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Tallo: A global tree allometry and crown architecture database.

Tommaso Jucker1, Fabian Jörg Fischer1, Jérôme Chave2,3

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|June 15, 2022
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Summary
This summary is machine-generated.

The Tallo database provides 498,838 tree measurements for ecological research. This resource aids studies on forest structure, carbon cycles, and remote sensing, overcoming data accessibility challenges for global tree allometries.

Keywords:
allometric scalingcrown radiusforest biomass stocksforest ecologyremote sensingstem diametertree height

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Area of Science:

  • Ecology
  • Forest Science
  • Remote Sensing

Background:

  • Ecological research relies on tree size and shape data (stem diameter, height, crown size).
  • Data accessibility is limited for certain regions and tree species, hindering progress.
  • Existing data gaps pose challenges for forest structure, dynamics, and carbon stock estimations.

Purpose of the Study:

  • To develop and present the Tallo database, a comprehensive collection of individual tree measurements.
  • To provide a publicly accessible resource for ecological research, overcoming data limitations.
  • To demonstrate the database's utility through case studies in ecological theory and application.

Main Methods:

  • Compiled 498,838 georeferenced and taxonomically standardized tree records.
  • Included measurements of stem diameter, height, and/or crown radius from 61,856 global sites.
  • Ensured taxonomic standardization, with 88% of trees identified to species.

Main Results:

  • The Tallo database contains data for 5163 species across 1453 genera and 187 families.
  • Data spans all major global biomes, offering broad ecological applicability.
  • Public archiving under CC-BY 4.0 license ensures accessibility.

Conclusions:

  • The Tallo database is a key resource for ecologists, remote sensing researchers, and modelers.
  • It facilitates research on metabolic scaling theory, allometric plasticity, and maximum tree height.
  • The database supports a better understanding of trees' role in the terrestrial carbon cycle.