Diurnal and seasonal changes in stem radius increment and sap flow density indicate different responses of two co-existing oak species to drought stress

I. Mészáros, Péter Kanalas, A. Fenyvesi, József Kis, Balázs Nyitrai, Erzsébet Szollosi, Viktor Oláh, Zita Demeter, Ágnes Lakatos, István Ander

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Using continuous monitoring of stem radius combined with sap flow measurements we assessed the effects of environmental conditions on tree radial growth and water status of two coexisting oak species (Quercus petraea and Quercus cerris) at high resolution time in growing seasons of 2008 and 2009. The forest (95-100 yr) is situated in a xeric site in the transition zone between forested and forest-steppe regions in north-eastern Hungary, Bükk mountains (47°90'N, 20°46'E, elevation 320-340 m a.s.l.). Weather conditions in the growing season of 2008 (total rainfall 354 mm, mean daily temperature 17.0 °C) was less extreme than in 2009 (total rainfall 299 mm, temperature 17.9 °C). Rainfall strongly determined the course of radial growth increment in trees. Radial growth of trees was limited in 2009 due to the drought in spring. The maximum radial increment of both species was achieved three weeks earlier (4 th week of June) than in 2008 (4 th week of July). We used dendrometer monitoring data for estimation of stem (tree) water deficit (ΔW) by measuring water-related changes in stem radius (Zweifel et al. 2005). The magnitude of tree water deficit variation (ΔW) was always smaller in Q. cerris than in Q. petraea. In contrast, Quercus cerris always exhibited larger daytime averages and maxima of sap flow density. In August of 2009 when drought became severe there were larger increases in tree water deficit (ΔW) (50-55 %) in both species compared to July as it could be expected from the extent of decreases in sap flow density (24-28%). Our data suggested that due to the low SWC the transpiration was supported mainly from the inner water storage of trees during prolonged drought which resulted in high stem water deficit (ΔW).

Original languageEnglish
Pages (from-to)97-108
Number of pages12
JournalActa Silvatica et Lignaria Hungarica
Volume7
Publication statusPublished - 2011

Fingerprint

sap flow
drought stress
Quercus
water stress
stem
stems
Quercus cerris
water
Quercus petraea
drought
rain
rainfall
growing season
dendrometers
forest-steppe
monitoring
flow measurement
oak
water storage
steppes

Keywords

  • Drought
  • Forest
  • Potential evapotranspiration
  • Quercus cerris
  • Quercus petraea
  • Stem (tree) water deficit

ASJC Scopus subject areas

  • Forestry

Cite this

Diurnal and seasonal changes in stem radius increment and sap flow density indicate different responses of two co-existing oak species to drought stress. / Mészáros, I.; Kanalas, Péter; Fenyvesi, A.; Kis, József; Nyitrai, Balázs; Szollosi, Erzsébet; Oláh, Viktor; Demeter, Zita; Lakatos, Ágnes; Ander, István.

In: Acta Silvatica et Lignaria Hungarica, Vol. 7, 2011, p. 97-108.

Research output: Contribution to journalArticle

Mészáros, I. ; Kanalas, Péter ; Fenyvesi, A. ; Kis, József ; Nyitrai, Balázs ; Szollosi, Erzsébet ; Oláh, Viktor ; Demeter, Zita ; Lakatos, Ágnes ; Ander, István. / Diurnal and seasonal changes in stem radius increment and sap flow density indicate different responses of two co-existing oak species to drought stress. In: Acta Silvatica et Lignaria Hungarica. 2011 ; Vol. 7. pp. 97-108.
@article{d2a32efd8bb241f6a1c1ade722078e9e,
title = "Diurnal and seasonal changes in stem radius increment and sap flow density indicate different responses of two co-existing oak species to drought stress",
abstract = "Using continuous monitoring of stem radius combined with sap flow measurements we assessed the effects of environmental conditions on tree radial growth and water status of two coexisting oak species (Quercus petraea and Quercus cerris) at high resolution time in growing seasons of 2008 and 2009. The forest (95-100 yr) is situated in a xeric site in the transition zone between forested and forest-steppe regions in north-eastern Hungary, B{\"u}kk mountains (47°90'N, 20°46'E, elevation 320-340 m a.s.l.). Weather conditions in the growing season of 2008 (total rainfall 354 mm, mean daily temperature 17.0 °C) was less extreme than in 2009 (total rainfall 299 mm, temperature 17.9 °C). Rainfall strongly determined the course of radial growth increment in trees. Radial growth of trees was limited in 2009 due to the drought in spring. The maximum radial increment of both species was achieved three weeks earlier (4 th week of June) than in 2008 (4 th week of July). We used dendrometer monitoring data for estimation of stem (tree) water deficit (ΔW) by measuring water-related changes in stem radius (Zweifel et al. 2005). The magnitude of tree water deficit variation (ΔW) was always smaller in Q. cerris than in Q. petraea. In contrast, Quercus cerris always exhibited larger daytime averages and maxima of sap flow density. In August of 2009 when drought became severe there were larger increases in tree water deficit (ΔW) (50-55 {\%}) in both species compared to July as it could be expected from the extent of decreases in sap flow density (24-28{\%}). Our data suggested that due to the low SWC the transpiration was supported mainly from the inner water storage of trees during prolonged drought which resulted in high stem water deficit (ΔW).",
keywords = "Drought, Forest, Potential evapotranspiration, Quercus cerris, Quercus petraea, Stem (tree) water deficit",
author = "I. M{\'e}sz{\'a}ros and P{\'e}ter Kanalas and A. Fenyvesi and J{\'o}zsef Kis and Bal{\'a}zs Nyitrai and Erzs{\'e}bet Szollosi and Viktor Ol{\'a}h and Zita Demeter and {\'A}gnes Lakatos and Istv{\'a}n Ander",
year = "2011",
language = "English",
volume = "7",
pages = "97--108",
journal = "Acta Silvatica et Lignaria Hungarica",
issn = "1786-691X",
publisher = "University of West Hungary Press",

}

TY - JOUR

T1 - Diurnal and seasonal changes in stem radius increment and sap flow density indicate different responses of two co-existing oak species to drought stress

AU - Mészáros, I.

AU - Kanalas, Péter

AU - Fenyvesi, A.

AU - Kis, József

AU - Nyitrai, Balázs

AU - Szollosi, Erzsébet

AU - Oláh, Viktor

AU - Demeter, Zita

AU - Lakatos, Ágnes

AU - Ander, István

PY - 2011

Y1 - 2011

N2 - Using continuous monitoring of stem radius combined with sap flow measurements we assessed the effects of environmental conditions on tree radial growth and water status of two coexisting oak species (Quercus petraea and Quercus cerris) at high resolution time in growing seasons of 2008 and 2009. The forest (95-100 yr) is situated in a xeric site in the transition zone between forested and forest-steppe regions in north-eastern Hungary, Bükk mountains (47°90'N, 20°46'E, elevation 320-340 m a.s.l.). Weather conditions in the growing season of 2008 (total rainfall 354 mm, mean daily temperature 17.0 °C) was less extreme than in 2009 (total rainfall 299 mm, temperature 17.9 °C). Rainfall strongly determined the course of radial growth increment in trees. Radial growth of trees was limited in 2009 due to the drought in spring. The maximum radial increment of both species was achieved three weeks earlier (4 th week of June) than in 2008 (4 th week of July). We used dendrometer monitoring data for estimation of stem (tree) water deficit (ΔW) by measuring water-related changes in stem radius (Zweifel et al. 2005). The magnitude of tree water deficit variation (ΔW) was always smaller in Q. cerris than in Q. petraea. In contrast, Quercus cerris always exhibited larger daytime averages and maxima of sap flow density. In August of 2009 when drought became severe there were larger increases in tree water deficit (ΔW) (50-55 %) in both species compared to July as it could be expected from the extent of decreases in sap flow density (24-28%). Our data suggested that due to the low SWC the transpiration was supported mainly from the inner water storage of trees during prolonged drought which resulted in high stem water deficit (ΔW).

AB - Using continuous monitoring of stem radius combined with sap flow measurements we assessed the effects of environmental conditions on tree radial growth and water status of two coexisting oak species (Quercus petraea and Quercus cerris) at high resolution time in growing seasons of 2008 and 2009. The forest (95-100 yr) is situated in a xeric site in the transition zone between forested and forest-steppe regions in north-eastern Hungary, Bükk mountains (47°90'N, 20°46'E, elevation 320-340 m a.s.l.). Weather conditions in the growing season of 2008 (total rainfall 354 mm, mean daily temperature 17.0 °C) was less extreme than in 2009 (total rainfall 299 mm, temperature 17.9 °C). Rainfall strongly determined the course of radial growth increment in trees. Radial growth of trees was limited in 2009 due to the drought in spring. The maximum radial increment of both species was achieved three weeks earlier (4 th week of June) than in 2008 (4 th week of July). We used dendrometer monitoring data for estimation of stem (tree) water deficit (ΔW) by measuring water-related changes in stem radius (Zweifel et al. 2005). The magnitude of tree water deficit variation (ΔW) was always smaller in Q. cerris than in Q. petraea. In contrast, Quercus cerris always exhibited larger daytime averages and maxima of sap flow density. In August of 2009 when drought became severe there were larger increases in tree water deficit (ΔW) (50-55 %) in both species compared to July as it could be expected from the extent of decreases in sap flow density (24-28%). Our data suggested that due to the low SWC the transpiration was supported mainly from the inner water storage of trees during prolonged drought which resulted in high stem water deficit (ΔW).

KW - Drought

KW - Forest

KW - Potential evapotranspiration

KW - Quercus cerris

KW - Quercus petraea

KW - Stem (tree) water deficit

UR - http://www.scopus.com/inward/record.url?scp=84859327092&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859327092&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84859327092

VL - 7

SP - 97

EP - 108

JO - Acta Silvatica et Lignaria Hungarica

JF - Acta Silvatica et Lignaria Hungarica

SN - 1786-691X

ER -