Climate signal age effects in boreal tree-rings: Lessons to be learned for paleoclimatic reconstructions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F16%3A00473231" target="_blank" >RIV/86652079:_____/16:00473231 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.quascirev.2016.04.020" target="_blank" >http://dx.doi.org/10.1016/j.quascirev.2016.04.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.quascirev.2016.04.020" target="_blank" >10.1016/j.quascirev.2016.04.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Climate signal age effects in boreal tree-rings: Lessons to be learned for paleoclimatic reconstructions

Popis výsledku v původním jazyce

Age-related alternation in the sensitivity of tree-ring width (TRW) to climate variability has been reported for different forest species and environments. The resulting growth-climate response patterns are, however, often inconsistent and similar assessments using maximum latewood density (MXD) are still missing. Here, we analyze climate signal age effects (CSAE, age-related changes in the climate sensitivity of tree growth) in a newly aggregated network of 692 Pinus sylvestris L TRW and MXD series from northern Fennoscandia. Although summer temperature sensitivity of TRW (r(All) = 0.48) ranges below that of MXD (r(All) = 0.76), it declines for both parameters as cambial age increases. Assessment of CSAE for individual series further reveals decreasing correlation values as a function of time. This declining signal strength remains temporally robust and negative for MXD, while age-related trends in TRW exhibit resilient meanderings of positive and negative trends. Although CSAE are significant and temporally variable in both tree-ring parameters, MXD is more suitable for the development of climate reconstructions. Our results indicate that sampling of young and old trees, and testing for CSAE, should become routine for TRW and MXD data prior to any paleoclimatic endeavor.

Název v anglickém jazyce

Climate signal age effects in boreal tree-rings: Lessons to be learned for paleoclimatic reconstructions

Popis výsledku anglicky

Age-related alternation in the sensitivity of tree-ring width (TRW) to climate variability has been reported for different forest species and environments. The resulting growth-climate response patterns are, however, often inconsistent and similar assessments using maximum latewood density (MXD) are still missing. Here, we analyze climate signal age effects (CSAE, age-related changes in the climate sensitivity of tree growth) in a newly aggregated network of 692 Pinus sylvestris L TRW and MXD series from northern Fennoscandia. Although summer temperature sensitivity of TRW (r(All) = 0.48) ranges below that of MXD (r(All) = 0.76), it declines for both parameters as cambial age increases. Assessment of CSAE for individual series further reveals decreasing correlation values as a function of time. This declining signal strength remains temporally robust and negative for MXD, while age-related trends in TRW exhibit resilient meanderings of positive and negative trends. Although CSAE are significant and temporally variable in both tree-ring parameters, MXD is more suitable for the development of climate reconstructions. Our results indicate that sampling of young and old trees, and testing for CSAE, should become routine for TRW and MXD data prior to any paleoclimatic endeavor.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Quaternary Science Reviews

ISSN

0277-3791

e-ISSN

—

Svazek periodika

142

Číslo periodika v rámci svazku

JUN

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

164-172

Kód UT WoS článku

000378368700012

EID výsledku v databázi Scopus

2-s2.0-84968765119