df_volume_parameters {MLFS} | R Documentation |
Volume functions can be specified for each species and plot separately, also limited to specific DBH interval. The factor variables (vol_factor, h_factor and DBH_factor) are used to control the input and output units.
df_volume_parameters
A data frame with 6 rows and 14 variables:
species name as used in data_NFI. The category REST is used for all species without specific equation
equation for selected volume function
will be multiplied with the volume
will be multiplied with tree height
will be divided with tree DBH
lower interval threshold for considered trees
upper interval threshold for considered trees
parameter a for volume equation
parameter b for volume equation
parameter c for volume equation
parameter d for volume equation
parameter e for volume equation
parameter f for volume equation
parameter g for volume equation