Cited by 72Fire effects on ecosystemsForest Management and PolicyRangeland and Wildlife Management

Human Influences on Wildfire in Alaska from 1988 through 2005: An Analysis of the Spatial Patterns of Human Impacts

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Calef, M. P., McGuire, A. D., Chapin, F. S.·2008·Earth Interactions

Abstract

Boreal ecosystems in Alaska are responding to climate change in many ways, including changes in the fire regime. While large-scale wildfires are an essential part of the boreal forest ecosystem, humans are changing fire regimes through ignition and suppression. The authors analyzed the impact humans have on fire ignitions and relative area burned with distance into the forest from human access points such as settlements, highways, and major rivers in Alaska from 1988 to 2005. Additionally, a fire prediction model was created to identify drivers for lightning fires in the boreal forest. Human presence increases the number of ignitions near settlements, roads, and rivers and appears to reduce the area burned within 30–40 km of villages and rivers. In contrast to fires near roads and rivers, human presence may somewhat increase the area burned within 30–40 km of highways. The fire prediction model indicated that the probability of fire increases as distance from human settlements increases. In contrast, the model indicated that the probability of fire decreases as distance from roads increases and that the probability of fire in relation to distance from rivers depends on the year of analysis. While the ecological consequences of these human impacts are still unclear, this research shows that human influences on fire regime clearly affect the pattern of fire within 40 km of settlements, which is an area that represents 31% of interior Alaska. Future research should focus on more completely understanding the role of human presence in the suppression of wildfires in interior Alaska.

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  • Geographic variation in regional and continental-scale fire activity in the US is strongly associated with proxies for human-caused changes such as population density, road density, and land-use and development patterns.

    “Geographic variability in regional and continental-scale fire activity in the United States is strongly tied to proxies for these human-caused changes, including population and road density, and different land-use and development patterns (10–15).”

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Research works printed but not linked: 5

  1. DeWilde, L., 2003: Human impacts on the fire regime of Interior Alaska. M.S. thesis, Integrative Graduate Education and Research Traineeship, University of Alaska.
  2. Fleming, M. D., 1997: A statewide vegetation map of Alaska using phenological classification of AVHRR data. Proc. Second Circumpolar Arctic Vegetation Mapping Workshop and the CAVM-North America Workshop, D. A. Walker and A. C. Lillie, Eds., Colorado University, Institute of Arctic and Alpine Research, 25-26.
  3. Huntington, O., and H. Huntington, 2005: "We hate fire": Understanding statements on context. Naalaktuaqtuni Ilitchiruni-Lu: Listening & Learning, Alaska Native Science Commission Newsletter, Vol. 5, 1-2.
  4. --, T. S. Rupp, and D. L. Verbyla, 2006: Fire trends in the Alaskan boreal forest region. Alaska's Changing Boreal Forest, F. S. Chapin III, Ed., Oxford University Press, 285-301.
  5. Murphy, P. J., J. P. Mudd, B. J. Stocks, E. S. Kasischke, D. Barry, M. E. Alexander, and N. H. F. French, 2000: Historical fire records in boreal forest. Fire, Climate Change, and Carbon Cycling in the Boreal Forest, E. S. Kasischke and B. J. Stocks, Eds., Springer, 274-288.

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Authors
Calef, M. P., McGuire, A. D., & Chapin, F. S.
Affiliations
  • State University of New York (US)
  • United States Geological Survey (US)
  • University of Alaska Fairbanks (US)
Venue
Earth Interactions
Published
2008-03-01
Volume
12
Issue
1
Pages
1-17
ISSN
1087-3562 (ISSN-L)
OpenAlex
W2051188584
Cited by
72
References
52
Citations by year
2026: 7 · 2024: 3 · 2023: 3 · 2022: 10 · 2021: 4 · 2020: 2 · 2017: 7 · 2016: 4 · 2015: 6 · 2014: 2 · 2013: 4 · 2012: 3
FWCI
5.11
Type
journal article
Language
en
Open access
Locations
Earth Interactions (publishedVersion)
Funders
National Science Foundation (0328282)
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
forest fires, human influence on fire, fire regimes, fire ignition, fire suppression, boreal forest, lightning fires, fire prediction model, road proximity, distance to river, interior Alaska, climate change

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