Needle traits of understory Silver fir, Norway spruce, and Scots pine in response to increased canopy openness in a birch-dominated stand

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020702%3A_____%2F25%3AN0000059" target="_blank" >RIV/00020702:_____/25:N0000059 - isvavai.cz</a>

Výsledek na webu

<a href="https://iforest.sisef.org/abstract/?id=ifor4909-018" target="_blank" >https://iforest.sisef.org/abstract/?id=ifor4909-018</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3832/ifor4909-018" target="_blank" >10.3832/ifor4909-018</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Needle traits of understory Silver fir, Norway spruce, and Scots pine in response to increased canopy openness in a birch-dominated stand

Popis výsledku v původním jazyce

The study investigates the impact of varying environmental treatments on the needle morphology, chemistry, and photosynthetic performance of Silver fir (Abies alba), Norway spruce (Picea abies), and Scots pine (Pinus sylvestris) undergrowth in a birch (Betula pendula)-dominated young forest. The experiment analyzed the effects of different levels of birch canopy reduction. The treatments included a birch preparatory stand managed through positive tending of promising birch trees (PS), a restored small clearing (RC), and a former clearing overgrown by birch sprouts (OC), while the control treatment was left unmanaged. The aim was to evaluate the rate of adaptation to irradiation changes among these species. Fir and pine exhibited significant needle morphological changes within the first year after canopy opening, while spruce needles remained relatively stable. In the first year after release, pine and fir new needles in the RC treatment had reduced K (and Mg in fir), while spruce needles increased N and Ca concentrations. Chlorophyll a fluorescence measurements indicated that photosynthetic efficiency tended to slightly decrease across all species when exposed to higher irradiance. The results show high plasticity of the species in response to the changes in light conditions of the nurse stand. The means of the adaptation were specific for each species, but the new conditions did not limit the adaptation potential for any of them.

Název v anglickém jazyce

Needle traits of understory Silver fir, Norway spruce, and Scots pine in response to increased canopy openness in a birch-dominated stand

Popis výsledku anglicky

The study investigates the impact of varying environmental treatments on the needle morphology, chemistry, and photosynthetic performance of Silver fir (Abies alba), Norway spruce (Picea abies), and Scots pine (Pinus sylvestris) undergrowth in a birch (Betula pendula)-dominated young forest. The experiment analyzed the effects of different levels of birch canopy reduction. The treatments included a birch preparatory stand managed through positive tending of promising birch trees (PS), a restored small clearing (RC), and a former clearing overgrown by birch sprouts (OC), while the control treatment was left unmanaged. The aim was to evaluate the rate of adaptation to irradiation changes among these species. Fir and pine exhibited significant needle morphological changes within the first year after canopy opening, while spruce needles remained relatively stable. In the first year after release, pine and fir new needles in the RC treatment had reduced K (and Mg in fir), while spruce needles increased N and Ca concentrations. Chlorophyll a fluorescence measurements indicated that photosynthetic efficiency tended to slightly decrease across all species when exposed to higher irradiance. The results show high plasticity of the species in response to the changes in light conditions of the nurse stand. The means of the adaptation were specific for each species, but the new conditions did not limit the adaptation potential for any of them.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

iForest-Biogeosciences and Forestry

ISSN

1971-7458

e-ISSN

—

Svazek periodika

18

Číslo periodika v rámci svazku

OCT 2025

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

10

Strana od-do

273-282

Kód UT WoS článku

001594314200001

EID výsledku v databázi Scopus

—