Forest regeneration under standards of pedunculate oak (Quercus robur L.) = Obnova lesa pod výstavky dubu letního (Quercus robur L.)

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Work objective was to establish reasons to the impaired vitality of woody and herbaceous vegetation growing under standards of pedunculate oak. The paper analyzes the influence of insolation, root competition, soil moisture content and chemical composition of soil on the growth of pedunculate oak seedlings under standards. The analyses included three standards of pedunculate oak aged over 150 years, growing at an altitude of 160 m a.s.l. Controls were plots occurring at a distance of 20 m from the standards. Conclusions following out from the analyses are as follows: The number of seedlings emerged under the standards was lower than the number of seedlings emerged in the open area. Shoot height as well as root collar diameter of seedlings under the standards were lower than in the control seedlings. Total cover of herbaceous layer and height of herbs under the standards were lower than in the open area. The impaired vitality of woody and herbaceous vegetation resulted from a great amount of the fine roots of pedunculate oak standards, withdrawing water up to the wilting point. The amount of photosynthetic active radiation under the standards was sufficient for the growth of plants. … full description

Bibliographic Details

Main Author

Jiří Libus

Other Authors

Oldřich Mauer, 1950-

Document Type

Articles

Physical Description

7 il.

Published in

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. -- ISSN 1211-8516. -- Roč. 57, č. 5 (2009), s. 197-204

Subjects

lesní porosty

listnaté lesy

dub letní

obnova lesních porostů

přirozená regenerace

semenáčky

životaschopnost

odumírání

růst

vrstvy vegetace

podrost

kořenový systém

konkurence rostlin

obsah půdní vody

FOREST STANDS

BROADLEAVED FORESTS

QUERCUS ROBUR

NATURAL REGENERATION

SEEDLINGS

VIABILITY

DIEBACK

GROWTH

PLANT STRATA

UNDERGROWTH

ROOT SYSTEMS

PLANT COMPETITION

SOIL WATER CONTENT

Item Description

3 grafy, 4 tabulky

Bibliography

Literatura na s. 204