Landscape Modeling of
White Pine Blister Rust Sensitivity
|
|
Composite Map of Blister Rust Sensitivity Red areas indicate highly sensitive areas, yellow areas indicate regions where susceptibility to blister rust is relatively low. |
Terry Brown, Mark A.
White,
and George E. Host
Natural Resources Research Institute
University of Minnesota
Duluth, MN 55811
Mature white pine forest has been significantly reduced in Northeastern Minnesota over the past 120 years. Blister rust, a usually lethal fungal disease of white pine, was also introduced about 120 years ago, and now poses a major challenge to attempts to reestablish white pines in the region. This study uses geographic data in conjunction with forest inventory information to predict the sensitivity of sites in Northeastern Minnesota to Blister Rust.
The new map refines the Van Arsdale classification of Blister Rust Hazard Zones developed in 1961, and, in particular shows locations within the original severe hazard zones where white pine regeneration may be possible and desirable.
This report consists of several products, including the full documentation in PDF format, a photo gallery, and a set of downloadable ARC/INFO files that present the hazard zone sensitivity in GIS format.
For questions on this project, contact George Host at (218)-720-4264.
- Final report, September 1999
- Also available as printable postscript
or viewable / printable PDF
(Adobe Acrobat format).
- Field site gallery
- Photographs from a tour of St. Louis Co. White Pine regeneration sites.
- Arc-Info files
- 30 m resolution hazard zones and electivity scores for Region 212
- Individual maps from the report, as PDF files.
- Complete set of electivity plots
- See examples in report. For reference, 1 MB of images.
This project was supported in part by the Great Lakes Assessment project of the USFS North Central Forest Experiment Station. It was also supported by the Minnesota Department of Natural Resources through the Cloquet Forestry Center.
http://oden.nrri.umn.edu/rustmap/default.htm updated November 29 1999 by George Host