Pictures of what the LF program incorporates with the LANDFIRE logo on the left and USFS and DOI on the right
LANDFIRE - multi-partner wildland fire, ecosystem, and wildland fuel mapping project USFS DOI
[Skip to Content]
  Button for Who Are We
Homepage » Vegetation » Biophysical Settings

Biophysical Settings

Data Products:Reference  ∕  Disturbance  ∕  Vegetation  ∕  Fuel  ∕  Fire Regime  ∕  Topographic  ∕  Who are We
     Notifications Alerts

Latest NewsLatest News

Get Data

LANDFIRE's (LF) Biophysical Settings (BPS) represents the vegetation system that may have been dominant on the landscape prior to Euro-American settlement and is based on both the current biophysical environment and an approximation of the historical disturbance regime. LF uses BPS to depict reference conditions of vegetation across landscapes.

Map units are based on NatureServe's Ecological Systems classification and represent the natural plant communities that may have been present during the reference period. Each BPS map unit is matched with a model of vegetation succession. The actual time period for this data set is a composite of both the historical context provided by the fire regime and vegetation dynamics models and the more recent field and geospatial inputs used to create it.

LF 2014 and earlier versions: BPS is unchanged from LF National's BPS except for updates made to water, barren, and snow classes (additions or removal), so that non-vegetated cover types within the BPS product matches LF existing vegetation and fuel products.

LF 2016 Remap and beyond: BPS now includes the following products as attributes of BPS to ensure the linkage of these characteristics to BPS is maintained.

  • Fire Return Interval (FRI)
  • Percent of Low-severity Fire (PRC_SURFAC)
  • Percent of Mixed-severity Fire (PRC_MIXED)
  • Percent of Replacement-severity Fire (PRC_REPLAC)
  • Fire Regime Groups (FRG_NEW)

LF 2016 Remap and beyond includes a 90-kilometer buffer along the 1,500 miles of the eastern and southern borders AK shares with Canada. Then with the LF 2020 update, and future updates, for the Conterminous United States (CONUS) a 90-kilometer buffer into Mexico is also included.

Product availability

Attribute Data Dictionary (LF 2.2.0)zipped file

Comma separated value (CSV) files can be found in the LF Library.

Download Data


BPS example
Northwest region - LF 2016 Remap BPS

Key BPS Attributes
VALUE Unique numerical identifier for each legend category
BPS_CODE  Biophysical Settings (BpS) code used by LANDFIRE
ZONE  National Land Cover Database Map Zone the BpS relates to
BPS_MODEL  Unique BpS model code
GROUPVEG  BpS collapsed into coarse groups
FRI_REPLAC  Average historic replacement fire frequency
FRI_MIXED  Average historic mixed fire frequency
FRI_SURFAC  Average historic surface fire frequency
PRC_REPLAC  Percent of historic fires with replacement severity
PRC_MIXED  Percent of historic fires with mixed severity
PRC_SURFAC  Percent of historic fires with surface severity
FRG_NEW  Modified Fire Regime Group

Users may experience intermittent service Thursday evenings due to routine maintenance.
The LF Map Viewer (DDS) will be down every 3rd Wednesday from 8 am - 10:00 am (CDT) for routine maintenance.
To view and print a PDF you must obtain and install the Acrobat® Reader, available at no charge from Adobe Systems.
*DOI and USGS link and privacy policies apply.
Looking for something: Site Map   /   Search
Page Contact Information: LF Helpdesk