Beech and silver fir's different light response along the latitudinal gradient

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Beech and silver fir's different light response along the latitudinal gradient

Popis výsledku v původním jazyce

On eleven permanent plots, positioned in uneven aged beech and fir forests above 800m along the Balkan&apos;s peninsula the physiological (quantum yield) and morphological response (degree of plagiotropic growth) to light intensity was studied in three predefined light categories during three consecutive growing periods (2011, 2012, 2013). Responses were compared between light categories and between managed and old growth reserves to predict possible future responses in beech and fir. Meteorological data showed decrease of cumulative precipitation, without change in temperature between plots. Foliar nitrogen amount also confirmed no significant differences between studied categories and plots. Beech was most efficient in the open area light conditions, while fir under shelter. Physiological response (Φ) for beech increased towards SE and reached its maximal values in the middle of studied transect, while fir&apos;s response decreased from the NE part of the transect towards SE. Tendency to plagiotropism decreased from NE to SE in both species, indicating less shade tolerance by approaching towards southern sites. Φ in old growth reserves confirmed shift in category of forest edge towards open light for both beech and fir, and better shade tolerance than neighbouring managed forests. Silvicultural implications are discussed.

Název v anglickém jazyce

Beech and silver fir's different light response along the latitudinal gradient

Popis výsledku anglicky

On eleven permanent plots, positioned in uneven aged beech and fir forests above 800m along the Balkan&apos;s peninsula the physiological (quantum yield) and morphological response (degree of plagiotropic growth) to light intensity was studied in three predefined light categories during three consecutive growing periods (2011, 2012, 2013). Responses were compared between light categories and between managed and old growth reserves to predict possible future responses in beech and fir. Meteorological data showed decrease of cumulative precipitation, without change in temperature between plots. Foliar nitrogen amount also confirmed no significant differences between studied categories and plots. Beech was most efficient in the open area light conditions, while fir under shelter. Physiological response (Φ) for beech increased towards SE and reached its maximal values in the middle of studied transect, while fir&apos;s response decreased from the NE part of the transect towards SE. Tendency to plagiotropism decreased from NE to SE in both species, indicating less shade tolerance by approaching towards southern sites. Φ in old growth reserves confirmed shift in category of forest edge towards open light for both beech and fir, and better shade tolerance than neighbouring managed forests. Silvicultural implications are discussed.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

40102 - Forestry

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of Central European Silviculture

ISBN

978-80-213-2866-2

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

10

Strana od-do

11-20

Název nakladatele

Česká zemědělská univerzita v Praze

Místo vydání

Praha

Místo konání akce

Doksy

Datum konání akce

4. 9. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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