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Fire regimes of North Pacific montane shrubland communities

Citation:
U.S. Department of Agriculture, Forest Service, Missoula Fire Sciences Laboratory. 2012. Information from LANDFIRE on fire regimes of North Pacific montane shrubland communities. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Missoula Fire Sciences Laboratory (Producer). Available: www.fs.usda.gov/database/feis/fire_regimes/North_Pacific_montane_shrub/all.html [].

A complete Fire Regime Synthesis for North Pacific montane shrubland communities has not been published in the Fire Effects Information System. However, information is available from LANDFIRE succession modeling of Biophysical Settings (BpS). Table 1 summarizes LANDFIRE data on the BpSs in North Pacific montane shrubland communities. Figure 1 shows where they occur. Table A1 lists the BpSs and the results of LANDFIRE succession modeling for each BpS in North Pacific montane shrubland communities.

Table 1—Modeled fire intervals and severities in North Pacific montane shrubland communities [3].
Fire interval¹
Fire severity² (% of fires)
Number of Biophysical Settings (BpSs) in each fire regime group
  Replacement Mixed Low I II III IV V NA³
1,000-9,800 years 83-98 not assigned not assigned 0 0 0 0 6 0
¹Average historical fire interval derived from LANDFIRE succession modeling (labeled "MFRI" in LANDFIRE).
²Percentage 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% [1,2].
³NA (not applicable) refers to BpS models that did not include fire in simulations.

Figure 1—Distribution of North Pacific montane shrubland communities based on the LANDFIRE Biophysical Settings (BpS) data layer [3]. LANDFIRE did not map BpSs 0210830, 0710830, 0210840, or 0710840 in this group due to infrequent occurrences. Mapped BpSs are scattered. Click on the map for a larger image and zoom in for details.

References:

1. Barrett, S.; Havlina, D.; Jones, J.; Hann, W.; Frame, C.; Hamilton, D.; Schon, K.; Demeo, T.; Hutter, L.; Menakis, J. 2010. Interagency fire regime condition class guidebook (FRCC), [Online], (Version 3.0). In: Interagency fire regime condition class website. U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior; The Nature Conservancy (Producers). Available: https://www.frames.gov/files/7313/8388/1679/FRCC_Guidebook_2010_final.pdf [2017, March 1]. [85876]

2. LANDFIRE Rapid Assessment. 2005. Reference condition modeling manual (Version 2.1). Cooperative Agreement 04-CA-11132543-189. Boulder, CO: The Nature Conservancy; U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior. 72 p. On file at: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory, Missoula, MT. [66741]

3. LANDFIRE. 2008. CONUS refresh (LANDFIRE 1.1.0). Biophysical settings layer. In: LANDFIRE data distribution site, [Online]. In: LANDFIRE. U.S. Department of the Interior, Geological Survey (Producer). Available: https://landfire.cr.usgs.gov/viewer/ [2015, October 7]. [89416]
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