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Stem maps of eight 1 ha forest plots distributed around Ann Arbor, MI and around the University of Michigan Biological Station (UMBS)

In this project we established a network of forest inventory plots to gather the data needed to forecast future forest performance under global change. Data collected from forest inventory plots, i.e., size and location of individual trees from all ages and species, have been shown to be particularly useful to link tree species demographic rates (survival, growth, age at maturity, fecundity) with community characteristics (assemblages and species turnovers), and are also widely used to estimate biomass removal (logging) and biomass production (carbon sequestration).
We established forest plots within the University of Michigan properties at three general locations in Ann Arbor region of SE Michigan and University of Michigan Biological Station (UMBS), northern Michigan lower peninsula. We established 1 ha (100 x 100m) plots in each of the selected forest stands, four at each location. At each forest plot we set up a 10x10 m grid marked by pvc poles at each intersection delimiting 100 m2 quadrats which were numbered to facilitate the tree census. Elevation at each node of the grid was recorded to generate high-resolution topographic maps of the plots. We used surveying and GPS equipment. In each hectare plot we tagged (with unique numbered tags), identified and measured tree diameter at breast height (dbh, 1.37 m) using tapes or calipers. all trees with at least a dbh of 1 cm were included. Tags were placed at the point-of-measured (POM, 1.37 m) for consistent measurements in further censuses, for small trees POM was marked with tree paint. Trees with several stems at 1.37 m height were marked accordingly and measured. Location in the plot of each tree was recorded.
Release Date
Dataset DOI
Spatial / Geographical Coverage Area
POLYGON ((-87.031858116388 41.742930484372, -87.031858116388 46.281301575727, -82.214144021273 46.281301575727, -82.214144021273 41.742930484372))
Temporal Coverage
Thursday, June 1, 2017 - 00:00 to Tuesday, July 31, 2018 - 00:00
Ines Ibanez
Contact Name
UMBS Data Manager
Contact Email
Public Access Level
Publication Date: 
Friday, May 14, 2021