Winter warming response of gas-exchange and growth of Abies alba and Picea abies seedlings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F24%3A00605324" target="_blank" >RIV/67985939:_____/24:00605324 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s00468-023-02473-7" target="_blank" >https://doi.org/10.1007/s00468-023-02473-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00468-023-02473-7" target="_blank" >10.1007/s00468-023-02473-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Winter warming response of gas-exchange and growth of Abies alba and Picea abies seedlings

Popis výsledku v původním jazyce

Climate change is significantly altering the carbon sequestration potential of European forest ecosystems. Elevated winter temperatures at high latitudes can have a negative impact on the carbon balance and subsequent growth of evergreen trees. This study aimed to test the hypothesis of a negative impact of elevated winter temperature on winter respiration, carbon balance and growth of evergreen coniferous trees in Denmark. Seedlings of Abies alba and Picea abies were exposed to elevated temperatures (2-8degree celsius increase) for one month during the winter of 2020 using outdoor infrared heaters and greenhouses. Both species showed a significant increase in respiration under higher temperatures, possibly negatively affecting their total leaf carbon balance. Dark respiration increased by 15-16% per 1 degree celsius increase in the monthly average temperature for both species. Neither Abies alba nor Picea abies showed downregulation of dark respiration under prolonged elevated temperatures. Radial and height growth in the following season was negatively correlated with winter temperature treatment for Picea abies, but not for Abies alba. Unfortunately, the Picea abies seedlings were attacked by aphids which could affect the growth as well. Further research focused on the impact of winter warming on carbohydrate reserves is needed to fully understand why warming winters negatively affect the growth of some evergreen conifers, but not others.

Název v anglickém jazyce

Winter warming response of gas-exchange and growth of Abies alba and Picea abies seedlings

Popis výsledku anglicky

Climate change is significantly altering the carbon sequestration potential of European forest ecosystems. Elevated winter temperatures at high latitudes can have a negative impact on the carbon balance and subsequent growth of evergreen trees. This study aimed to test the hypothesis of a negative impact of elevated winter temperature on winter respiration, carbon balance and growth of evergreen coniferous trees in Denmark. Seedlings of Abies alba and Picea abies were exposed to elevated temperatures (2-8degree celsius increase) for one month during the winter of 2020 using outdoor infrared heaters and greenhouses. Both species showed a significant increase in respiration under higher temperatures, possibly negatively affecting their total leaf carbon balance. Dark respiration increased by 15-16% per 1 degree celsius increase in the monthly average temperature for both species. Neither Abies alba nor Picea abies showed downregulation of dark respiration under prolonged elevated temperatures. Radial and height growth in the following season was negatively correlated with winter temperature treatment for Picea abies, but not for Abies alba. Unfortunately, the Picea abies seedlings were attacked by aphids which could affect the growth as well. Further research focused on the impact of winter warming on carbohydrate reserves is needed to fully understand why warming winters negatively affect the growth of some evergreen conifers, but not others.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Trees: structure and function

ISSN

0931-1890

e-ISSN

1432-2285

Svazek periodika

38

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

17

Strana od-do

151-167

Kód UT WoS článku

001123206200001

EID výsledku v databázi Scopus

2-s2.0-85179345805