calc_variables_tree_level.RdThis function calculates additional variables based on measurements, such as
tree_number: the number of shoots in the tree (= 1 for an individual tree; >= 1 when coppice)
individual: true for individual tree or coppice, false if record is a secondary shoot
calc_height_m: calculated height based on `dbh_mm` and a species specific diameter-height model
basal_area_m2
vol_bole_m3: calculated based on `dbh_mm`, `calc_height_m` and species specific tariffs
vol_crown_m3: calculated based on `dbh_mm` and species specific tariffs
vol_tot_m3: sum of `vol_bole_m3` and `vol_crowwn_m3`
dbh_mm (based on average for coppice trees)
decaystage (based on average for coppice trees)
basal_area_alive_m2_ha
basal_area_dead_m2_ha
vol_alive_m3_ha
vol_dead_standing_m3_ha
vol_bole_alive_m3_ha
vol_bole_dead_m3_ha
calc_variables_tree_level(data_dendro, data_stems_calc)dataframe on tree measures with variables plot_id, plottype, tree_measure_id, date_dendro, dbh_mm, height_m, species, alive_dead, decaystage, period, OldID, year, subcircle, plotarea_ha,... (output of function load_data_dendrometry())
dataframe on stem level measurements with variables plot_id, plottype, tree_measure_id, date_dendro, dbh_mm, height_m, species, alive_dead, decaystage, period, year, subcircle, plotarea_ha,... (output of function calc_variables_stem_level())
Dataframe with ...
if (FALSE) {
#change path before running
library(forrescalc)
data_dendro <-
load_data_dendrometry("C:/MDB_BOSRES_selectieEls/FieldMapData_MDB_BOSRES_selectieEls.accdb")
data_shoots <-
load_data_shoots("C:/MDB_BOSRES_selectieEls/FieldMapData_MDB_BOSRES_selectieEls.accdb")
data_stems <- compose_stem_data(data_dendro, data_shoots)
height_model <- load_height_models("C:/bosreservaten/Hoogtemodellen/")
data_stems_calc <- calc_variables_stem_level(data_stems, height_model)
calc_variables_tree_level(data_dendro, data_stems_calc)
}