Response and mortality of beech, fir, spruce and sycamore to rapid light exposure after large-scale disturbance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43920086" target="_blank" >RIV/62156489:43410/21:43920086 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.foreco.2021.119554" target="_blank" >https://doi.org/10.1016/j.foreco.2021.119554</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.foreco.2021.119554" target="_blank" >10.1016/j.foreco.2021.119554</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Response and mortality of beech, fir, spruce and sycamore to rapid light exposure after large-scale disturbance

Popis výsledku v původním jazyce

Physiological response to rapid light exposure due to canopy disintegration in young beech, fir, Norway spruce and sycamore trees was measured in three consecutive years after the severe ice storm in 2014 and after windthrow in 2017. Nitrogen amount (Ntot), maximum assimilation response to light (Amax) and quantum yield (Φ) were measured in three categories of different light intensities under closed canopy with indirect site factor (ISF) &lt; 15%, at the forest edge (15% &lt;ISF &lt; 25%) and in the open (ISF &gt; 25%). Tree responses with number of seedlings per hectare were compared between damaged and undamaged sites, with young trees gradually adapting to light conditions in the two years following the two disturbance events. Nitrogen levels were in the optimal range for all species studied. Rapid exposure to elevated light reduced efficiency in fir and increased efficiency in beech and especially sycamore. No differences in response were observed in spruce. Assimilation efficiency, where both tree species were equal, shifted towards shade. Recovery was similar for all species studied after both disturbances: better after the windstorm, compared to the ice storm, indicating the severity of the event. Reductions in seedling numbers followed the pattern observed for physiological traits.

Název v anglickém jazyce

Response and mortality of beech, fir, spruce and sycamore to rapid light exposure after large-scale disturbance

Popis výsledku anglicky

Physiological response to rapid light exposure due to canopy disintegration in young beech, fir, Norway spruce and sycamore trees was measured in three consecutive years after the severe ice storm in 2014 and after windthrow in 2017. Nitrogen amount (Ntot), maximum assimilation response to light (Amax) and quantum yield (Φ) were measured in three categories of different light intensities under closed canopy with indirect site factor (ISF) &lt; 15%, at the forest edge (15% &lt;ISF &lt; 25%) and in the open (ISF &gt; 25%). Tree responses with number of seedlings per hectare were compared between damaged and undamaged sites, with young trees gradually adapting to light conditions in the two years following the two disturbance events. Nitrogen levels were in the optimal range for all species studied. Rapid exposure to elevated light reduced efficiency in fir and increased efficiency in beech and especially sycamore. No differences in response were observed in spruce. Assimilation efficiency, where both tree species were equal, shifted towards shade. Recovery was similar for all species studied after both disturbances: better after the windstorm, compared to the ice storm, indicating the severity of the event. Reductions in seedling numbers followed the pattern observed for physiological traits.

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

2021

Kód důvěrnosti údajů

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

Název periodika

Forest Ecology and Management

ISSN

0378-1127

e-ISSN

—

Svazek periodika

498

Číslo periodika v rámci svazku

15 October

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

119554

Kód UT WoS článku

000686595900009

EID výsledku v databázi Scopus

2-s2.0-85111010249