Document


Title

Legacies of Indigenous land use shaped past wildfire regimes in the Basin-Plateau Region, USA
Document Type: Journal Article
Author(s): Vachel A. Carter; Andrea R. Brunelle; Mitchell J. Power; R. Justin DeRose; Matthew F. Bekker; Isaac Hart; Simon C. Brewer; Jerry Spangler; Erick Robinson; Mark B. Abbott; S. Yoshi Maezumi; Brian F. Codding
Publication Year: 2021

Cataloging Information

Keyword(s):
  • anthropogenic drivers
  • archaeology
  • climate change
  • environmental impact
  • environmental studies
  • fire regimes
  • indigenous fire-use
  • indigenous land use
  • paleoclimate
  • Utah
Region(s):
Record Maintained By:
Record Last Modified: May 21, 2021
FRAMES Record Number: 63670

Description

Climatic conditions exert an important influence on wildfire activity in the western United States; however, Indigenous farming activity may have also shaped the local fire regimes for millennia. The Fish Lake Plateau is located on the Great Basin–Colorado Plateau boundary, the only region in western North America where maize farming was adopted then suddenly abandoned. Here we integrate sedimentary archives, tree rings, and archeological data to reconstruct the past 1200 years of fire, climate, and human activity. We identify a period of high fire activity during the apex of prehistoric farming between 900 and 1400 CE, and suggest that farming likely obscured the role of climate on the fire regime through the use of frequent low-severity burning. Climatic conditions again became the dominant driver of wildfire when prehistoric populations abandoned farming around 1400 CE. We conclude that Indigenous populations shaped high-elevation mixed-conifer fire regimes on the Fish Lake Plateau through land-use practices.

Online Link(s):
Citation:
Carter, Vachel A.; Brunelle, Andrea; Power, Mitchell J.; DeRose, R. Justin; Bekker, Matthew F.; Hart, Isaac; Brewer, Simon; Spangler, Jerry; Robinson, Erick; Abbott, Mark; Maezumi, S. Yoshi; Codding, Brian F. 2021. Legacies of Indigenous land use shaped past wildfire regimes in the Basin-Plateau Region, USA. Communications Earth & Environment 2(1):72.