Laboratory of Dendrochronology
grybų rūšys vertingų medžių patogenezėje: pavojingų būklių diagnostika
ir prognozė / Invasive fungi species in the pathogenesis of valuable
trees: diagnosis and forecast of dangerous states. Project
is supported by Reserch Council of Lithuania (LEK-10021).
Project duration: August of 2010 - December of 2011.
- to investigate the sensitivity of valuable greeneries to
invasions of the pathogenic fungi and to improve the detecting methods
for new Phytophthora genus and other fungi,
causing damages in a tree stems applying the spatial diagnostic
structure of internal damages.
- to assess the disturbance symptoms of fungi from Phytophthora
genus investigating by a non-destructive impulsometric
device Arbotom 3-D pack;
- to explore the differences of the symptoms from the other
decay causing fungi;
- to evaluate the possibility diagnosis of a decay symptom
assessed by a non-destructive technique and to compare them to the
results obtained using wood cores;
- to investigate the spread, variety, and harm caused by
pathogens of Phytophthora genus, injuring
ornamental woody plants in Lithuania and to estimate the adaptation of
- to ascertain the interaction between vitality of trees and
pathogen species and to develop the prediction models;
- to elaborate recommendations and publicize the information
on the non-destructive diagnostic methods of the dangerous states of
trees and the control of new pathogenic species.
(Variability using a High Resolution Isotopic Network): 400 years of
Annual Reconstructions of European Climate. Project
is supported by European commission within the 5th framework.
Project duration: 2003-2006.
- To establish a network for stable isotopes (C, H, O) ISONET
in Europe, using oak and pine tree-ring chronologies for the last 400
years climate spatio-temporal reconstruction.
- To investigate a potential indicator for climate change -
seasonal signal accumulated in the tree ring series.
- To construct new models for non-linear transfer function
and processes, improving usage of meteorological and isotopic data.
- To ascertain information of natural processes changes,
characteristics of extreme events and present climate change, valuable
for the independent verification and improvement of climate models and
more effective policy. For this purpose compiled models will be
- To perform a computer based image modeling of European
climate change in 1601-2000 using constructed time series.
INTAS project 2001-0550:
The Solar-terrestrial climate link in the past millennia and its
influence on future climate
Project duration - 2002-2005.
- To reconstruct different parameters describing solar
activity over time scales of 1000 years, using available proxies as
direct observations, historic data, records of cosmogenic isotopes and
nitrate concentration in terrestrial archives and ice cores.
- To reconstruct summer temperatures in northern Fennoscandia
during the last few thousand years.
- To reconstruct solar irradiance during the last 300-400
- To measure the concentration of stable isotope 13C in
tree-rings from northern Finland during the last 500 years.
- To develop mathematical methods for statistical processing
of long non-stationary time series corrupted by colored and
non-additive noises and irregularly distributed gaps.
- To perform statistical analyses on all the available data
(both direct measurements and proxies, including the data obtained in
framework of the project) in order to identify factors, which have
influenced on the terrestrial climate in the past few thousands of
- To investigate the solar-terrestrial climate link, its
character, extent, and time evolution over time intervals from the last
decades up to the last few millennia.
- To investigate the mechanisms of solar-climate
- To prepare a forecast for climatic changes for the future
Lithuanian State Sciences
and Studies Foundation - Research on genetic biodiversity and growth
heterogeneity of Scots pine
Project duration - 2005.
- To evaluate the role of genotype on the effect of
extreme climatic conditions and climate change to the radial growth of
Scots pine (Pinus sylvestris L.).
- To estimate dependence of genetic biodiversity on the
environmental pollution and to develop economically based growing
recommendations for Scots pine in heavy polluted regions.
- To estimate the role of pine genotype on the survival in
the heavy antropogenic regions.
- To develop economically based growing recommendations of
Scots pine for Lithuanian foresters, taking into account results on
- To improve the research methods on tree genetic
Lithuanian State Sciences
and Studies Foundation - Complex investigation of Stone Age pile
Project duration - 2001-2004.
Responsible for the research work - Lithuanian Historical Institute.
Leader - Habil. dr. A. Girininkas.
- To perform a comprehensive analysis on remnants of wooden
constructions from Stone Age pile dwelling settlement.
- To establish tree species, technological processing and age
structure of trees, used for house building by inhabitants.
- Dendrochronological dating of building and repairs of
wooden post constructions has been expected for the first time in
- To estimate a felling time of trees and seasonal building
activity by inhabitants using anatomical analysis of the last tree
- To reconstruct possible sites of trees used in
constructions comparing radial growth dynamics of trees used in
constructions with growth curves of living trees from the same species
and different sites.
- Compiled a tree radial growth chronologies would be
valuable analysing and dating other pile dwelling settlements from the
©Group of Dendroclimatology and Radiometrics