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Fire Regime Product Alerts

Historical Fire Regime and Vegetation Departure


Data Products:Reference  ∕  Disturbance  ∕  Vegetation  ∕  Fuel  ∕  Fire Regime  ∕  Topographic  ∕  Seasonal      Notifications Alerts

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The Historical Fire Frequency and Severity products listed below represent fire regimes prior to European colonization, which are the outputs of locally developed state-and-transition models. Using those historical products as the reference condition, LANDFIRE developed Vegetation Departure products that estimate current vegetation conditions.

Starting with LF 2016 Remap, the Historical Fire Frequency and Severity data are no longer provided as stand-alone products but are now included as attributes to the BPS layer.


Products
Historical Fire Frequency and SeverityVegetation Departure
Fire Regime Groups - characterize the presumed historical fire regimes within landscapes
Fire Return Interval - average period between fires under the presumed historical fire regime
Percent Low-severity Fire - low-severity fires relative to mixed- and replacement-severity fires under the presumed historical fire regime
Percent Mixed-severity Fire -mixed-severity fires relative to low- and replacement-severity fires under the presumed historical fire regime
Percent Replacement-severity Fire - replacement-severity fires relative to low- and mixed-severity fires under the presumed historical fire regime
Vegetation Condition Class - a discrete metric that quantifies the amount that current vegetation has departed from the simulated historical vegetation reference conditions
Vegetation Departure - range from 0 - 100 depicting the amount that current vegetation has departed from simulated historical vegetation reference conditions
Succession Classes - current vegetation conditions with respect to vegetation species composition, cover, and height ranges of successional states occurring within each biophysical setting.
Other
FRCC Historical — Provides historical content regarding the FRCC Program, includes documentation and other resources.

Application

Fire regime products are used:

for landscape assessments

in comparisons of historical to current conditions

to identify landscape management priorities

 

 
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