Elevated CO2 concentration alleviates the negative effect of vapour pressure deficit and soil drought on juvenile poplar growth

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F24%3A43925432" target="_blank" >RIV/62156489:43210/24:43925432 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.2478/forj-2024-0017" target="_blank" >https://doi.org/10.2478/forj-2024-0017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/forj-2024-0017" target="_blank" >10.2478/forj-2024-0017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Elevated CO2 concentration alleviates the negative effect of vapour pressure deficit and soil drought on juvenile poplar growth

Popis výsledku v původním jazyce

The growth performance of short-rotation woody coppice (SRWC) is strongly influenced by successful establishment in the initial months after planting. Future climates, expected to be warmer due to elevated atmospheric CO2 (eCO2), may bring about more frequent soil droughts alongside increased vapour pressure deficit (eVPD). Hence, this growth chamber experiment aimed to explore the interactive effects of eVPD, eCO2, and soil drought on growth and physiology traits of juvenile hybrid poplars under warmer climates. Our findings with juvenile hybrid poplar J-105 revealed that eVPD resulted in reductions in leaf area (-21%), root (-20%) and stem biomass (-9%), as well as in net assimilation (-15%), stomatal conductance (-26%), and transpiration (-13%). However, these decreases were relatively minor compared to the compensating effect of eCO2, which generally exerted a stronger influence than eVPD. While soil drought emerged as the primary growth-limiting factor in our study, elevated VPD is not expected to pose a significant additional threat to central European SRWC plantations of juvenile hybrid poplars under future conditions of ongoing climate change.

Název v anglickém jazyce

Elevated CO2 concentration alleviates the negative effect of vapour pressure deficit and soil drought on juvenile poplar growth

Popis výsledku anglicky

The growth performance of short-rotation woody coppice (SRWC) is strongly influenced by successful establishment in the initial months after planting. Future climates, expected to be warmer due to elevated atmospheric CO2 (eCO2), may bring about more frequent soil droughts alongside increased vapour pressure deficit (eVPD). Hence, this growth chamber experiment aimed to explore the interactive effects of eVPD, eCO2, and soil drought on growth and physiology traits of juvenile hybrid poplars under warmer climates. Our findings with juvenile hybrid poplar J-105 revealed that eVPD resulted in reductions in leaf area (-21%), root (-20%) and stem biomass (-9%), as well as in net assimilation (-15%), stomatal conductance (-26%), and transpiration (-13%). However, these decreases were relatively minor compared to the compensating effect of eCO2, which generally exerted a stronger influence than eVPD. While soil drought emerged as the primary growth-limiting factor in our study, elevated VPD is not expected to pose a significant additional threat to central European SRWC plantations of juvenile hybrid poplars under future conditions of ongoing climate change.

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

2024

Kód důvěrnosti údajů

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

Název periodika

Central European Forestry Journal

ISSN

2454-034X

e-ISSN

2454-0358

Svazek periodika

70

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

11

Strana od-do

51-61

Kód UT WoS článku

001251226600001

EID výsledku v databázi Scopus

2-s2.0-85196651646