Download FRED 2.0

Before downloading FRED through the user interface below, you may want to check out tips for using FRED. Also check out our Privacy Policy; FRED respects the privacy of all of our users and we take seriously our responsibility to protect all personal information that we collect.

Please let us know through the contact page if you notice any mistakes in FRED 2.0, and we will be happy to make these corrections in the next release. Our hope is that with help from you, we can make FRED as accurate and useful as possible to the broader ecological and modeling communities.

FRED may be cited using the following Digital Object Identifier (DOI): 

Iversen CM, Powell AS, McCormack ML, Blackwood CB, Freschet GT, Kattge J, Roumet C, Stover DB, Soudzilovskaia NA, Valverde-Barrantes OJ, van Bodegom PM, Violle C. 2018. Fine-Root Ecology Database (FRED): A Global Collection of Root Trait Data with Coincident Site, Vegetation, Edaphic, and Climatic Data, Version 2. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. Access on-line at:

We encourage data users to cite original data sources where possible.

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