|
|
|
Release No. FS-0417 |
Contact: |
Joe Walsh, (202) 205-1294
Katie Weber, University of Wisconsin, (608) 262-3636 |
FOREST SERVICE AND UNIVERSITY OF WISCONSIN DEVELOP NEW TOOLS IDENTIFYING WILDLAND URBAN INTERFACE: WHERE FORESTS, HOMES AND WILDFIRES MEET
Research will aid federal agencies and local
communities in restoring our nation's forests and rangelands
WASHINGTON, July 1, 2004 –
The U.S. Department of Agriculture Forest Service and the University
of Wisconsin (Madison) today released new scientific maps depicting
the communities and lands within the wildland urban interface (WUI)
across the lower 48 states. This is the first consistent nationwide
representation of the WUI as defined in the Federal Register (Volume
66:751, 2001) and makes possible mapping and analysis at national,
state and local levels.
In all, 42 million homes or 37 percent of the
nation’s total are in the WUI. These lands comprise 273,000
square miles or nine percent of the 48 states. The WUI, where houses
meet or intermingle with wildland vegetation, is not only a high-value
environment for users, but also a focal area for human-environment
conflicts, such as wildland fires, habitat fragmentation, invasive
species and biodiversity decline.
While this research delineates the WUI, it does
not depict wildland fuel conditions or wildland fire risk or define
communities at risk. The risk of fire varies widely across WUI areas.
“These findings clearly depict the potentially
extensive scope of wildland fire issues confronting communities
across the nation,” said Dr. Ann Bartuska, Forest Service
deputy chief of research and development. “This information
will help land managers focus on these critical areas and develop
preventative measures as we continue to implement the Healthy Forests
Initiative.”
Using geographic information systems, Forest
Service and university researchers integrated U.S. Census Bureau
housing data and U.S. Geological Survey National Land Cover data,
to map the WUI based on housing data. While California leads the
nation with more than five million homes within the WUI, North Carolina
has the greatest area at more than 12 million acres. In 20 states,
50 percent or more of all homes are in the WUI.
“Our analysis, which integrates demographic and satellite
information, is quite unique,” said Dr. Roger Hammer, assistant
professor and researcher at the University of Wisconsin’s
Applied Population Laboratory, Madison. “Our research provides
the most current data on shifting population patterns and gives
us the ability to analyze the growth and size of the WUI.”
The findings include analysis of how WUI areas burned during previous
fire seasons. For example, while the devastating 2003 California
wildfires affected 533 square kilometers (132,000 acres) of WUI
areas and burned more than 3,600 structures, it represented only
about five percent of southern California’s total interface
area. Analysis of the Cedar Fire in San Diego County showed nearly
the entire periphery of the fire was along the WUI.
This collaborative research was accomplished using National Fire
Plan dollars.
#
Note: The maps are available at http://silvis.forest.wisc.edu/Library/WUILibrary.asp.
The media should use the white-background (600 dots per inch) national,
regional and state maps for graphical display. Images should be
downloaded for best results.
Additional background information is available at http://silvis.forest.wisc.edu/projects/WUI_Main.asp
|