Tree-Ring Stable Isotopes Reveal a Hydroclimate Shift in Eastern England Around 4.2 ka Ago

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F25%3A00619019" target="_blank" >RIV/86652079:_____/25:00619019 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/25:00141055 RIV/62156489:43210/25:43926906

Výsledek na webu

<a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024GL114313" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024GL114313</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2024GL114313" target="_blank" >10.1029/2024GL114313</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tree-Ring Stable Isotopes Reveal a Hydroclimate Shift in Eastern England Around 4.2 ka Ago

Popis výsledku v původním jazyce

Tree ring-based climate reconstructions are fundamental for high-resolution paleoclimatology, but only a few of them extend back into the mid-Holocene (8,200-4,200 years BP). Here, we present annually-resolved tree-ring stable carbon and oxygen isotopes (delta C-13 and delta O-18) from subfossil yew (Taxus baccata) wood excavated in the Fenland region of eastern England. We develop an eco-physiological model to reconstruct hydroclimate variability from 5,224 to 4,813 +/- 4 and 4,612-4,195 +/- 6 cal. years BP. Our findings suggest that a relative sea-level rise in the North Sea, riverine flooding, and a prolonged negative phase of the North Atlantic Oscillation caused unusually wet conditions around 4,200 years ago when yew woodlands in eastern England disappeared. We expect our study to stimulate high-resolution stable isotope measurements in relict wood and encourage the integration of terrestrial and marine proxy archives to reconstruct the causes and consequences of large-scale climate variations around the still debated 4.2 ka event. Plain Language Summary Understanding how the Earth's climate system has varied in the past is<br /> essential to predict future climate changes. In this study, we measured thousands of annually-resolved tree-ring widths and tree-ring stable isotopes in hundreds of subfossil yew trees excavated by generations of farmers in the Fenland region of eastern England. The exceptionally well-preserved wood archive, together with an innovative methodological approach allowed mid-Holocene hydroclimate variability to be reconstructed from circa 5,200-4,200 years ago. Our new paleoclimate record reveals unusually wet conditions around 4,200 years ago when yew woodlands in eastern England disappeared. Likely driven by a sea-level rise, riverine flooding. and a prolonged negative phase of the North Atlantic Oscillation, the observed environmental shift adds new insights into the period around the enigmatic 4.2 ka event. Our study also emphasizes the potential of stable isotopes in relict wood to reconstruct Holocene climate at high spatiotemporal resolution.

Název v anglickém jazyce

Tree-Ring Stable Isotopes Reveal a Hydroclimate Shift in Eastern England Around 4.2 ka Ago

Popis výsledku anglicky

Tree ring-based climate reconstructions are fundamental for high-resolution paleoclimatology, but only a few of them extend back into the mid-Holocene (8,200-4,200 years BP). Here, we present annually-resolved tree-ring stable carbon and oxygen isotopes (delta C-13 and delta O-18) from subfossil yew (Taxus baccata) wood excavated in the Fenland region of eastern England. We develop an eco-physiological model to reconstruct hydroclimate variability from 5,224 to 4,813 +/- 4 and 4,612-4,195 +/- 6 cal. years BP. Our findings suggest that a relative sea-level rise in the North Sea, riverine flooding, and a prolonged negative phase of the North Atlantic Oscillation caused unusually wet conditions around 4,200 years ago when yew woodlands in eastern England disappeared. We expect our study to stimulate high-resolution stable isotope measurements in relict wood and encourage the integration of terrestrial and marine proxy archives to reconstruct the causes and consequences of large-scale climate variations around the still debated 4.2 ka event. Plain Language Summary Understanding how the Earth's climate system has varied in the past is<br /> essential to predict future climate changes. In this study, we measured thousands of annually-resolved tree-ring widths and tree-ring stable isotopes in hundreds of subfossil yew trees excavated by generations of farmers in the Fenland region of eastern England. The exceptionally well-preserved wood archive, together with an innovative methodological approach allowed mid-Holocene hydroclimate variability to be reconstructed from circa 5,200-4,200 years ago. Our new paleoclimate record reveals unusually wet conditions around 4,200 years ago when yew woodlands in eastern England disappeared. Likely driven by a sea-level rise, riverine flooding. and a prolonged negative phase of the North Atlantic Oscillation, the observed environmental shift adds new insights into the period around the enigmatic 4.2 ka event. Our study also emphasizes the potential of stable isotopes in relict wood to reconstruct Holocene climate at high spatiotemporal resolution.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

1944-8007

Svazek periodika

52

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

e2024GL114313

Kód UT WoS článku

001456652900001

EID výsledku v databázi Scopus

2-s2.0-105002035559