Those of us focused on measuring belowground processes have dusted off our data, pooled them together into one harmonized database, and freely shared these hard-won observations. Our hope is that they will be used by the broader community of root and rhizosphere ecologists to tackle some of the biggest questions in belowground ecology, and that some of the answers to these questions will be hard-coded into the models that inform our understanding of the world as it is now and as it will be in the future.
The second version of the Fine-Root Ecology Database is available for download! Download the full FRED 2.0 data set, user guidance document, map, and list of data sources here. Prior to downloading the data, please read and follow the Data Use Guidelines, and it's worth checking out some tips for using FRED before you begin your analyses. Also, see here for an updating list of corrections to FRED 2.0.
For more information, check out the 'Project' page, see Iversen et al., 2017 for a paper describing the FRED initiative, and check out an ORNL research highlight on the story behind FRED.
FRED is built on community data and its continued improvement and expansion hinges largely on community interest and engagement. We strongly encourage researchers to directly contribute data. After all…FRED 3.0 is just over the horizon.
Iversen CM, McCormack ML, Powell AS, Blackwood CB, Freschet GT, Kattge J, Roumet C, Stover DB, Soudzilovskaia NA, Valverde-Barrantes OJ, van Bodegom PM, Violle C. 2017. Viewpoints: A global Fine-Root Ecology Database to address belowground challenges in plant ecology. New Phytologist 215: 15-26.
McCormack ML, Guo D, Iversen CM, Chen W, Eissenstat DM, Fernandez CW, Li L, Ma C, Ma Z, Poorter H, Reich PB, Zadworny M, Zanne A. 2017. Viewpoints: Building a better foundation: Improving root-trait measurements to understand and model plant and ecosystem processes. New Phytologist 215: 27-37.
McCormack ML, Powell AS, Iversen CM. 2018. Letter: The Fine-Root Ecology Database version 2 – bigger, better, and free. Eos, in press.
Freschet GT, Valverde-Barrantes OJ, Tucker CM, Craine JM, McCormack ML, Violle C, Fort F, Blackwood CB, Urban-Mead KR, Iversen CM, Bonis A, Comas LH, Cornelissen JHC, Dong M, Guo D, Hobbie SE, Holdaway RJ, Kembel SW, Makita N, Onipchenko VG, Picon-Cochard C, Reich PB, de la Riva EG, Smith SW, Soudzilovskaia NA, Tjoelker MG, Wardle DA, Roumet C. 2017. Climate, soil and plant functional types as drivers of global fine-root trait variation. Journal of Ecology 105: 1182-1196.
McCormack ML, Iversen CM, Eissenstat DM. 2016. Moving forward with fine-root definitions and research. New Phytologist 212: 313.
McCormack ML, Dickie IA, Eissenstat DM, Fahey TJ, Fernandez CW, Guo D, Helmisaari H-S, Hobbie EA, Iversen CM, Jackson RB, Leppalammi-Kujansuu J, Norby RJ, Phillips RP, Pregitzer KS, Pritchard SG, Rewald B, Zadworny M. 2015. Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes (Tansley Review). New Phytologist 207: 505-518.
Norby RJ, Iversen CM. 2017. Introduction to a Virtual Issue on root traits. New Phytologist 215: 5-8.
Warren, JM, Hanson PJ, Iversen CM, Kumar J, Walker AP, Wullschleger SD. 2015. Root structural and functional dynamics in terrestrial biosphere models – Evaluation and recommendations (Tansley Review). New Phytologist 205: 59-78.
Xu Y, Wang D, Iversen CM, Walker A, Warren J. 2017. Building a virtual ecosystem dynamic model for root research. Environmental Modelling & Software 89: 97-105.
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.
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. 2016. Fine-Root Ecology Database (FRED): A Global Collection of Root Trait Data with Coincident Site, Vegetation, Edaphic, and Climatic Data, Version 1. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A.
This research is funded by the Office of Biological and Environmental Research in the U.S. Department of Energy's Office of Science.