The Tree-Ring Society is a non-profit international scientific association dedicated to global tree-ring research and education. 

Goals of the Society are:

  • To promote tree-ring research and career development for the global dendrochronology community
  • To provide a forum for dendrochronologists to communicate by supporting the regular organization of conferences and workshops all over the world.  
  • To publish results of tree-ring studies in our journal Tree-Ring Research
  • To disseminate knowledge of tree-ring research to other disciplines and to the public

The Tree-Ring Society offers multiple membership levels.  This includes 50% discount on membership fees to students, retirees, and colleagues in lower-income countries.  We use the  World Bank income classifications (current as of July 2016) define countries with lower income category (any below "high").  Membership includes a subscription to Tree-Ring Research, conference information, and conference discounts.   Members vote on the locations of the Ameridendro and WorldDendro conferences.  

Our journal Tree-Ring Research is in digital-only format.  Members have full password access to all articles.  Tree-Ring Research has an impact factor (2015) of 2.565; the 5-year impact factor is 2.220.  Please visit the journal pages and consider submitting your tree-ring related papers. We offer authors an open-access option, with a reduced cost for members.   

 High resolution versions of past issues  of Tree-Ring Bulletin and Tree-Ring Research from Volume 1 (1934-35) to Volume 62 (2006) are available from the University of Arizona.  (We are working on getting later volumes online.)

The Tree-Ring Society is on Facebook and Twitter. And be sure to join The Tree-Ring Times, a Facebook forum dedicated to disseminating and discussing information, news items, and recent activities and advances in the tree-ring sciences.

The Tree-Ring Society offers a Traveling Dendro Kit for workshops and fieldweeks that provides the basic equipment for sampling and crossdating.  This kit includes five increment borers, microscope (ten optical plus a digital scope), battery-operated lights, sanding equipment, straws, and more, in a hard-sided suitcase that weighs less than 22 kg (50 lbs) to meet most airline check-in baggage requirements. Please contact Peter Brown (pmb at rmtrr dot org) for more details about borrowing the kit for your workshop or fieldweek.   


The Tree-Ring Society is now a recognized 501(c)(3) USA nonprofit!  

Conferences and Workshops

16th International Course on Wood Anatomy of Tree Rings: "Wood Anatomy & Tree-Ring Ecology", Klosters Dorf, Switzerland, 27 November to 3 December 2016. Organized by: Holger Gärtner, Alan Crivellaro and Fritz H. Schweingruber.

The American Geophysical Union 2016 in San Francisco, CA, USA 12-16 December 2016 will feature several sessions related to dendrochronology. Abstracts were due August 3

Extended final call!  Paper abstracts due 17 November 2016 for the Association of American Geographers Annual MeetingBoston, Massachusetts, 5-9 April 2017.  Sessions may include:

Frontiers in Dendrochronology (invited)




Dendrochronological Applications

If you have interest in presenting in an organized session, contact any of the organizers with a working title and sub discipline.  Abstracts should be submitted online to the AAG. Once you have registered, please email the AAG PIN number to Christopher Gentry (  Organizers: Christopher Gentry (, Henri Grissino-Mayer (, Grant Harley (, Stockton Maxwell (, and Jim Speer (

The 2018 WorldDendro meeting will be held in Thimphu, Bhutan!  Please check back as more information becomes available, and we look forward to seeing our tree-ring colleagues from around the world in Thimphu the summer of 2018! 

For questions or comments about the website, contact Peter M. Brown (pmb [at] The Tree-Ring Society is a 501(c)3 non-profit association.  

Address membership questions to Lori Wilson (trslori [at] gmail dot com)

Last update:  September 2016   © Tree-Ring Society.  All rights reserved.

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