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Data Extent

Overstory tree and regeneration data from the "Silvicultural Effects on Composition, Structure, and Growth" study at Penobscot Experimental Forest

This data publication contains the baseline overstory tree measurements, regeneration data, and permanent sample plot location information collected, from 1952 to present, under the study plan: FS-NRS-07-08-01 "Study Plan: Silvicultural effects on composition and structure of northern conifers in the Acadian Forest Region: Revision of the Compartment Management Study on the Penobscot Experimental Forest" (available via the data download).

Data are available in five data sets:
1. Overstory tree measurement data include permanent sample plot locations and tree measurement data such as: species, status code (e.g. dead or alive), and diameter at breast height.
2. Spatial location data provide location of a subsample of individual trees in the study.
3. Height and crown measurement data include tree height, height to crown base, along with crown radius in 4 cardinal directions for a subsample of trees.
4. Regeneration data include tree species, seedling presence, and count of trees by height class.
5. Permanent plot location data include the geospatial coordinates for permanent sample plots.

Release Date
Spatial / Geographical Coverage Area
POLYGON ((-68.6443 44.8726, -68.5862 44.8726, -68.5862 44.8269, -68.6443 44.8269))
Spatial / Geographical Coverage Location
The 4000 acre Penobscot Experimental Forest (PEF) is located in the towns of Bradley and Eddington, Maine. The silvicultural treatments where the majority of the research is taking place were installed on approximately 420 acres located in the northern ha
USDA Forest Service, Northern Research Station
Temporal Coverage
January 1, 1952 to December 31, 2012
Contact Name
Kenefic, Laura
Contact Email
Public Access Level
Program Code
005:059 - Department of Agriculture - Management Activities
Bureau Code
005:96 - Forest Service
Harvested from Forest Service
Harvest Source TitleForest Service
Harvest Source URIhttps://www.fs.usda.gov/rds/rdaoaipmh/o
Last Harvest PerformedSat, 01/18/2020 - 15:18

Metadata Source

U.S. Forest Service