The dendroclimatic value of oak stable isotopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F21%3A00549776" target="_blank" >RIV/86652079:_____/21:00549776 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43210/21:43919049 RIV/62156489:43410/21:43919049 RIV/00216224:14310/21:00121042

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1125786520301430" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1125786520301430</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dendro.2020.125804" target="_blank" >10.1016/j.dendro.2020.125804</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The dendroclimatic value of oak stable isotopes

Popis výsledku v původním jazyce

Tree-ring stable oxygen and carbon isotope ratios (818O and 813C) are an important archive for climate reconstructions. However, it remains unclear whether the polyvinyl acetate emulsion, often used for the preservation and fixation of wood samples, influences 818O and 813C signals. Further uncertainties are associated with the possible effects of geographical origin and cambial age of historical samples. Here, we present annuallyresolved and absolutely-dated 818O and 813C measurements of 21 living oaks (Quercus robur and Q. petraea) from the Czech Republic. We find that the 818O and 813C signals in the extracted alpha-cellulose are not affected by polyvinyl acetate treatment. Covering the entire 20th century and reaching until 2018 CE, our dataset reveals spatial and temporal coherency within and between the individual 818O and 813C chronologies of different oak species, sample locations, and tree ages. Highly significant (p < 0.01) Pearson's correlation coefficients of the site-specific 813C and 818O chronologies range from 0.48-0.77 and 0.36-0.56, respectively. The isotopic interseries correlations of Q. robur and Q. petraea from the same site are 0.75 and 0.43 for the mean 813C and 818O values, respectively. Significant (p < 0.01) correlations of 0.49 and 0.84 are found for 813C and 818O, respectively, when all measurements from all sampling locations and tree ages are included. Our study shows that nonpooled oak 818O and 813C measurements from both species, different locations, and diverse tree ages can be combined into robust isotopic chronologies for climate reconstructions.

Název v anglickém jazyce

The dendroclimatic value of oak stable isotopes

Popis výsledku anglicky

Tree-ring stable oxygen and carbon isotope ratios (818O and 813C) are an important archive for climate reconstructions. However, it remains unclear whether the polyvinyl acetate emulsion, often used for the preservation and fixation of wood samples, influences 818O and 813C signals. Further uncertainties are associated with the possible effects of geographical origin and cambial age of historical samples. Here, we present annuallyresolved and absolutely-dated 818O and 813C measurements of 21 living oaks (Quercus robur and Q. petraea) from the Czech Republic. We find that the 818O and 813C signals in the extracted alpha-cellulose are not affected by polyvinyl acetate treatment. Covering the entire 20th century and reaching until 2018 CE, our dataset reveals spatial and temporal coherency within and between the individual 818O and 813C chronologies of different oak species, sample locations, and tree ages. Highly significant (p < 0.01) Pearson's correlation coefficients of the site-specific 813C and 818O chronologies range from 0.48-0.77 and 0.36-0.56, respectively. The isotopic interseries correlations of Q. robur and Q. petraea from the same site are 0.75 and 0.43 for the mean 813C and 818O values, respectively. Significant (p < 0.01) correlations of 0.49 and 0.84 are found for 813C and 818O, respectively, when all measurements from all sampling locations and tree ages are included. Our study shows that nonpooled oak 818O and 813C measurements from both species, different locations, and diverse tree ages can be combined into robust isotopic chronologies for climate reconstructions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/EF16_019%2F0000797" target="_blank" >EF16_019/0000797: SustES - Adaptační strategie pro udržitelnost ekosystémových služeb a potravinové bezpečnosti v nepříznivých přírodních podmínkách</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Dendrochronologia

ISSN

1125-7865

e-ISSN

1612-0051

Svazek periodika

65

Číslo periodika v rámci svazku

FEB

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

8

Strana od-do

125804

Kód UT WoS článku

000727926900005

EID výsledku v databázi Scopus

2-s2.0-85098868453