Pacific Northwest Forest Inventory and Analysis
Susan A. Willits, Program
Manager
Forestry Sciences Laboratory
620 SW Main, Suite 400
P.O. Box 3890
Portland, OR 97208-3890
Phone: (503) 808-2066
Our Mission: To collect, compile, summarize, and
make available high-quality and comprehensive forest inventory data
and to provide interpretations of and produce research findings
from that data. (For more information, please visit Forest Inventory
and Analysis Program Page)
ABOUT US
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RESEARCH AREAS
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The
Forest Inventory and Analysis Program is one of seven
research program areas of the Pacific Northwest Research
Station. The Pacific Northwest Forest Inventory and Analysis
(FIA) program inventories the extent and condition of forest
resources and analyzes how these resources change over time.
The inventories included lands across all ownerships in Alaska,
California, Hawaii, Oregon, U.S. Pacific territories, and
Washington.
An aerial view of forest that will
be inventoried.
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FIA
consists of a nationally consistent core program, which can
be enhanced at the regional, state, or local level to address
special interests. The national core consists of three phases:
(1) A remote sensing phase aimed at classifying the land
into forest and nonforest and taking spatial measurements
such as fragmentation, urbanization, and distance variables.
( 2) FIA consists of a set of field sample locations
distributed across the landscape with approximately one sample
location plot every 6,000 acres. Field crews, who collect
a variety of forest ecosystem data, visit forested sample
locations.
(3) Forest Health Management consists of a subset of the
phase two plots that are visited during the growing season
in order to collect an extended suite of ecological data including
full vegetation inventory, tree and crown condition, soil
data, lichen diversity, coarse woody debris, and ozone damage.
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