), 1261-1268. doi: 10.11118/actaun201361051261
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