Coppicing modulates physiological responses of sessile oak (Quercus petraea Matt. Lieb.) to drought

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F22%3A43921491" target="_blank" >RIV/62156489:43410/22:43921491 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41320/22:92928

Výsledek na webu

<a href="https://doi.org/10.1016/j.foreco.2022.120253" target="_blank" >https://doi.org/10.1016/j.foreco.2022.120253</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.foreco.2022.120253" target="_blank" >10.1016/j.foreco.2022.120253</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Coppicing modulates physiological responses of sessile oak (Quercus petraea Matt. Lieb.) to drought

Popis výsledku v původním jazyce

Droughts negatively affect tree vitality, growth and mortality in temperate forests. Appropriate forest management may help mitigate these adverse effects. One such silvicultural system is coppicing, which increases a stand&apos;s drought resistance compared to high forests, but the underlying mechanisms are not well explored. Here, we aimed to deepen our mechanistic understanding of the performance of sessile oak (Quercus petraea) in response to drought stress. We compared mature trees, young coppice and seedlings. We measured seasonal variation of tree water status, photosynthesis, and biometric traits of sessile oak over three growing seasons. Coppicing increased water use and photosynthesis both under drought stress conditions and favorable conditions. During mild to severe drought, coppiced trees had better access to water and assimilated more carbon per unit of leaf area than seedlings and mature trees. The lowest predawn water potential of -4.21 MPa was recorded in seedlings, which was by 0.8 MPa less than in the coppice. Photosynthesis rates were highest in the coppice, but the water use efficiency of the coppice fell in between mature trees (higher WUEi) and seedlings (lower WUEi). Combined measurements of chlorophyll fluorescence and gas exchange suggested that coppice, seedlings and mature trees responded differently to drought. Coppice had the highest yield in light reactions of photosynthesis and the highest carbon assimilation. Coppicing improves the physiological vitality of young sprousts which makes it a suitable silvicultural system for dry sites.

Název v anglickém jazyce

Coppicing modulates physiological responses of sessile oak (Quercus petraea Matt. Lieb.) to drought

Popis výsledku anglicky

Droughts negatively affect tree vitality, growth and mortality in temperate forests. Appropriate forest management may help mitigate these adverse effects. One such silvicultural system is coppicing, which increases a stand&apos;s drought resistance compared to high forests, but the underlying mechanisms are not well explored. Here, we aimed to deepen our mechanistic understanding of the performance of sessile oak (Quercus petraea) in response to drought stress. We compared mature trees, young coppice and seedlings. We measured seasonal variation of tree water status, photosynthesis, and biometric traits of sessile oak over three growing seasons. Coppicing increased water use and photosynthesis both under drought stress conditions and favorable conditions. During mild to severe drought, coppiced trees had better access to water and assimilated more carbon per unit of leaf area than seedlings and mature trees. The lowest predawn water potential of -4.21 MPa was recorded in seedlings, which was by 0.8 MPa less than in the coppice. Photosynthesis rates were highest in the coppice, but the water use efficiency of the coppice fell in between mature trees (higher WUEi) and seedlings (lower WUEi). Combined measurements of chlorophyll fluorescence and gas exchange suggested that coppice, seedlings and mature trees responded differently to drought. Coppice had the highest yield in light reactions of photosynthesis and the highest carbon assimilation. Coppicing improves the physiological vitality of young sprousts which makes it a suitable silvicultural system for dry sites.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

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

1872-7042

Svazek periodika

517

Číslo periodika v rámci svazku

1 August

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

120253

Kód UT WoS článku

000806645500009

EID výsledku v databázi Scopus

2-s2.0-85129951313