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Project ID: 04-2-1-14

Year: 2004

Date Started: 08/31/2004

Date Completed: 07/01/2007

Title: Effects of Disturbance History, Landscape Pattern, and Weather on Wildfire Severity in Southwestern Oregon: Implications for Management of a Fire-Prone Landscape

Project Proposal Abstract: Many of the lessons from the large fires of 1987 and 2002 in southwestern Oregon remain hidden in unanalyzed data. As Forest Service and BLM managers design and implement responses to these fires, they need information about the relationship of fire severity to multiple factors including management practices, fire history, fuel, topography and weather. The project has three major objectives: 1) Determine how fire severity in stands is influenced by history of management actions and wildfire; 2) Evaluate the relative contribution of vegetation structure, topography, landscape pattern, and weather to variation in the fire severity and 3) Characterize the spatial pattern and spatial correlation of vegetation changes resulting from the fire. We will conduct an analysis of fire severity using pre- and post-fire aerial photography, a managed stand data base, stand exams, FIA plots and other GIS layers. Fire severity will be measured in terms of damage to tree cover. We will use an existing vegetation change analysis conducted with TM imagery to characterize general spatial patterns of fire severity. Logistic regression and spatial statistics will be used to test hypotheses about the relative importance of different factors in explaining the variation in fire severity. Staff from the BLM and Forest Service units will cooperate on the project and the information will be applied in planning models and practices that are designed to reduce risk to firefighters, communities and forest resources from future high intensity fire.

Principal Investigator: Thomas A. Spies

Agency/Organization: Forest Service

Branch or Dept: PNW-EPF-Ecological Process & Function-Corvallis

Other Project Collaborators




Branch or Dept

Co-Principal Investigator

David Azuma

Forest Service

PNW-Forestry Sciences Lab-Portland

Federal Cooperator

Thomas A. Spies

Forest Service

PNW-EPF-Ecological Process & Function-Corvallis

Project Locations

Fire Science Exchange Network



There are no project locations identified for this project.

Project Deliverables

Final Report view or print

("Results presented in JFSP Final Reports may not have been peer-reviewed and should be interpreted as tentative until published in a peer-reviewed source.")

  ID Type Title
view or print   1445 Government Publication Reburn Severity in Managed and Unmanaged Vegetation in a Large Wildfire
view or print   2532 Journal Article Landscape Ecology
    3213 Poster 2002 Biscuit Severity
    3214 Invited Paper/Presentation Analysis of the Biscuit Fire Severity Mosaic in a Recently Burned and Logged Landscape
    3215 Invited Paper/Presentation Did the Severity Mosaic Left by the 1987 Silver Fire Influence the Biscuit Fire
    3216 Poster Vegetation Community Structure Before and After the 2002 Biscuit Fire in Southwest Oregon
    6902 Conference/Symposia/Workshop Wildfire Severity on a Recently Burned and Managed Landscape
    5387 Poster Assessing the Influence of Multiple Factors on Biscuit Fire Severity

Supporting Documents

The following supporting documents are available for this project.

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