1 / 65

Indian Burning Practices and Oregon Coast Range Forest Fires

This study explores the hypothesis that Indian burning practices from the late-15th to mid-19th century influenced subsequent patterns of catastrophic forest fires in the Oregon Coast Range. Historical drawings, photographs, literature reviews, oral traditions, aerial photographs, and historical maps are among the sources of information used.

milaj
Télécharger la présentation

Indian Burning Practices and Oregon Coast Range Forest Fires

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Oregon Coast Range PAC (Province Advisory Council) Corvallis, OR, April 15, 2004 10:30 AM Bob Zybach Forest Fire History & Land Use Ecologist: Five Rivers Land Management Study OSU Forest Sciences Dept./PNW Research Station

  2. Hypothesis Current evidence suggests patterns of late-15th to mid-19th century Indian burning practices had a direct effect on subsequent patterns of Oregon Coast Range catastrophic forest fires that occurred from 1849 to 1951. In particular, Indian fires may have influenced the cause, timing, severity, location, and boundaries of subsequent wildfires.

  3. Sources of Information

  4. Historical Drawings & Photographs

  5. Literature Review

  6. Living Memory and Oral Traditions

  7. Aerial Photographs

  8. Historical Maps

  9. GIS C O N V E R S I O N 1895-96 USGS Coos Bay 30 min Quadrangle Map • Bottomland Prairies • 1868 Coos Fire • 1770 Millicoma Fire • Wagon Roads and Trails

  10. Persistent Vegetation Patterns

  11. Oregon Coast RangeNamed Rivers Elevations

  12. Oregon Coast Range Fuels *Spruce/hemlock *Douglas-fir *Oak grasslands

  13. Coast Range Seasonal Fuel Desiccation, 1961-1991 • Killing Frosts • North (Nov. 3-Mar. 3) • East (Nov. 2-Apr. 14) • West (Nov. 8-Apr. 6) • South (Nov. 10-Apr.5) • Summer Droughts • North (May-Sep.) • East (Apr.-Oct.) • West (May-Sep.) • South (Apr.-Oct.)

  14. Types of Indian Burning Practices

  15. OREGON COAST RANGESeasonal Burning Patterns, ca. 1600-1848

  16. Willamette Valley, Oregon 1845 1885

  17. Soap Creek Valley, Oregon 1914 1989

  18. The Great Fires • Millicoma, ca. 1775 • Yaquina, ca. 1849 • Nestucca, ca. 1853 • Coos, 1868 • Tillamook, 1933

  19. “Indian Trail [from Willamette Valley] to Tidewater” “Alseya Valley” General Land Office survey map, 1856

  20. Alsea Valley North Fork Prairie Trail Network,1775-2003

More Related