Table 3 : Composite fire interval (CFI) data for the pre-settlement era (1775–1849) from fire history sites in the Plumas National Forest, northern Sierra Nevada, California. “-” indicates instances where too few intervals remained after filtering to calculate interval statistics.
From: Fire history and climate influences from forests in the Northern Sierra Nevada, USA
No Filter | 10% Filter | 25% Filter | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Site | Period | Intervals | Mean | Med | Range | Intervals | Mean | Med | Range | Intervals | Mean | Med | Range |
(years) | (years) | (years) | |||||||||||
Antelope Lake Group | |||||||||||||
56-03 | 1775–1849 | 8 | 8.3 | 7.0 | 1–19 | 1 | 7.0 | - | - | 0 | - | - | - |
56-04 | 1775–1849 | 9 | 6.1 | 6.0 | 1–12 | 3 | 18.3 | 17.0 | 16–22 | 2 | 16.5 | 16.5 | 16–17 |
56-08 | 1775–1849 | 4 | 14.8 | 15.0 | 7–22 | 4 | 14.8 | 15.0 | 7–22 | 1 | 22.0 | - | - |
56-10 | 1775–1849 | 6 | 11.2 | 9.5 | 6–22 | 4 | 15.3 | 16.0 | 7–22 | 1 | 41.0 | - | - |
56-12 | 1775–1849 | 8 | 8.8 | 8.5 | 6–14 | 6 | 11.7 | 11.0 | 8–17 | 5 | 14.0 | 14.0 | 8–22 |
East Quincy Group | |||||||||||||
56-02 | 1775–1849 | 11 | 6.4 | 6.0 | 1–17 | 7 | 8.9 | 7.0 | 1–17 | 5 | 10.4 | 7.0 | 4–17 |
Frenchman Lake Group | |||||||||||||
51-01 | 1775–1849 | 9 | 7.7 | 8.0 | 5–10 | 6 | 8.7 | 7.5 | 5–17 | 6 | 8.7 | 7.5 | 5–17 |
51-02 | 1775–1849 | 8 | 8.6 | 8.0 | 5–16 | 0 | - | - | - | 0 | - | - | - |
Portola Valley Group | |||||||||||||
51-25 | 1775–1849 | 9 | 7.1 | 6.0 | 5–11 | 4 | 13.0 | 10.5 | 7–24 | 0 | - | - | - |
51-27 | 1775–1849 | 14 | 5.0 | 5.0 | 1–9 | 10 | 6.1 | 6.0 | 4–8 | 8 | 7.6 | 6.0 | 4–15 |
51-29 | 1775–1849 | 11 | 6.4 | 6.0 | 1–12 | 5 | 12.2 | 6.0 | 4–33 | 0 | - | - | - |