Tree-ring research revisited.


The study of wood formation at different temporal and spatial scales is, clearly, in need of techniques enabling to capture sufficient multi-scale detail (Battipiglia et al. 2014). Both technological advances as well as related computational techniques will help in increasing our understanding of tree response in a changing climate and changing needs, supporting sustainable production of both timber and non-timber products. The aim of dendrochronomics is to develop a high-throughput multi-scale hard- and software platform to obtain and analyze continuous time series of multi-proxy data, with intra-annual resolution, on increment cores mainly. The platform comprises 3 essential breakthrough steps: high-throughput acquisition of multi-proxy tree-ring series, guided cross-dating and advanced time-aware analysis. The backbone of dendrochronomics is advanced multi-scale X-ray CT scanning (see example below for an increment core of Quercus spp.) at one hand and full imaging of long microtome cross-sections (see example below for Entandrophragma spp) at the other hand.


Yegor Tarelkin


Within dendrochronomics, we also aim at the development of a database, both containing pith-to-bark density profiles based on 3D X-ray CT volumes as well as (partially annotated) pith-to-bark cross-sections. Currently, more than 5000 cores from locations in Africa and Europe haven been X-ray CT scanned (see map below, which will be updated regularly). Software and a test volume, used in the papers of Van den Bulcke et al. (2014) and De Mil et al. (2016) can be downloaded here . The toolboxes come without manual for the moment and are built with MATLAB R2017b (9.3). You need to install the proper Matlab Runtime Version .

Following projects (number corresponds with 'projectnr' in the pop-up on the map) and associated people contributed to the database:

  1. IFS funded PhD Moses Libalah
  2. ITTO funded PhD dr. Agathe Dié
  3. VLIR-UOS funded PhD dr. Maaike De Ridder
  4. Master thesis Victor Deklerck
  5. ERC PASTFORWARD : Prof. Kris Verheyen, Sybryn Maes

Collaborate with us

If you are interested in applying dendrochronomics in your work or you want to know more about X-ray CT scanning for tree-ring analysis or the database, feel free to contact us for collaboration. You can find additional information on the UGent-Woodlab website.