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Individual trees biomass of aboveground carbon

Individual trees biomass of aboveground carbon.csv
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Variables
Site
  • Label:
  • Definition: Three sites in Washtenaw County, Michigan, were selected for field data collection: Scio Woods Preserve, Brauer Preserve, and Creekshead Preserve.
  • Type: Nominal
  • Missing values: None specified
Plot #
  • Label:
  • Definition: For each site, random plot locations were generated and then superimposed on leaf-on NearMap imagery. Plot locations were randomly placed using the Create Random Points tool in ArcGIS Pro. Maps of the field sites were exported as PDFs and uploaded to the Avenza Maps app and used along with a handheld compass and Trimble R1 unit to navigate to plot locations in the field. Each random point was marked as the southwest corner of the plot, and the square plot extended 10 meters True North and 10 meters East.
  • Type: Nominal
  • Missing values: None specified
Tree #
  • Label:
  • Definition: Data collected included tree species, tree stem diameter at breast height (DBH) measured at 4.5 feet above the ground, and relative crown position (understory vs. overstory). Standard DBH measuring protocols were followed according to standards described by West (2015). Over the 69 plots, measurements of a total of 281 live trees with a minimum DBH of 10 c.m. from 23 species. Three out of 33 plots at Scio Woods and three out of 24 plots at Brauer Preserve contained no live trees greater than 10 c.m. in DBH and were excluded from biomass calculations due to concerns that plots containing 0 kg of tree biomass would lead to arbitrary underestimates of biomass.
  • Type: Nominal
  • Missing values: None specified
Biomass
  • Label:
  • Definition: Biomass can be measured by taking measurements of individual tree diameters in the field and applying allometric regression equations based on tree species. It is widely assumed that the carbon content of a tree is 50% of its biomass. Once the biomass is known, carbon content can easily be calculated by multiplying by a factor of 0.5.
  • Type: Nominal
  • Missing values: None specified

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Additional Information

FieldValue
mimetypetext/csv
filesize6.82 KB
resource typefile upload
timestampJun 29, 2021