Characteristics of <sup>3rd</sup> (<i>Querci-fageta</i> s. lat.) and <sup>4th</sup> (<i>Fageta (abietis</i>) s. lat.) vegetation tiers of north-eastern Moravia and Silesia (Czech Republic)
2008
Holuša, O. | Holuša, J.
Detailed characteristics (tree species composition, tree representation, identification features) are presented by 3<sup>rd</sup> (i.e. geobiocenoses of <I>Querci-fageta</I> s. lat.) and 4<sup>th</sup> (<I>Fageta (abietis</I>) s. lat.) vegetation tiers in north-eastern Moravia and Silesia. 3<sup>rd</sup> VT occupies 45.6% of the study area – from 190 m a.s.l. up to 430 m a.s.l. <I>Fagus sylvatica</I> is a dominant tree (with the height of 35–40 m). <I>Quercus robur</I> and <I>Quercus petraea</I> have their ecological optimums there with the representation of up to 30%. <I>Abies alba</I> occurs in the crown level with the representation of up to 10%. 4<sup>th</sup> occupies 35.2% of the study area – from 310 m a.s.l. up to 650 m a.s.l. <I>Fagus sylvatica</I> is dominant (the height over 50 m). <I>Abies alba</I> occurs in the co-dominant level (sporadically in the level exceeding the main level) with the representation of ±20% and the height of up to 50 m. <I>Quercus petraea</I> and <I>Quercus robur</I> occur only as an interspersed species with the representation of up to 10%, they do not reach the co-dominant tree level any more. <I>Carpinus betulus</I> is represented regularly only in the overtopped tree level.
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