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.
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 applied.
- 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
- To reconstruct summer temperatures in northern Fennoscandia
during the last few thousand years.
- To reconstruct solar irradiance during the last 300-400 years.
- 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 years.
- 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 interrelation
- 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
- 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 biodiversity.
Lithuanian State Sciences and Studies
Foundation - Complex investigation of Stone Age pile dwelling
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 cells structure.
- 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
- Compiled a tree radial growth chronologies would be valuable
analysing and dating other pile dwelling settlements from the
©Group of Dendroclimatology and Radiometrics,
last updated 11-04-2015