Dendrochronology of Quercus ilex L. and its potential use for climate reconstruction in the Mediterranean region

2009 ◽  
Vol 39 (12) ◽  
pp. 2486-2493 ◽  
Author(s):  
F. Campelo ◽  
C. Nabais ◽  
I. García-González ◽  
P. Cherubini ◽  
E. Gutiérrez ◽  
...  
Keyword(s):  
Tree Ring ◽  
Tree Rings ◽  
Cross Sections ◽  
Quercus Ilex ◽  
Function Analysis ◽  
Ring Width ◽  
Tree Ring Width ◽  
Tree Ring Chronology ◽  
Evergreen Species ◽  
The Mediterranean

Holm oak ( Quercus ilex L.) is a long-lived species widely distributed across the Mediterranean Basin, with potential value for dendrochronology and dendroclimatology. However, tree-ring dating in Q. ilex is a complex task that has limited the number of dendrochronological studies using this evergreen species. In the present work, it was investigated if old Q. ilex trees showed annual tree rings and whether they can be used as climate proxies. A long tree-ring chronology (126 years) of Q. ilex was developed using cross sections of 20 trees from the Guadiana river basin (Portugal). The high correlation among tree-ring series suggested that tree growth was controlled mainly by climate. Response function analysis showed a positive correlation between tree-ring width and precipitation from October(t–1) of the previous year to January(t) of the current year and in May(t). Tree-ring width was negatively correlated with the North Atlantic oscillation that exerts a strong influence on the precipitation over Iberia. Negative pointer years were triggered by dry years and became more frequent during the last decade of the 20th century. In conclusion, it is possible to accurately date old Q. ilex trees, and their tree rings could be used for climate reconstructions across the Mediterranean.

scholarly journals Dendrochronological analysis and growth patterns of Polylepis reticulata (Rosaceae) in the Ecuadorian Andes

IAWA Journal ◽  
2019 ◽  
Vol 40 (2) ◽  
pp. 331-S5 ◽  
Author(s):  
C. Alvites ◽  
G. Battipaglia ◽  
G. Santopuoli ◽  
H. Hampel ◽  
R.F. Vázquez ◽  
...  
Keyword(s):  
Tree Ring ◽  
Tree Rings ◽  
Stand Structure ◽  
Climatic Factors ◽  
Southern Oscillation ◽  
Ring Width ◽  
Vapour Pressure Deficit ◽  
Growth Patterns ◽  
Tree Ring Width ◽  
Sources Of Information

ABSTRACTRelict tree species in the Andean mountains are important sources of information about climate variability and climate change. This study deals with dendroclimatology and growth patterns in Polylepis reticulata Hieron., growing at high elevation (mean of 4000 m a.s.l.) in three sites of the Ecuadorian Andes. The aims of the research were: (i) characterizing tree-ring boundaries; (ii) describing tree-ring patterns of the study sites; (iii) investigating the relationships between climate and radial tree growth; and (iv) determining the spatial correlation between seasonal climatic factors and tree-ring width of P. reticulata. Tree rings were characterized by semi-ring porosity and slight differences in fibre wall thickness between latewood and subsequent earlywood. In all sampling sites, tree rings in heartwood were more clearly visible than in sapwood. Tree-ring width was more related to temperature than to precipitation, with growth being also affected by site conditions and stand structure, as well as other local factors. No significant relationships were found between tree-ring chronologies of P. reticulata and El Niño-Southern Oscillation (ENSO) and Vapour Pressure Deficit indices. The study highlights that there is not a clear driving climate factor for radial growth of P. reticulata. Additional research is needed to study growth dynamics of this species and the impacts of local environmental variables.

Centroid of wood density, bole eccentricity, and tree-ring width in relation to vector winds in wave forests

1991 ◽  
Vol 21 (1) ◽  
pp. 73-82 ◽  
Author(s):  
Alexander Robertson
Keyword(s):  
Tree Ring ◽  
Wood Density ◽  
Cross Sections ◽  
Ring Width ◽  
Circular Statistics ◽  
Tree Ring Width ◽  
Cross Sectional ◽  
Mean Vector ◽  
Vector Wind ◽  
Densitometric Data

Circular statistics are used to analyse directional data inherent in X-ray densitometric data that pertain to cross-sectional discs sampled from balsam fir wave forest trees at Spirity Cove, Newfoundland. The analysis concentrates on directionality of centroids of mean wood density, bole eccentricity, and tree-ring width in eight directions from the pith. The results show that the centroid of mean wood density, bole cross sections, and mean tree-ring width are significantly directional and correspond closely with the mean vector wind direction.

?13C and tree-ring width reflect different drought responses in Quercus ilex and Pinus halepensis

Oecologia ◽  
2003 ◽  
Vol 137 (4) ◽  
pp. 512-518 ◽  
Author(s):  
J. P. Ferrio ◽  
A. Florit ◽  
A. Vega ◽  
L. Serrano ◽  
J. Voltas
Keyword(s):  
Tree Ring ◽  
Quercus Ilex ◽  
Pinus Halepensis ◽  
Ring Width ◽  
Tree Ring Width

Vessel features of Quercus ilex L. growing under Mediterranean climate have a better climatic signal than tree-ring width

Trees ◽  
2010 ◽  
Vol 24 (3) ◽  
pp. 463-470 ◽  
Author(s):  
Filipe Campelo ◽  
Cristina Nabais ◽  
Emilia Gutiérrez ◽  
Helena Freitas ◽  
Ignacio García-González
Keyword(s):  
Tree Ring ◽  
Mediterranean Climate ◽  
Quercus Ilex ◽  
Ring Width ◽  
Tree Ring Width ◽  
Climatic Signal

scholarly journals Climatic signals in tree-ring width and stable isotopes composition of Pinus sylvestris L. Growing in the industrialized area nearby Kędzierzyn-Koźle

2017 ◽  
Vol 44 (1) ◽  
pp. 240-255 ◽  
Author(s):  
Barbara Sensuła ◽  
Sławomir Wilczyński
Keyword(s):  
Stable Isotopes ◽  
Pinus Sylvestris ◽  
Tree Ring ◽  
Tree Rings ◽  
Climate Changes ◽  
Climatic Factors ◽  
Ring Width ◽  
Spectrometric Analysis ◽  
Tree Ring Width ◽  
The Impact

Abstract The main aims of these studies were dendrochronological and mass spectrometric analysis of the impact of climate on tree rings width and stable isotopes composition in pine (Pinus sylvestris L.). The conifers were growing in the vicinity of chemical and nitrogen factories in Kędzierzyn-Koźle (Poland) in the period of time from 1920s to 2012 AD. The combined usage of tree ring width and isotopic composition data provides historic records of the environment changes. These data allows identifying the behavior adaptation of pine growing under pollution stress to climate changes. The incremental rhythm of the studied pine populations was not identical, probably due to their different sensitivities to some climatic factors. This study evidences that the isotopic records in tree-rings α-cellulose may be sensitive bio-indicators of the way that the components of air and water may be changed by the trees in response to the climate changes and anthropogenic effects. The water use efficiency may be strongly correlated with variability of the surface temperature that may be due to increase of CO2 emission.

scholarly journals Floating Larch Tree-Ring Chronologies from Archaeological Timbers in the Russian Altai Between about 800 BC and AD 800

Radiocarbon ◽  
2007 ◽  
Vol 49 (2) ◽  
pp. 693-702 ◽  
Author(s):  
Irina Panyushkina ◽  
Igor Sljusarenko ◽  
Nikolay Bikov ◽  
Eugene Bogdanov
Keyword(s):  
Tree Ring ◽  
Tree Rings ◽  
Iron Age ◽  
Regional Scale ◽  
Ring Width ◽  
Tree Ring Width ◽  
Southeastern Part ◽  
Archaeological Wood ◽  
Pazyryk Culture ◽  
Tree Ring Data

We obtained over 200 archaeological wood specimens from the southeastern part of the Altai Mountains (Russia) to establish accurate calendar dates of the timbers using both radiocarbon and tree-ring analyses. Most timbers came from small and elite tombs of the Pazyryk culture (Siberian Scythians of the Iron Age period). Timbers from Hun-Sarmatian and Turk times (1st millennium AD) were studied for the first time. Three floating tree-ring width chronologies of larch (Larix sibirica) with lengths of 486 yr to 144 yr were developed from the tree-ring data. Tree rings of the composite 486-yr chronology of the Pazyryk culture represent the regional scale of Altai tree-ring width variability between about 720–240 BC. The composite chronology dates the earliest construction of Pazyryk culture tombs to ∼320 BC (ordinary tombs) and the latest ones at 240 BC (Pazyryk noble tomb #5). The composite chronology might be used for tree-ring dating wood from Scythian tombs in the region. It will also help confirm the precision of 14C dating of the Scythian tombs around the Hallstatt plateau of 14C calibration curves. We developed a 110-yr decadal 14C sequence from the Kurayka site that dates Kok-Pash culture timbers back to cal AD 240 (Hun-Sarmatian period). 14C dates of wooden poles from 3 sites of Turk stone enclosures suggested wood cutting dates between cal AD 470 and 830. The results demonstrate that crossdating tree rings along with 14C dating of crossdated rings provide the most reliable and highest precision dates for these archaeological sites.

Carbon isotope ratios in tree rings respond differently to climatic variations than tree-ring width in a mesic temperate forest

2020 ◽  
Vol 288-289 ◽  
pp. 108014
Author(s):  
R. Stockton Maxwell ◽  
Soumaya Belmecheri ◽  
Alan H. Taylor ◽  
Kenneth J. Davis ◽  
Troy W. Ocheltree
Keyword(s):  
Carbon Isotope ◽  
Tree Ring ◽  
Tree Rings ◽  
Temperate Forest ◽  
Ring Width ◽  
Isotope Ratios ◽  
Tree Ring Width ◽  
Carbon Isotope Ratios ◽  
Climatic Variations

Ecological interpretation of tree-ring width and intraannual density fluctuations inPinus sylvestrison dry sites in the central Alps and Siberia

2001 ◽  
Vol 31 (1) ◽  
pp. 18-31 ◽  
Author(s):  
Andreas Rigling ◽  
Philipp O Waldner ◽  
Theodor Forster ◽  
Otto U Bräker ◽  
Antti Pouttu
Keyword(s):  
Tree Ring ◽  
Radial Growth ◽  
Function Analysis ◽  
Ring Width ◽  
Growing Season ◽  
Density Fluctuations ◽  
Climatic Data ◽  
Central Alps ◽  
Tree Ring Width ◽  
Soil Substrate

The radial growth of Pinus sylvestris L. from nine sites at the semiarid lower forest border of the central Alps (Switzerland) and central Siberia (Russia) has been investigated using dendroecological methods. Tree growth differed according to soil substrate, with trees on dune sites showing lower mean ring widths, lower mean sensitivities, and higher autocorrelation. The relationships between climate and tree-ring width were studied using response function analysis. Independent of the climatic zone and the soil substrate, precipitation just before and at the beginning of the growing season is positively correlated with radial growth. The climatic response of dune sites is low, possibly because of the poor water-holding capacity and the high permeability of the sandy soils. Intraannual density fluctuations (IADFs) were observed at all the sites. Most IADFs were found in latewood. On dunes, fewer cores contain IADFs, and their frequency is lower. All stands showed significant relationships between IADF frequency and tree-ring width (positive) and ring age (negative). For Swiss sites, moist-cool conditions in the middle of the growing season are demonstrated as the triggering factor for IADFs. For the Russian sites, inadequate climatic data made it impossible to demonstrate any climate dependence of IADFs.

scholarly journals Climate Response in Tree-Rings of Sawara Cypress [Chamaecyparis pisifera (Siebold & Zucc.) Endl.] in Poland

Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 967
Author(s):  
Anna Cedro ◽  
Grzegorz Nowak ◽  
Halina Kowalewska-Kalkowska
Keyword(s):  
Tree Ring ◽  
Function Analysis ◽  
Winter Season ◽  
Ring Width ◽  
Native Forest ◽  
Climatic Data ◽  
Tree Ring Width ◽  
False Rings ◽  
Pointer Years ◽  
Chamaecyparis Pisifera

Sawara cypress [Chamaecyparis pisifera (Siebold & Zucc.) Endl.] is originally from Japan. It was introduced to Europe in the latter half of the 19th century (in England and Holland in 1861, and in Poland in 1864). The aim of this study was to examine the influence of climatic conditions on tree-ring width among Sawara cypress populations growing in Poland. Additionally, other indicators determining the growth-climate relationship for the studied tree species were investigated such as false rings, missing rings, or frost rings. Five stands of Sawara cypress from northwestern and central Poland were selected for study. Samples were taken from 97 trees, using Pressler borers at breast-height. Tree-ring widths were measured down to 0.01 mm. Climatic data came from weather stations located the nearest to the study plots. Tree-ring width in the studied populations of Sawara cypress varies (from 1.94 to 4.47 mm). The oldest Sawara cypresses grow in Glinna Arboretum and are nearly 130 years old. The youngest ones grow in Rogów Arboretum (67 years old) and Wirty Arboretum (58 years old). Ten regional pointer years, including six negative and four positive ones, were determined for local chronologies. Negative pointer years were associated with the occurrence of cold winters and water shortages in summer. Positive pointer years are mostly periods with a warm winter season, early and warm spring, and with high precipitation totals during summer months. Correlation and response function analysis corroborates the results yielded by pointer year analysis. False rings carry an additional information on pluvial conditions in the summer period, and frost rings are an aid in dating dendrochronological series and indicate the occurrence of both very cold winters and persistent ground frost occurrences in the spring period. In comparison to native conifers, the Sawara cypress can be regarded as a fast-growing species. The knowledge of acclimatization, growth rate, and growth-climate relationship may be useful, especially in the time of a rapidly changing climate, increasing human impact, and highly intensified invasion of insect and fungal species attacking native forest-forming taxa.

Sign in / Sign up

Export Citation Format

Share Document