scholarly journals Did the late spring frost in 2007 and 2011 affect tree-ring width and earlywood vessel size in Pedunculate oak (Quercus robur) in northern Poland?

2015 ◽  
Vol 60 (8) ◽  
pp. 1143-1150 ◽  
Author(s):  
Radosław Puchałka ◽  
Marcin Koprowski ◽  
Julia Przybylak ◽  
Rajmund Przybylak ◽  
Henryk P. Dąbrowski
Keyword(s):  
Tree Ring ◽  
Quercus Robur ◽  
Ring Width ◽  
Late Spring ◽  
Pedunculate Oak ◽  
Tree Ring Width ◽  
Vessel Size ◽  
Spring Frost ◽  
Late Spring Frost ◽  
Earlywood Vessel

scholarly journals Relation of tree-ring width and earlywood vessel size of alien Quercus rubra L. with climatic factors in Latvia

Silva Fennica ◽  
2015 ◽  
Vol 49 (4) ◽  
Author(s):  
Roberts Matisons ◽  
Jānis Jansons ◽  
Juris Katrevičs ◽  
Āris Jansons
Keyword(s):  
Tree Ring ◽  
Quercus Rubra ◽  
Climatic Factors ◽  
Ring Width ◽  
Tree Ring Width ◽  
Vessel Size ◽  
Earlywood Vessel

Soil moisture as a reliable pedunculate oak (Quercus robur L.) radial growth driver

2021 ◽  
Author(s):  
Saša Kostić ◽  
Wolfgang Wagner ◽  
Tom Levanič ◽  
Tzvetan Zlatanov ◽  
Ernest Goršić ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Tree Ring ◽  
Radial Growth ◽  
Quercus Robur ◽  
Mixed Model ◽  
New Technologies ◽  
Ring Width ◽  
Correlation Technique ◽  
Pedunculate Oak ◽  
Tree Ring Width

<p>New technologies, such as satellites and sensors, provide a wealth of new information about all ecosystems. In dendrochronological studies, all drought-related factors are of great importance for a more comprehensive understanding of associations between radial growth and water loss. Soil moisture directly reflects the wetness of immediate root surroundings, which is vital to the water uptake by trees. Owing to the advances in satellite observation systems and sensors, soil moisture (SM) can be remotely measured, opening new window in dendrochronological research.</p><p>Using the pedunculate oak (Quercus robur L.) lowland SE Europe forests dataset, which count 23 stands and more than 300 tree ring width (TRW) series, we observed reliable associations between satellite-based SM and TRW. Specifically, we observed different TRW−SM patterns based on the precipitation regime. SM in the hottest months (July and August) boosted radial growth, whereas opposite results were noted in the wettest spring months oaks that growing in wetter stands. Unlike oaks from drier and wetter stands that exhibited strong response to SM, those growing on moderately wet (optimal) stands are less sensitive to SM, making these stands optimal oak surroundings.</p><p>On the other hand, by applying a Generalized Additive Mixed Model (GAMM), we noted moderate−weak interactions between TRW series and smoothed SM timescales, with stronger deviations in extreme dry/wet years. Based on the TRW sensitivity to SM findings, which were interpreted via Pearson’s correlation technique and GAMM modeling, strong relations can be inferred, and SM can be labelled as reliable pedunculate oak driver.</p><p><strong>Keywords:</strong> Forestry, Remote sensing, Dendrochronology, Soil moisture, Pedunculate oak, GAMM</p><p><strong>Acknowledgments:</strong> This research was supported by the Science Fund of the Republic of Serbia, PROMIS, #6066697, TreeVita.</p><p><strong>Note:</strong> This contribution is a summary of a study by Kostić S, Wagner W, Orlović S, Levanič T, Zlatanov T, Goršić E, Kesić L, Matović B, Tsvetanov N, Stojanović DB. Different tree-ring width sensitivities to satellite-based soil moisture from drier, moderate and wetter pedunculate oak (Quercus robur L.) stands across a southeastern distribution margin (In press)</p>

Climatic factors controlling reproduction and growth of Norway spruce in southern Norway

2002 ◽  
Vol 32 (2) ◽  
pp. 217-225 ◽  
Author(s):  
Vidar Selås ◽  
Gianluca Piovesan ◽  
Jonathan M Adams ◽  
Mauro Bernabei
Keyword(s):  
Norway Spruce ◽  
Seed Production ◽  
Tree Ring ◽  
Climatic Factors ◽  
Statistical Significance ◽  
Ring Width ◽  
Tree Ring Width ◽  
Late Spring Frost ◽  
Southern Norway ◽  
June July

Time series of seed production and tree-ring width of Norway spruce (Picea abies (L.) Karst.) in southern Norway were analysed for their relationship to various climatic factors occurring during "key" stages, which a priori might be expected to show a strong climate response. The following factors combined in a multiple linear regression model were found to predict seed production (based on withheld data points) with considerable accuracy, at high levels of statistical significance: June–July mean temperature and August lowest temperature in the previous year, late spring frost and June–July precipitation of the last 2 years, and January–February lowest temperature in the current year. Tree ring width was negatively correlated with the seed production index of the current year and the lowest July temperature in the previous year and positively correlated with June-July precipitation in the current year. It is suggested that habitat constraints for seedling establishment should also be considered in a more general life-history cost theory to explain masting behaviour in forest trees.

scholarly journals Tree-Ring Chronologies of Downy Oak (Quercus Pubescens), Pedunculate Oak (Q. Robur) and Sessile Oak (Q. Petraea) in the Bielinek Nature Reserve: Comparison of the Climatic Determinants of Tree-Ring Width

2007 ◽  
Vol 26 (-1) ◽  
pp. 39-45 ◽  
Author(s):  
Anna Cedro
Keyword(s):  
Tree Ring ◽  
Nature Reserve ◽  
Statistical Significance ◽  
Ring Width ◽  
Meteorological Conditions ◽  
Radial Increment ◽  
Pedunculate Oak ◽  
Tree Ring Width ◽  
Quercus Pubescens ◽  
Sessile Oak

Tree-Ring Chronologies of Downy Oak (Quercus Pubescens), Pedunculate Oak (Q. Robur) and Sessile Oak (Q. Petraea) in the Bielinek Nature Reserve: Comparison of the Climatic Determinants of Tree-Ring WidthIn 2004-2006, 50 trees of downy oak (Quercus pubescens), pedunculate oak (Q. robur) and sessile oak (Q. petraea) were sampled in the Bielinek Nature Reserve. The following chronologies were established from their tree-ring series: OMS of 212 years (1793-2004) for downy oaks well as D10 of 183 years (1817-1999) and D13 of 211 years (1789-1999) for the two indigenous oak species pedunculate and sessile oak, respectively. These chronologies were used for signature years and response function analyses. All three chronologies were highly similar, which points to identical responses to the ambient meteorological conditions. The radial increment of downy oak depends primarily on the amount of precipitation. A high annual sum of precipitation, copious rain in spring-summer in particular, results in wide tree rings. Precipitation in form of rain and snow in winter, too, enhance tree growth by raising the groundwater level and improving the water supply in the habitat during the subsequent spring. Droughts in spring and summer, coupled with high air temperature, result in narrow rings. The tree-ring width/climate relationships at the two indigenous oak species are very similar to those of downy oak. Responses are, however, more distinct and with a higher statistical significance.

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

2015 ◽  
Vol 45 (6) ◽  
pp. 698-709 ◽  
Author(s):  
Borja D. González-González ◽  
Rosa Ana Vázquez-Ruiz ◽  
Ignacio García-González
Keyword(s):  
Quercus Robur ◽  
Ring Width ◽  
Spring Temperature ◽  
Climate Signal ◽  
Vessel Size ◽  
Carbohydrate Storage ◽  
Northwestern Spain ◽  
Earlywood Vessel ◽  
Earlywood Width ◽  
A Site

We analysed climate–growth relationships for two ring-porous oak species (Quercus robur L. and Q. pyrenaica Willd.) at one site in northwestern Spain. Increment cores from 12 living trees per species were taken for ring and earlywood vessel measurements, considering three width variables (for earlywood, latewood, and the whole ring) and six anatomical variables (based on vessel area distribution, number of vessels, and conductivity) in the earlywood. We used standard dendrochronological procedures and compared each mean series with meteorological records of temperature, precipitation, and estimates of soil water content. Earlywood width was negatively related to precipitation in the previous late season for Q. robur, but it was controlled by the previous spring temperature for Q. pyrenaica. These responses were highly dependent on vessel number and probably related to carbohydrate storage dynamics but differed between species. Vessel size showed a stronger relationship to climate and was mainly coupled to water excess during the winter for Q. robur but dependent on quiescence temperature for Q. pyrenaica; also, climatic signal in vessel size was maximized by the largest vessels for Q. pyrenaica but only increased slightly for Q. robur. Consequently, vessel parameters showed a much stronger climate signal than ring width and were successful at highlighting the differences between both oak species.

scholarly journals Tree-ring width and Variation of Wood Density in Fraxinus excelsior L. and Quercus robur L. Growing in Floodplain Forests

BioResources ◽  
2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Kyriaki Giagli ◽  
Jan Baar ◽  
Marek Fajstavr ◽  
Vladimír Gryc ◽  
Hanuš Vavrčík
Keyword(s):  
Tree Ring ◽  
Wood Density ◽  
Quercus Robur ◽  
Ring Width ◽  
Fraxinus Excelsior ◽  
Floodplain Forests ◽  
Tree Ring Width
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