Laboratory for Dendroclimatology
GFZ Helmholtz Centre for Geosciences
About the Laboratory
Laboratory for Dendroclimatology
- Networks: Geo.X
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Description
The Laboratory for Dendroclimatology aims to reconstruct the temporal and spatial variability of the climate of the past utilizing multi-parameter tree ring analysis and to assess and verify the causes of climate change and its impact on woody plants.
The following tasks are covered:
- quantitative analysis of the climate-signal transfer from atmosphere through soil and leaf into the wood of tree rings (Monitoring, calibration and verification of tree ring parameters vs. instrumental data),
- to establish multi-centennial to millennium long time series of tree-ring parameters (ring width, cellstructure parameters, stable isotope ratios) for networks of sites from selected regions of the earth, and
- comparative study of time series of climate proxies from different geo-archives (varved sediments, spelethemes, corals etc.).
The lab is equipped with various technical field equipment, sample preparation tools, a LINTAB tree-ring measurement system and a calibrated optical scanner incl. analsysis software for dendrochronology, instruments to determine the wood chemistry (i.e. cellulose extraction), a confocal laser scanning microscope for the analysis of quantitative wood anatomy and wood density determination as well as two isotope ratio mass spectrometer for stable isotope analyses of tree rings.
Instruments
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Binocular
Binocular Microscope, Stereo Microscope - Optical Scanner
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Laser Microdissection Microscope
LAM, LCM -
CSLM - Confocal Laser Scanning Microscope
Confocal Microscope, LCSM, Laser Confocal Scanning Microscope -
Microtome
Sliding Microtome - Saw
- Increment Borer
- Belt Sander
-
HTTP-IRMS - High-Temperature Pyrolysis Isotope Ratio Mass Spectrometer
Isotopic Ratio Mass Spectrometer -
IRMS - Isotope Ratio Mass Spectrometer
Isotopic Ratio Mass Spectrometer
Analytical Methods
- Tree Ring Analysis
- Microscopy
-
CSLM - Confocal Laser Scanning Microscopy
Confocal Microscopy, LCSM, Laser Confocal Scanning Microscopy -
LMD - Laser Microdissection
LAM, LCM, Laser Capture Microdissection, Laser-assisted Microdissection, Microdissection - Microtomy
- HTP-IRMS - High-Temperature Pyrolysis Isotope Ratio Mass Spectrometry
-
IRMS - Isotope Ratio Mass Spectrometry
Stable Isotope Mass Spectrometry
Laboratory Keywords
- Cellulose Extraction
- Dendrochronology
- Tree-ring Measurement
- Wood Chemistry
- δ¹³C
- δ¹⁸O