Remes, Hovorka

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Remes, Hovorka
REMEŠ,J., HOVORKA, J.: Vliv druhového složení a struktury stromového patra na stav humusových forem v NPR Trčkov
_____________________________________________________________________________________________________
VLIV DRUHOVÉHO SLOŽENÍ
A STRUKTURY STROMOVÉHO PATRA NA
STAV HUMUSOVÝCH FOREM V NPR
TRČKOV
Jiří Remeš – Jiří Hovorka
Abstract
Remeš,J., Hovorka, J.: Impact of tree species composition and stand structure on
humus forms in the Nature Reserve Trčkov
The contribution presents the results of research, that was directed to evaluation of stand species
composition and stand structure impact on humus forms state in the Nature Reserve Trčkov (Orlické
hory Mts.). Three types of the forest stands which include spruce monoculture, beech monoculture
and mixed multi-storeyed stand (spruce was main species and silver fir and European beech were
admixed species), were selected for this object of the research. Forest soil dynamics evaluation was
second part of this project, that was achieved by comparing of new data with older one from the
previous research. The results confirm distinct positive effect of beech species on soil chemistry
properties of the forest floor. On the other hand, pure spruce stand is approved unfavourable on the
main soil chemistry criterions. Soil dynamic development between years 1996 – 2003 indicates
continuing unfavourable changes – acidification, losses of the bases content in base-exchange
complex and decline of the available nutrients.
Keywords: Nature reserves, forest ecosystems, forest soil, stand species composition, soil chemistry,
degradation
_____________________________________________________________________________________________________
Sborník z konference: DŘEVINY A LESNÍ PŮDA – BIOLOGICKÁ MELIORACE A JEJÍ VYUŽITÍ. Vydala 22. března 2004,
KPL FLE ČZU v Praze, ISBN 80-213-1146-0, kontakt: [email protected]

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