Mn Section

OUR FOCUS

Since the 1980s, a primary focus of research at CTRS has been fire history. Using dendrochronological methods to date fire scars (wounds) on trees, we can determine the exact year, and often the season, of past fire events. Our fire history reconstructions typically can span 300 to 600+ years and describe the occurrence of fire at a particular location on the landscape. These records inform fire management of landscapes and, through modeling, fire regime variability across the North American continent.

THE DATA

CTRS has fire history data from over 160 sites in North America, primarily from U.S. states east of the Rocky Mountains and extending into southern Canada. These studies provide characteristics of historical fire regimes at a site (such as fire frequency, severity, size, and seasonality) and also allow us to study the controls on fire occurrences such as topography, climate, and ignition sources. One of the most important results of our fire history research has been the widespread acknowledgement of fire as an historically important ecological disturbance agent in the eastern U.S.– essential information for those tasked with management, conservation, and restoration of fire-dependent natural communities.

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Old dead trees with fire scars record fire events spanning hundreds of years into the past
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Fire history study site locations (updated: 1/1/22)

RESEARCH HIGHLIGHTS

Using fire history to inform management in fire-adapted forest types

Linking widespread changes in historical fire regimes to the spread of Euro-American settlement (wave of fire)

Documenting extremely frequent fire in pre-settlement longleaf pine forests

Development of a Topographic Roughness Index for estimating historical fire frequency based on land surface roughness and human population density

Development of the PC2FM model for predicting historical fire frequency based on the physical chemistry of temperature, precipitation, and fuels

Fire scars reveal source of New England's 1780 Dark Day

2007 | McMurry, E.R., M.C. Stambaugh, R.P. Guyette, and D.C. Dey | International Journal of Wildland Fire 16(3): 266-270

Pre-Columbian red pine (Pinus resinosa) fire regimes of north-central Pennsylvania, USA

2022 | Marschall, J.M., M.C. Stambaugh, E.R. Abadir, D.C. Dey, P.H. Brose, S.L. Bearer, and B.J. Jones | Fire Ecology 18, 11

Working toward a fire-scar network for the Cumberland Plateau—Fire history results from Bridgestone Nature Reserve at Chestnut Mountain, Tennessee

2022 | Abadir, E., J.M. Marschall, and M.C. Stambaugh | Journal of the Torrey Botanical Society 149:159-165