Published March 10, 2025 | Version 1.0.0
Dataset Open

Global plant trait maps based on crowdsourced biodiversity monitoring and Earth observation - 1 km - All PFTs

  • 1. ROR icon University of Freiburg
  • 2. Max Planck Institute for Biogeochemistry
  • 3. ROR icon German Centre for Integrative Biodiversity Research
  • 4. ROR icon Martin Luther University Halle-Wittenberg
  • 5. Alma Mater Studiorum - University of Bologna
  • 6. ROR icon Czech University of Life Sciences Prague
  • 7. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
  • 8. Universitat de Valencia
  • 9. ROR icon Consejo Nacional de Investigaciones Científicas y Técnicas
  • 10. ROR icon Nalanda University
  • 11. ROR icon University of Zurich
  • 12. University of Göttingen
  • 13. Palmengarten und Botanischer Garten
  • 14. ROR icon Lakehead University
  • 15. ROR icon Czech Academy of Sciences
  • 16. ROR icon University of South Bohemia in České Budějovice
  • 17. ROR icon Jagiellonian University
  • 18. ROR icon Universidad de la República
  • 19. ROR icon Lund University
  • 20. ROR icon Sapienza University of Rome
  • 21. Centre for Research and Conservation, Royal Zoological Society of Antwerp, Antwerpen, Belgium
  • 22. ROR icon Universidade Regional de Blumenau
  • 23. Centro de Investigación en Biodiversidad y Cambio Global (CIBC-UAM)
  • 24. Universidad Autónoma de Madrid
  • 25. ROR icon Masaryk University
  • 26. ROR icon Czech Academy of Sciences, Institute of Botany
  • 27. Zurich University of Applied Sciences (ZHAW)
  • 28. ROR icon Wroclaw University of Environmental and Life Sciences
  • 29. Polish Academy of Sciences
  • 30. Institute of Botany of the CAS, v. v. i.
  • 31. ROR icon Texas A&M University
  • 32. ROR icon King Abdullah University of Science and Technology
  • 33. Himalayan Forest Research Institute
  • 34. Faculty of Geotechnical Engineering, University of Zagreb
  • 35. ROR icon University of Bologna
  • 36. Wageningen University & Research
  • 37. Faculty of Science, Tanta University
  • 38. ROR icon Universidade Federal do Paraná
  • 39. Manaaki Whenua - Landcare Research
  • 40. ROR icon King Saud University

Description

This dataset consists of 31 plant functional trait maps at 1 km resolution with global extent. Plant functional traits are predicted as community-weighted means based on a synthesis of crowdsourced biodiversity data (GBIF species observations, sPlot vegetation surveys, and in situ trait measurements from the TRY trait database) modeled as a function of Earth observation data, including surface reflectance, climatic variables, soil properties, canopy height, and vegetation optical depth.

This version of the maps includes traits sourced from all available plant functional types (PFT). PFT-specific maps are in progress and will be available in the future.

Note: In addition to using the coefficient of variation and area of applicability layers of the maps, we encourage all who wish to use these maps to take particular note of the model performance for the traits of interest, which can be found both in the raster metadata as well as in Table A.1. of the manuscript. The model performance varies significantly across the traits, and so care should be used.

GeoTIFF multilayer raster description

Each GeoTIFF is in Equal Area Scalable Earth projection (EPSG:6933). In addition to the trait predictions, two quality bands are provided. Model performance metrics are also included in the raster metadata.

Band number Band name Description
1 <trait name> The predicted CWM trait values.
2 Coefficient of variation An indicator of model uncertainty derived by comparing the predictions made during model cross-validation.
3 Area of applicability An indicator of model reliability. The area of applicability indicates regions where predictor data used for prediction differs significantly from predictor values seen during model training (see Meyer and Pebesma, 2021).

Trait table

Trait TRY trait name TRY ID Unit
Conduit element length Wood vessel element length; stem conduit (vessel and tracheids) element length 282 µm
Dispersal unit length Dispersal unit length 237 mm
LDMC Leaf dry mass per leaf fresh mass (leaf dry matter content, LDMC) 47 g g-1
Leaf area Leaf area (in case of compound leaves: leaflet, undefined if petiole is in- or excluded) 3113 mm2
Leaf C Leaf carbon (C) content per leaf dry mass 13 mg g-1
Leaf C/N ratio Leaf carbon/nitrogen (C/N) ratio 146 g g-1
Leaf delta 15N Leaf nitrogen (N) isotope signature (delta 15N) 78 ppm
Leaf dry mass Leaf dry mass (single leaf) 55 g
Leaf fresh mass Leaf fresh mass 163 g
Leaf length Leaf length 144 mm
Leaf N (area) Leaf nitrogen (N) content per leaf area 50 g m-2
Leaf N (mass) Leaf nitrogen (N) content per leaf dry mass 14 mg g-1
Leaf P Leaf phosphorus (P) content per leaf dry mass 15 mg g-1
Leaf thickness Leaf thickness 46 mm
Leaf water content Leaf water content per leaf dry mass (not saturated) 3120 g g-1
Leaf width Leaf width 145 mm
Plant height Plant height (vegetative) 3106 m
Rooting depth Root rooting depth 6 m
Seed germination rate Seed germination rate (germination efficiency) 95 days
Seed length Seed length 27 mm
Seed mass Seed dry mass 26 mg
Seed number Seed number per reproduction unit 138 -
SLA Leaf area per leaf dry mass (specific leaf area, SLA or 1/LMA): undefined if petiole is in- or excluded) 3117 m2 kg-1
SRL Root length per root dry mass (specific root length, SRL) 1080 cm g-1
SRL (fine) Fine root length per fine root dry mass (specific fine root length, SRL) 614 cm g-1
SSD Stem specific density (SSD) or wood density (stem dry mass per stem fresh volume) 4 g cm-3
Stem conduit density Stem conduit density (vessels and tracheids) 169 mm-2
Stem conduit diameter Stem conduit diameter (vessels, tracheids) 281 µm
Stem diameter Stem diameter 21 m
Wood fiber lengths Wood fiber lengths 289 µm
Wood ray density Wood rays per millimetre (wood ray density) 297 mm-1

Crowsourced biodiversity data:

These maps have been created in the framework of the PANOPS project. More information on this project is available at:

  • https://uni-freiburg.de/enr-geosense/research/panops/
  • https://gepris-extern.dfg.de/gepris/projekt/504978936?language=en

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Additional details

Funding

Deutsche Forschungsgemeinschaft
PANOPS – Erfassung der globalen funktionellen Biodiversität durch Citizen Science 504978936

Dates

Created
2025-03-10