Tree-ring δ18O and δ2H stable isotopes reflect the global meteoric water line

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F24%3A00604114" target="_blank" >RIV/86652079:_____/24:00604114 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/24:00138629

Výsledek na webu

<a href="https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1440064/full" target="_blank" >https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1440064/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/feart.2024.1440064" target="_blank" >10.3389/feart.2024.1440064</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tree-ring δ18O and δ2H stable isotopes reflect the global meteoric water line

Popis výsledku v původním jazyce

Introduction The Global Meteoric Water Line (GMWL) describes the linear relationship between stable hydrogen (delta 2H) and oxygen (delta 18O) isotopes in precipitation over large spatial scales and therefore represents a unique reference for water isotopic values. Although trees have the potential to capture the isotopic composition of precipitation, it remains unclear if the GMWL can be reconstructed from tree-ring stable isotopes, since delta 18O and delta 2H undergo in vivo physiological fractionation.Methods We analyze the tree rings delta 18O and delta 2H values from six regions along a latitudinal gradient from Spain to Greenland.Results The data show that the covariance between delta 18O and delta 2H closely follows the GMWL, which reflects the isotopic signature of large-scale precipitation patterns. We show that changes in regional tree-ring delta 18O and delta 2H values along wide latitudinal ranges are influenced by the isotopic composition of precipitation with temperature and latitude being the most significant drivers of spatial variation across the studied regions. In contrast, local tree-ring delta 18O and delta 2H values are mainly controlled by plant physiological fractionation processes that mask the isotopic signature of precipitation.Conclusion We conclude that covariance in tree-ring delta 18O and delta 2H reflects the GMWL at larger spatial scales, but not when evaluating them at individual sites.

Název v anglickém jazyce

Tree-ring δ18O and δ2H stable isotopes reflect the global meteoric water line

Popis výsledku anglicky

Introduction The Global Meteoric Water Line (GMWL) describes the linear relationship between stable hydrogen (delta 2H) and oxygen (delta 18O) isotopes in precipitation over large spatial scales and therefore represents a unique reference for water isotopic values. Although trees have the potential to capture the isotopic composition of precipitation, it remains unclear if the GMWL can be reconstructed from tree-ring stable isotopes, since delta 18O and delta 2H undergo in vivo physiological fractionation.Methods We analyze the tree rings delta 18O and delta 2H values from six regions along a latitudinal gradient from Spain to Greenland.Results The data show that the covariance between delta 18O and delta 2H closely follows the GMWL, which reflects the isotopic signature of large-scale precipitation patterns. We show that changes in regional tree-ring delta 18O and delta 2H values along wide latitudinal ranges are influenced by the isotopic composition of precipitation with temperature and latitude being the most significant drivers of spatial variation across the studied regions. In contrast, local tree-ring delta 18O and delta 2H values are mainly controlled by plant physiological fractionation processes that mask the isotopic signature of precipitation.Conclusion We conclude that covariance in tree-ring delta 18O and delta 2H reflects the GMWL at larger spatial scales, but not when evaluating them at individual sites.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

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

Frontiers in Earth Science

ISSN

2296-6463

e-ISSN

2296-6463

Svazek periodika

12

Číslo periodika v rámci svazku

DEC

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

1440064

Kód UT WoS článku

001388392300001

EID výsledku v databázi Scopus

2-s2.0-85213309473