Cited by 640Fire effects on ecosystemsForest Management and PolicyRangeland and Wildlife Management

Changing wildfire, changing forests: the effects of climate change on fire regimes and vegetation in the Pacific Northwest, USA

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Halofsky, Jessica E., Peterson, David L., Harvey, Brian J.·2020·Fire Ecology

Abstract

Background: Wildfires in the Pacific Northwest (Washington, Oregon, Idaho, and western Montana, USA) have been immense in recent years, capturing the attention of resource managers, fire scientists, and the general public. This paper synthesizes understanding of the potential effects of changing climate and fire regimes on Pacific Northwest forests, including effects on disturbance and stress interactions, forest structure and composition, and post-fire ecological processes. We frame this information in a risk assessment context, and conclude with management implications and future research needs. Results: Large and severe fires in the Pacific Northwest are associated with warm and dry conditions, and such conditions will likely occur with increasing frequency in a warming climate. According to projections based on historical records, current trends, and simulation modeling, protracted warmer and drier conditions will drive lower fuel moisture and longer fire seasons in the future, likely increasing the frequency and extent of fires compared to the twentieth century. Interactions between fire and other disturbances, such as drought and insect outbreaks, are likely to be the primary drivers of ecosystem change in a warming climate. Reburns are also likely to occur more frequently with warming and drought, with potential effects on tree regeneration and species composition. Hotter, drier sites may be particularly at risk for regeneration failures. Conclusion: Resource managers will likely be unable to affect the total area burned by fire, as this trend is driven strongly by climate. However, fuel treatments, when implemented in a spatially strategic manner, can help to decrease fire intensity and severity and improve forest resilience to fire, insects, and drought. Where fuel treatments are less effective (wetter, high-elevation, and coastal forests), managers may consider implementing fuel breaks around high-value resources. When and where post-fire planting is an option, planting different genetic stock than has been used in the past may increase seedling survival. Planting seedlings on cooler, wetter microsites may also help to increase survival. In the driest topographic locations, managers may need to consider where they will try to forestall change and where they will allow conversions to vegetation other than what is currently dominant.

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  • Changes in fire regimes can contribute to a shift in vegetation composition, as more frequent fires, especially those coinciding with drought or insect outbreaks, suppress seedling regeneration and push closed forests toward more open forest-steppe systems.

    “Changes in fire regimes can also contribute to a shift in vegetation composition, as more frequent fires, especially those coinciding with drought or insect outbreaks, suppress seedling regeneration and push, for example, closed forests toward more open forest-steppe systems (77,78).”

    From Restoring Degraded Lands (2021) · cites this paper as [77]

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Research works printed but not linked: 15

  1. Brubaker, L.B. 1988. Vegetation history and anticipating future vegetation change. In Ecosystem management for parks and wilderness, ed. J.K. Agee and D.R. Johnson, 41-61. Seattle, Washington, USA: University of Washington Press.
  2. Carroll, A.L., S.W. Taylor, J. Régnière, and L. Safranyik. 2004. Effects of climate and climate change on the mountain pine beetle. In Challenges and solutions: proceedings of the mountain pine beetle symposium. Canadian Forest Service Information Report BC-X-39, ed. · DOI
  3. Davis, C.M. 2018. Effects of climate change on cultural resources in the Northern Rockies region. Chapter 12. In Climate change vulnerability and adaptation in the Northern Rocky Mountains [Part ]. USDA Forest Service General Technical Report RMRS-GTR-374, ed. J.E. Halofsky, D.L. Peterson, S.K. Dante-Wood, L. Hoang, J.J. Ho, and L.A. Joyce, 462-468. Fort Collins, Colorado, USA: USDA Forest Service, Rocky Mountain Research Station.
  4. Furniss, M.J., N.J. Little, and D.L. Peterson. 2018. Effects of climate change on infrastructure. Chapter 11. In Climate change vulnerability and adaptation in the Intermountain Region [Part 2]. USDA Forest Service General Technical Report RMRS-GTR-375, ed. J.E. Halofsky, D.L. Peterson, J.J. Ho, N. Little, and L.A. Joyce, 339-362. Fort Collins, Colorado, USA: USDA Forest Service, Rocky Mountain Research Station.
  5. Goheen, D.J., and E.M. Hansen. 1993. Effects of pathogens and bark beetles on forests. In Beetle-pathogen interactions in conifer forests, ed. T.D. Schowalter and G.M. Filip, 175-196. San Diego, California, USA: Academic Press.
  6. Hand, M.S., D.L. Peterson, B.P. Blanchard, D.C. Benson, M.J. Crotteau, and L.K. Cerveny. 2019. Effects of climate change on recreation. In Climate change vulnerability and adaptation in south central Oregon. USDA Forest Service General Technical Report PNW-GTR-974, ed. J.E. Halofsky, D.L. Peterson, and J.J. Ho, 363-402. Portland, Oregon, USA: USDA Forest Service, Pacific Northwest Research Station. · DOI
  7. Keeley, J.E., G. Ne'eman, and C.J. Fotheringham. 1999. Immaturity risk in a fire- dependent pine. Journal of Mediterranean Ecology 1: 41-48.
  8. F.H. Wagner, 98-109. Salt Lake City, Utah, USA: University of Utah Press.
  9. Mantua, N.J., S.R. Hare, Y. Zhang, J.M. Wallace, and R.C. Francis. 1997. A Pacific interdecadal climate oscillation with impacts on salmon production. Bulletin of the American Meteorological Society 78: 1069-1079 https://doi.org/10.1175/ 1520-0477(1997)078%3C1069:APICOW%3E2.0.CO;2. · DOI
  10. McKenzie, D., D.L. Peterson, and J.S. Littell. 2009. Global warming and stress complexes in forests of western North America. In Wildland fires and air pollution, ed. A. Bytnerowicz, M.J. Arbaugh, A.R. Riebau, and C. Andersen, 317-337. The Hague, The Netherlands: Elsevier Publishers https://doi.org/10. 1016/S1474-8177(08)00015-6. · DOI
  11. Minore, D., and R.J. Laacke. 1992. Natural regeneration. In Reforestation practices in southwestern Oregon and northern California, ed. S.D. Hobbs, S.D. Tesch, P.W. Owston, R.E. Stewart, J.C. Tappeiner, and G.E. Wells, 258-283. Corvallis, Oregon, USA: Oregon State University Press.
  12. M.M. Dalton, P.W. Mote, and A. Snover, 25-40. Washington, D.C., USA: Island Press.
  13. Rowe, J.S. 1983. Concepts of fire effects on plant individuals and species. In The role of fire in northern circumpolar ecosystems, ed. R.W. Wein and D.A. Maclean, 135-154. New York, New York, USA: Wiley.
  14. Singleton, P.H., M. Case, K. Keown, A. Markus, K. Mellen-McLean, S. Mohren, and L. Turner. 2019. Climate change, wildlife, and wildlife habitats in south central Oregon. In Climate change vulnerability and adaptation in south central Oregon. USDA Forest Service General Technical Report PNW-GTR-974, ed. · DOI · Paper page
  15. Whitlock, C. 1992. Vegetational and climatic history of the Pacific Northwest during the last 20,000 years: implications for understanding present-day biodiversity. Northwest Environmental Journal 8: 5-28.

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Authors
Halofsky, J. E., Peterson, D. L., & Harvey, B. J.
Affiliations
  • US Forest Service (US)
  • University of Washington (US)
Corresponding author
Halofsky, Jessica E.
Venue
Fire Ecology
Published
2020-01-27
Volume
16
Issue
1
ISSN
1933-9747 (ISSN-L)
OpenAlex
W3000989483
Cited by
640
References
235
Citations by year
2026: 74 · 2025: 142 · 2024: 141 · 2023: 121 · 2022: 91 · 2021: 62 · 2020: 8
FWCI
26.23
Type
journal article
Language
en
Open access
Locations
Fire Ecology (publishedVersion, cc-by)
Funders
Northwest Climate Adaptation Science Center (G17AS00114)
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Fire effects on ecosystems
  • Physical Sciences › Environmental Science › Global and Planetary Change › Forest Management and Policy
  • Physical Sciences › Environmental Science › Ecology › Rangeland and Wildlife Management
Keywords
climate change, forest fires, fire regimes, Pacific Northwest forests, insect outbreaks, fuel moisture content, fire season length, fire severity, fuel treatment, firebreaks, post-fire regeneration, seedling survival, forest resilience, forest composition, vegetation change, fire risk assessment

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