The University of Arizona

The Laboratory of Tree-Ring Research

Research Activities

LTRR logo
Dendrochronology has been applied as a research tool to many natural scientific disciplines, and it also constitutes its own line of research in many respects. Below is a list of various subdisciplines of dendrochronology, each of which has a list of recent publications that were authored or coauthored by someone currently at the Laboratory of Tree-Ring Research. Direct e-mail links to authors are provided to aid in requesting reprints or more information about any particular article or general research endeavor.

Click here to see a full list of research publications of LTRR since 1950, sorted by year.

Dendroclimatology: Reconstruction and study of past and present climate, including temperature, precipitation, and/or moisture availability. dendroclimatology symbol

Dendroecology: Study of past and present forest ecological form and function, including topics such as fire and/or insect dynamics and forest composition history. dendro-fire ecology image

Dendrogeomorphology: Study of present landforms and past geomorphic processes, including volcanic eruptions, earthquakes, avalanches, glacial movement, and landslides. dendrogeomorphology image


Dendrohydrology: Related to dendroclimatology, reconstruction and study of past and present hydrologic phenomena, including water supply, river flow, and flood frequencies. dendrohydrology image

Archeology: Dating and study of behavior of past human cultures.


Original artwork by David Street.

Stable Isotopes: Study of stable isotopes of carbon, oxygen, and/or hydrogen of tree rings and application of results in various climatological, ecological, or hydrological contexts. dendro-isotope image

Dendrochemistry-Environmental Studies: Analysis of inorganic elements in tree rings and interpretation of chemical changes in the environment through time. dendro-environmental studies image


Basic Techniques: Improving methods of dendrochronology, including use of high-technology methods such as X-ray densitometry and image analysis. image analysis image


Quantitative Methods: Basic research on how best to quantitatively analyze tree-ring data. quantitatve methods


Laboratory of Tree-Ring Research, The University of Arizona
Tucson, Arizona 85721 USA
Main Office: (520) 621-1608, Fax: (520) 621-8229
Comments to Paul Sheppard: