Definitions for raw fuels data

studypointid Unique integer identifier for study point
lfevtgroup LANDFIRE Existing Vegetation Type (EVT) group name assigned to the study point
lfevtgroupcd LANDFIRE Existing Vegetation Type (EVT) group code assigned to the study point
state US state of the study point location
inventoryyear Year the study point was collected
unitname Source-specific unit name of the study point
plotname Source-specific plot name of the study point
fl_tree_mg_p_ha Published total aboveground tree biomass, if provided; otherwise set to the sum of understory, midstory, and overstory loading values
fl_tree_crown_mg_p_ha Total tree crown loading
fl_snag_mg_p_ha Total aboveground biomass of dead trees, all decay classes
fl_os_mg_p_ha Overstory tree crown loading
fl_ms_mg_p_ha Midstory tree crown loading
fl_us_mg_p_ha Understory tree crown loading
fl_tree_entered_mg_p_ha Total tree loading as published
fl_tree_summed_mg_p_ha Total tree loading as generated from summing understory, midstory, and overstory values
fl_cwd_mg_p_ha Published total coarse (>3") downed woody debris, if provided; otherwise the sum of sound and rotten CWD loadings, if provided; otherwise the sum of given 1k-, 10k-, and >10k loadings
fl_cwd_sound_mg_p_ha Sound coarse (>3") downed woody debris loading
fl_cwd_rotten_mg_p_ha Rotten coarse (>3") downed woody debris loading
fl_1khr_mg_p_ha Published 1000-hr time lag (3-9" diameter) loading, if provided; otherwise set to the sum of 1000-hr sound and rotten loadings
fl_1khrs_mg_p_ha Sound downed woody debris 1,000-hr time lag (3-9" diameter) loading
fl_1khrr_mg_p_ha Rotten downed woody debris 1,000-hr time lag (3-9" diameter) loading
fl_10khr_mg_p_ha Published 10k-hr time lag (9-20" diameter) loading, if provided; otherwise set to the sum of 10k-hr sound and rotten loadings
fl_10khrs_mg_p_ha Sound downed woody debris 10,000-hr time lag (9-20" diameter) loading
fl_10khrr_mg_p_ha Rotten downed woody debris 10,000-hr time lag (9-20" diameter) loading
fl_cwd_entered_mg_p_ha Total coarse (>3") downed woody debris loading as published
fl_cwd_summedbypiecesizeclass_mg_p_ha Total coarse (>3") downed woody debris loading generated by summing given 1K, 10K, and >10K loadings
fl_cwd_summedbysr_mg_p_ha Total coarse (>3") downed woody debris loading generated by summing given sound and rotten loadings
fl_1khr_entered_mg_p_ha Downed woody debris 1,000-hr time lag (3-9" diameter) loading as published
fl_1khr_summed_mg_p_ha Downed woody debris 1,000-hr time lag (3-9" diameter) loading generated by summing given sound and rotten loadings
fl_10khr_entered_mg_p_ha Downed woody debris 10,000-hr time lag (9-20" diameter) loading as published
fl_10khr_summed_mg_p_ha Downed woody debris 10,000-hr time lag (9-20" diameter) loading generated by summing given sound and rotten loadings
fl_gt10khr_mg_p_ha Downed woody debris >10,000-hr time lag (>20" diameter) loading generated by summing given sound and rotten loadings (NOTE: there were no instances of lumped >10k-hr loadings)
fl_gt10khrs_mg_p_ha Sound downed woody debris >10,000-hr time lag (>20" diameter) loading
fl_gt10khrr_mg_p_ha Rotten downed woody debris >10,000-hr time lag (>20" diameter) loading
fl_fwd_mg_p_ha Published fine (<=3" diameter) downed woody debris loading, if provided; otherwise set to the sum of given 1-, 10-, and 100-hr loadings
fl_1hr_mg_p_ha Downed woody debris 1-hr time lag (< 0.25" diameter) loading
fl_10hr_mg_p_ha Downed woody debris 10-hr time lag (0.25-1" diameter) loading
fl_100hr_mg_p_ha Downed woody debris 100-hr time lag (1-3" diameter) loading
fl_fwd_summed_mg_p_ha Fine (<=3" diameter) downed woody debris loading generated by summing given 1-, 10-, and 100-hr loadings
fl_fwd_entered_mg_p_ha Fine (<=3" diameter) downed woody debris loading as published
fl_duff_mg_p_ha Duff biomass (combined upper and lower duff layers)
duff_depth_cm Depth of the duff layer (Oe and Oa soil layers) is included because many sources record this instead of loading. A generic bulk density value can be used to estimate biomass from this.
fl_litter_mg_p_ha Litter biomass (Oi soil layer)
litter_depth_cm Depth of the litter layer (Oi soil layer) is included because many sources record this instead of loading. A generic bulk density value can be used to estimate biomass from this.
fl_shrub_mg_p_ha Total aboveground biomass of shrubs
fl_herb_mg_p_ha Total aboveground biomass of herbaceous plants including grasses and other nonwoody plants
herb_percentlive_pct Percent of herbaceous plants that are living
fl_lichen_mg_p_ha Biomass of ground lichens (arboreal lichens not included)
fl_moss_mg_p_ha Biomass of surface fuel cryptogams (arboreal moss not included)
source_id ID referencing the data source from which study point was derived