Blue intensity, tree-ring dimensions, earlywood vessels and flood rings in floodplain Fraxinus pennsylvanica trees, central Canada

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10514632" target="_blank" >RIV/00216208:11310/25:10514632 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=_BkiF5Nu5O" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=_BkiF5Nu5O</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dendro.2025.126311" target="_blank" >10.1016/j.dendro.2025.126311</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Blue intensity, tree-ring dimensions, earlywood vessels and flood rings in floodplain Fraxinus pennsylvanica trees, central Canada

Popis výsledku v původním jazyce

Flood rings have been identified in numerous floodplain ring-porous tree species of the genus Fraxinus and Quercus. They are generally characterized by an earlywood having more numerous vessels with smaller crosssectional area compared to &quot;normal&quot; tree ring. In recent years, blue intensity (BI) has developed as a surrogate method to determine tree-ring density. The method, so far, has been restricted to coniferous species. No studies have assessed the utility of BI in floodplain ring-porous species and its association, among others, with earlywood vessel features and hydrological conditions. In this study, twenty green ash (Fraxinus pennsylvanica Marsh.) trees were analysed. Flood rings were identified with both cross-sectional area of all earlywood vessels &gt;= 1000 mu m2 and BI measured. Results indicated strong associations among given BI, tree-ring dimension, earlywood vessel and flood-ring chronologies. For instance, both earlywood BI (especially EW10BI) and Delta BI (DBI) showed significant inversed associations with earlywood porosity and with flood-ring abundance. These BI parameters were also strongly associated with spring discharge. In green ash, tree rings formed in years leading to flood-ring formation were characterized by increased earlywood density (higher blue intensity caused by an alteration in size and arrangement of earlywood vessels) and, to a lesser extent, by reduced latewood density. The BI features derived from the earlywood and the entire tree ring both prove to effectively complement visual identification of flood ring. Blue intensity in ring-porous species may prove useful in dendrohydrological reconstructions and also in wood sciences, i.e., when estimating tree-ring density is desired. In regards to ring- porous species, further work is warranted comparing software differences in determining BI, evaluating BI signal in other species and from various hydrological regimes.

Název v anglickém jazyce

Blue intensity, tree-ring dimensions, earlywood vessels and flood rings in floodplain Fraxinus pennsylvanica trees, central Canada

Popis výsledku anglicky

Flood rings have been identified in numerous floodplain ring-porous tree species of the genus Fraxinus and Quercus. They are generally characterized by an earlywood having more numerous vessels with smaller crosssectional area compared to &quot;normal&quot; tree ring. In recent years, blue intensity (BI) has developed as a surrogate method to determine tree-ring density. The method, so far, has been restricted to coniferous species. No studies have assessed the utility of BI in floodplain ring-porous species and its association, among others, with earlywood vessel features and hydrological conditions. In this study, twenty green ash (Fraxinus pennsylvanica Marsh.) trees were analysed. Flood rings were identified with both cross-sectional area of all earlywood vessels &gt;= 1000 mu m2 and BI measured. Results indicated strong associations among given BI, tree-ring dimension, earlywood vessel and flood-ring chronologies. For instance, both earlywood BI (especially EW10BI) and Delta BI (DBI) showed significant inversed associations with earlywood porosity and with flood-ring abundance. These BI parameters were also strongly associated with spring discharge. In green ash, tree rings formed in years leading to flood-ring formation were characterized by increased earlywood density (higher blue intensity caused by an alteration in size and arrangement of earlywood vessels) and, to a lesser extent, by reduced latewood density. The BI features derived from the earlywood and the entire tree ring both prove to effectively complement visual identification of flood ring. Blue intensity in ring-porous species may prove useful in dendrohydrological reconstructions and also in wood sciences, i.e., when estimating tree-ring density is desired. In regards to ring- porous species, further work is warranted comparing software differences in determining BI, evaluating BI signal in other species and from various hydrological regimes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

—

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

Dendrochronologia

ISSN

1125-7865

e-ISSN

1612-0051

Svazek periodika

91

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

13

Strana od-do

126311

Kód UT WoS článku

001449172400001

EID výsledku v databázi Scopus

2-s2.0-86000514679