Contact person: Martin Dušátko
The laboratory consists of two rooms. In the technical room, the gluing of dendrochronological boreholes to wooden slats takes place. Grinding of glued samples is carried out by our employees in the FLD workshop on narrow- and wide-belt sanders.
At the same time, there is a separate team led by Miloš Rydval which investigates the anatomical properties of wood carrying climatic signals. For these purposes, the samples are not ground, but cut on a microtome.
A large part of the department's archive, numbering over 35,000 boreholes, is stored in cabinets in the technical room. Occasionally, wood density is measured on a densitometer here.
There are five LINTAB measuring tables with accessories in the main room. On these tables, dendrochronological specimens are measured by recording the tree ring width for all years covered by the specimen.
The widths of the tree rings contain a spectrum of very valuable information that relates to the individual history of the given tree, the history of the surrounding vegetation, and the climatic variables that affected the tree during its growth period.
Just by looking at the tree ring width graph, we can infer whether the tree was shaded by surrounding trees, when it reached the crown layer, etc. However, measured tree-ring series often contain errors, which are identified and resolved using so-called cross-dating. We use TSAPWin software for measurements and CDendro software for subsequent cross-dating.