Fire regimes of Great Basin mixed-conifer communities
U.S. Department of Agriculture, Forest Service, Missoula Fire Sciences Laboratory. 2026. Fire regimes of Great Basin mixed-conifer 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/great-basin-mixed-conifer
A complete Fire Regime Synthesis for Great Basin mixed-conifer communities has not yet been published in the Fire Effects Information System. However, LANDFIRE succession modeling of Great Basin mixed-conifer 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 Great Basin mixed-conifer Biophysical Settings (BpS).
| Biophysical Setting | Mean Fire Interval (years) | Fire Severity Percent (%) | ||||||
|---|---|---|---|---|---|---|---|---|
| Code | Fire Regime Group | Low | Mixed | Replacement | All | Low | Mixed | Replacement |
| Series 10520 - Southern Rocky Mountain Mesic Montane Mixed Conifer Forest and Woodland | ||||||||
| 10520_18 | I-C | 72 | 90 | 186 | 33 | 45 | 37 | 18 |
| 10520_17 | I-C | 72 | 91 | 184 | 33 | 46 | 36 | 18 |
| 10520_16_23_24 | I-C | 74 | 89 | 180 | 33 | 44 | 37 | 19 |
| 10520_13 | III-A | 64 | 191 | 214 | 39 | 61 | 21 | 18 |
| 10520_12 | I-C | 72 | 91 | 186 | 33 | 46 | 36 | 18 |
| Series 10510 - Southern Rocky Mountain Dry-Mesic Montane Mixed Conifer Forest and Woodland | ||||||||
| 10510_18_21 | I-B | 14 | 77 | 90 | 11 | 74 | 14 | 12 |
| 10510_15_16_17_22_23_24_25 | I-B | 14 | 77 | 90 | 11 | 74 | 14 | 12 |
| 10510_6 | I-B | 14 | 76 | 91 | 11 | 74 | 14 | 12 |
| Summary | ||||||||
| Minimum | 14 | 76 | 90 | 11 | 44 | 14 | 12 | |
| Maximum | 74 | 191 | 214 | 39 | 74 | 37 | 19 | |
| Mean | 50 | 98 | 153 | 26 | 58 | 26 | 16 | |
| Median | 68 | 90 | 182 | 33 | 54 | 29 | 18 | |
| 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]