Fire regimes of Oregon white oak communities
U.S. Department of Agriculture, Forest Service, Missoula Fire Sciences Laboratory. 2026. Fire regimes of Oregon white oak 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/oregon-white-oak
A complete Fire Regime Synthesis for Oregon white oak communities has not yet been published in the Fire Effects Information System. However, LANDFIRE succession modeling of Oregon white oak Biophysical Settings (BpS) provides estimates of fire regime characteristics (see LANDFIRE Biophysical Settings section). Figure 1 shows where these BpSs occur.
Figure 1—Land cover distribution of Oregon white oak Biophysical Settings (BpS).
| Biophysical Setting | Mean Fire Interval (years) | Fire Severity Percent (%) | ||||||
|---|---|---|---|---|---|---|---|---|
| Code | Fire Regime Group | Low | Mixed | Replacement | All | Low | Mixed | Replacement |
| Series 11200 - Willamette Valley Upland Prairie and Savanna | ||||||||
| 11200_1_2_7 | I-B | 13 | 50 | 288 | 10 | 77 | 19 | 4 |
| Series 10080 - North Pacific Oak Woodland | ||||||||
| 10080_1_2_3_7 | I-B | 14 | 37 | 293 | 10 | 71 | 26 | 3 |
| Series 10290 - Mediterranean California Mixed Oak Woodland | ||||||||
| 10290_2_3_4_5_6_7_12 | I-B | 11 | 33 | 285 | 8 | 72 | 25 | 3 |
| Series 10600 - East Cascades Oak-Ponderosa Pine Forest and Woodland | ||||||||
| 10600_1_2_7 | I-C | 31 | 644 | 383 | 28 | 89 | 4 | 7 |
| Summary | ||||||||
| Minimum | 11 | 33 | 285 | 8 | 71 | 4 | 3 | |
| Maximum | 31 | 644 | 383 | 28 | 89 | 26 | 7 | |
| Mean | 17 | 191 | 312 | 14 | 77 | 19 | 4 | |
| Median | 14 | 44 | 291 | 10 | 75 | 22 | 4 | |
| 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]