Effects of climate on earlywood vessel formation of Quercus robur and Q. pyrenaica at a site in the northwestern Iberian Peninsula

González-González, Borja D.; Vázquez‐Ruiz, Rosa Ana; García‐González, Ignacio

doi:10.1139/cjfr-2014-0436

Cited by 29 publications

(23 citation statements)

References 43 publications

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“…However, the existing data are based mostly on widespread evergreen trees (e.g. Viera et al 2009;Campelo et al 2010;Martin-Benito et al 2011Candel-Perez et al 2012;Gimeno et al 2012), and deciduous species have been much less studied in the Mediterranean area (e.g., Tegel et al 2014;González-González et al 2015). Even less is known about the response to climate change of small trees and shrubs at low altitudes in the thermo-Mediterranean.…”

Section: Introductionmentioning

confidence: 99%

Long-term effect of temperature and precipitation on radial growth in a threatened thermo-Mediterranean tree population

Żywiec

Muter

Zielonka

et al. 2016

Trees

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Key message Based on the first dendroclimatological analyses of the thermo-Mediterranean tree Pyrus bourgaeana, the positive relationship between the growth and climate (i.e., precipitation) has strengthened in recent decades. Abstract The combined effect of climate change and habitat destruction and fragmentation threatens many plant populations and even entire communities in Mediterranean ecosystems. The Iberian pear, Pyrus bourgaeana Decne, a characteristic species of Mediterranean ecosystems, is threatened by both habitat and climate changes. We ask whether and how the growth of mature P. bourgaeana in the thermo-Mediterranean zone (i.e., altitude \700 m) has been affected by long-term climate changes during the last century in a fragmented landscape. Dendrochronological methods were used to find growth-climate relationships. We made the first dendroclimatological analyses and constructed a first 103-year tree-ring chronology of this species. The tree-ring series revealed large growth variability. We found a clear, strong relationship between tree growth and climate, with annual precipitation being the most important climate factor enhancing radial growth. Our results also showed that warm autumns and winters positively affect growth. There was no temporal stability in the relationship between tree growth and climate. The most general trend was in the relationship between annual precipitation and tree growth: the decrease of rainfall in the last decades of the twentieth century was associated with a constant increase of the correlation coefficient. Water accumulated in the soil in autumn and winter proved to be a key factor augmenting tree growth in the following vegetation period. The climate-growth relationship in P. bourgaeana has strengthened in recent decades apparently due to decreased precipitation levels.

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Section: Introductionmentioning

confidence: 99%

Long-term effect of temperature and precipitation on radial growth in a threatened thermo-Mediterranean tree population

Żywiec

Muter

Zielonka

et al. 2016

Trees

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“…Reduction in vessel diameter upon experienced drought has been observed for 6-year-old saplings of both Q. robur and Q. petraea and can be interpreted as an adaptation of the tree to protect its vessels against cavitation [24]. A distinct relationship between meteorological variables and vessel diameter was also detected for in situ adult Q. robur trees [50]. In our study, the water limiting conditions in the first growing season, followed by plentiful re-watering, also led to a higher probability of forming intra-annual density fluctuations in the secondary xylem of this growing season, independent of the taxon of the mother tree.…”

Section: Drought Responsesmentioning

confidence: 81%

Drought Treated Seedlings of Quercus petraea (Matt.) Liebl., Q. robur L. and Their Morphological Intermediates Show Differential Radial Growth and Wood Anatomical Traits

Mijnsbrugge

Turcsán

Erdélyi

et al. 2020

Forests

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Background and Objectives: Studying responses in woody plants upon water limitation is gaining importance due to the predicted increase in frequency and intensity of droughts in Europe. We studied the variation in radial growth and in wood anatomical traits caused by water limited growth conditions in offspring from Quercus petraea (Matt.) Liebl., Q. robur L. and their morphological intermediates grown in the same environment. Materials and Methods: Cross sections were prepared from the stems of 210 three-year-old potted seedlings, comprising control plants and seedlings that experienced from late spring until early autumn of the first growing season two sequential periods of water with-holding each followed by plentiful re-watering. Pith radius, ring width of the three growing seasons and latewood vessel diameter in second and third growing season were measured. Presence of intra-annual density fluctuations, dendritic patterns of latewood vessels and the level of ring closure of earlywood vessels were observed. The traits were modelled to examine the explanatory power of the taxon of the mother tree and the drought treatment. Results: Most of the traits displayed significant differences between offspring from Q. petraea and Q. robur and offspring from the morphological intermediates behaved inconsistent among the traits. Most of the traits were significantly affected by the drought stress in the first growing season. Apart from radial growth, also latewood vessel size was reduced in the two growing seasons following the year in which drought was imposed on the seedlings, suggesting an adaptation to improve the tolerance to drought stress. We also found an indication for a compensation growth mechanism, counteracting the lost growing time during the drought stress, as the level of ring closure of the earlywood vessels in the year following the drought treatment was further advanced in the treated seedlings, an effect that disappeared in the subsequent year. Conclusion: Oaks exposed to drought adapt their growth and xylem structure to improve drought resistance. While youth growth of Q. robur is more competition-oriented, with a faster juvenile growth, Q. petraea seems to invest more in a precautious growth, being more prepared for stressful conditions. It is therefore possible that Q. robur seedlings may suffer more from intensified droughts than Q. petraea seedlings.

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“…As cambial resumption of ring‐porous oaks starts before bud break (Copini et al., ; Kudo et al., ; Pérez‐de‐Lis et al., ), and vessel functionality occurs just before the leaf expansion (Guada, García‐González, Pérez‐de‐Lis, Vázquez‐Ruiz, & Montserrat‐Martí, ; Kitin & Funada, ) the formation of EW vessels relies on the amount of stored carbohydrates from the previous growing season. A shortage of carbohydrates as an effect of high winter temperatures can therefore be associated with the formation of smaller vessels (González‐González, Vazquez‐Ruiz, & García‐González, ). In contrast, high average temperatures during March–May have a positive effect on vessel size at the southeastern (the most inland) sites.…”

Section: Discussionmentioning

confidence: 99%

Multi‐variable approach pinpoints origin of oak wood with higher precision

Akhmetzyanov

Buras

Sass‐Klaassen

et al. 2019

Journal of Biogeography

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Aim Spatial variations of environmental conditions translate into biogeographical patterns of tree growth. This fact is used to identify the origin of timber by means of dendroprovenancing. Yet, dendroprovenancing attempts are commonly only based on ring‐width measurements, and largely neglect additional tree–ring variables. We explore the potential of using wood anatomy as a dendroprovenancing tool, and investigate whether it increases the precision of identifying the origin of oak wood. Since different tree–ring variables hold different information on environmental conditions prevailing at specific times of the growing season—which vary between source regions—we hypothesize that their inclusion allows more precise dendroprovenancing. Location Europe, Spain. Taxon Quercus robur L., Quercus petraea (Matt.) Liebl., Quercus faginea Lam., Quercus pyrenaica Willd. Methods We sampled four oak species across Northern Spain, i.e. from the Basque country and Cantabria and—in the Basque country—from low to high elevation (topographic/latitudinal gradient). We measured multiple tree–ring variables to (a) extract complementary variables; (b) present statistical relations among them; (c) analyse region‐specific variation in their patterns based on time–series of individual trees; and (d) determine underlying climate–growth relationships. Leave‐one‐out analysis was used to test whether a combination of selected variables allowed dendroprovenancing of a randomly selected tree within the area. Results A combination of latewood width (LW) and earlywood vessel size was used to pinpoint the origin of oak wood with higher precision than ring width or LW only. Variation in LW pinpointed the wood to east and west areas, whereas variation in vessels assigned wood to locations along a latitudinal/topographic gradient. The climatic triggers behind these gradients are respectively an east–west gradient in June–July temperature and a north–south gradient in winter/spring temperatures. The leave‐one‐out analyses supported the robustness of these results. Main conclusions Integration of multiple wood–xylem anatomical variables analysed with multivariate techniques leads to higher precision in the dendroprovenancing of ring‐porous oak species.

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Effects of climate on earlywood vessel formation of Quercus robur and Q. pyrenaica at a site in the northwestern Iberian Peninsula

Cited by 29 publications

References 43 publications

Long-term effect of temperature and precipitation on radial growth in a threatened thermo-Mediterranean tree population

Long-term effect of temperature and precipitation on radial growth in a threatened thermo-Mediterranean tree population

Drought Treated Seedlings of Quercus petraea (Matt.) Liebl., Q. robur L. and Their Morphological Intermediates Show Differential Radial Growth and Wood Anatomical Traits

Multi‐variable approach pinpoints origin of oak wood with higher precision

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