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Fire Regime - Report

Fire regimes of coastal sage scrub communities

Written
April, 2026
Fire Regime Type
Report

U.S. Department of Agriculture, Forest Service, Missoula Fire Sciences Laboratory. 2026. Fire regimes of coastal sage scrub communities. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Missoula Fire Sciences Laboratory (Producer). Available: https://research.fs.usda.gov/feis/fire-regimes/coastal-sage-scrub

A complete Fire Regime Synthesis for coastal sage scrub communities has not yet been published in the Fire Effects Information System. However, LANDFIRE succession modeling of coastal sage scrub Biophysical Settings (BpS) provides estimates of fire regime characteristics (see LANDFIRE Biophysical Settings section). Figure 1 shows where these BpSs occur.

A map showing the distribution of coastal sage scrub communities in California and Oregon.
Photo Credit
Map based on the LANDFIRE (2020) BpS data layer [1].

Figure 1—Land cover distribution of coastal sage scrub Biophysical Settings (BpS).

2020 LANDFIRE Biophysical Settings — Historical Fire Regime Characteristics
Biophysical SettingMean Fire Interval (years)Fire Severity Percent (%)
CodeFire Regime GroupLowMixedReplacementAllLowMixedReplacement
Series 11280 - Northern California Coastal Scrub
11280_2_3_4IV-B11011000100
Series 10920 - Southern California Coastal Scrub
10920_4IV-B15015000100
Summary
Minimum11011000100
Maximum15015000100
Mean13013000100
Median13013000100
Percentage of fires in 3 fire severity classes, derived from LANDFIRE succession modeling. Replacement-severity fires cause >75% kill or top-kill of the upper canopy layer; mixed-severity fires cause 26%-75%; low-severity fires cause <26%.
LANDFIRE. 2020. Biophysical settings models and descriptions, [Online]. Washington, DC: U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA: The Nature Conservancy, (Producers). Available: https://www.landfirereview.org/search.php [96496]

1. LANDFIRE. 2020. Biophysical settings layer, CONUS (LANDFIRE 2.2.0). In: LANDFIRE download data mosaic products, [Online]. U.S. Department of the Interior, Geological Survey; U.S. Department of Agriculture (Producer). Available: https://www.landfire.gov/version_download.php [2023, June 20]. [98050]

2. LANDFIRE. 2020. Biophysical settings models and descriptions, [Online]. Washington, DC: U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA: The Nature Conservancy, (Producers). Available: http://www.landfirereview.org/search.php [2022, February 2]. [96496]

Last updated April 20, 2026