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Initial tree census for the Paint Rock Forest Dynamics Plot, Alabama, USA.

Dawn Lemke1, Luben Dimov2, Bill Finch3

  • 1Department of Natural Resources and Environmental Sciences, Alabama A&M University, Normal, Alabama, USA.

Ecology
|March 15, 2026
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Summary
This summary is machine-generated.

This study presents the first woody stem census from the Paint Rock Forest Dynamics Plot in Alabama. The census provides crucial data on forest composition and structure for ecological research and conservation efforts.

Keywords:
North AmericaPaint Rock Forest Dynamics Plotpermanent forest plottemperate foresttree diametertree spatial coordinates

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Area of Science:

  • Forest Ecology and Dynamics
  • Plant Community Structure
  • Biodiversity Assessment

Background:

  • The Paint Rock Forest Dynamics Plot is a 20-hectare research site located in north Alabama, USA.
  • The plot is situated within a mature mixed deciduous forest on the Cumberland Plateau, characterized by diverse geology and topography.
  • This region experiences a humid subtropical climate, influencing forest composition and water availability.

Purpose of the Study:

  • To conduct an initial woody stem census within the Paint Rock Forest Dynamics Plot.
  • To enhance understanding of forest ecosystem ecology and dynamics.
  • To provide undergraduate students with hands-on research experience and foster interdisciplinary collaboration.

Main Methods:

  • A 20m x 20m grid was established across the 20-hectare plot for systematic inventory.
  • All living woody stems (excluding vines) with a diameter at breast height (DBH) of at least 1 cm were mapped and inventoried.
  • Tree stem definitions included single stems, multiple stems (forked below DBH), and clonal trunks, with precise mapping using laser rangefinders and digital compasses.

Main Results:

  • The census enumerated 29,280 free-standing living stems belonging to 27,418 woody individuals, representing 79 species from 35 families.
  • Canopy stature tree species constituted 74.5% of the total stems, with dominant species including white oak, yellow-poplar, and sugar maple.
  • The data includes three gymnosperm and 46 angiosperm canopy species, alongside 30 mid- or understory tree and shrub species.

Conclusions:

  • The initial woody stem census provides a foundational dataset for long-term forest monitoring and ecological research in the Paint Rock Forest Dynamics Plot.
  • The diverse species composition and stem density highlight the ecological richness of this mature mixed deciduous forest.
  • This dataset is available for non-commercial use, encouraging further research and citation for scientific advancement.