FIA: FIA records aggregated to a equal area grid.
In asgersvenning/bachelor: Bachelor Data And Functions

FIA	R Documentation

FIA records aggregated to a equal area grid.

Description

Species are encoded by FIA species codes, and coordinates are in EPSG:2163 (for details = "sf::st_crs(2163)$proj4string"). Density is species per FIA plot.

Usage

FIA

Format

A tibble with 243 rows and 10 variables:

INVYR: dbl Year of inventory
x: dbl Longitudinal grid cell center.
y: chr Latitudinal grid cell center.
ID: dbl Grid cell ID, can be used to join with asgerbachelor::aggregationGrid.
samples: dbl Number of FIA plots in grid cell at a given inventory year.
SPCD: dbl FIA species code.
density: dbl Number of species per plot in the bounding box. Calculated simply as number of individuals divided by number of plots.