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Fire Regime - Report

Fire regimes of southeastern mixed hardwood communities

Written
March, 2026
Fire Regime Type
Report

U.S. Department of Agriculture, Forest Service, Missoula Fire Sciences Laboratory. 2026. Fire regimes of southeastern mixed hardwood 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/southeastern-mixed-hardwoods

A complete Fire Regime Synthesis for southeastern mixed hardwood communities has not yet been published in the Fire Effects Information System. However, LANDFIRE succession modeling of southeastern mixed hardwood 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 southeastern mixed hardwood communities across the southeastern U.S.
Photo Credit
Map based on the LANDFIRE (2020) BpS data layer [1].

Figure 1—Land cover distribution of southeastern mixed hardwood Biophysical Settings (BpS).

2020 LANDFIRE Biophysical Settings — Historical Fire Regime Characteristics
Biophysical SettingMean Fire Interval (years)Fire Severity Percent (%)
CodeFire Regime GroupLowMixedReplacementAllLowMixedReplacement
Series 13160 - Southern Piedmont Mesic Forest
13160_54_57_59_61III-A523485104280128
13160_60III-A523554994180128
Series 13570 - Southern Coastal Plain Mesic Slope Forest
13570_46_47_55_58_99I-C521594023569229
Series 15090 - Mississippi River Alluvial Plain Dry-Mesic Loess Slope Forest
15090_45_47III-A8810647944494110
Series 13250 - East Gulf Coastal Plain Northern Mesic Hardwood Slope Forest
13250_46_47_48III-A521594043669229
Series 13270 - East Gulf Coastal Plain Northern Loess Bluff Forest
13270_45_46_47III-A15235639484552421
Series 13430 - Atlantic Coastal Plain Mesic Hardwood Forest
13430_54_55III-A521593943669229
13430_58_60III-A43382479368398
Series 13220 - Southern Crowley`s Ridge Mesic Loess Slope Forest
13220_45III-A881074834450419
Series 15130 - Lower Mississippi River Flatwoods
15130_45III-A9516239552553213
Series 13290 - East Gulf Coastal Plain Southern Loess Bluff Forest
13290_45_46_99III-A6918921841592219
Summary
Minimum43106218354998
Maximum15238251084834121
Mean7222642345652411
Median521624044169229
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