USDA Forest Service

Forest Inventory and Analysis National Program


Forest Inventory & Analysis
National Office
U.S. Forest Service
1400 Independence Ave., SW
Washington, D.C. 20250-0003

(703) 605-4177

United States Department of Agriculture Forest Service.

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Program Features


Forest Health Indicators


Ozone Crown Condition Soil Quality Lichen
Down Woody Materials Vegetation Tree Mortality Tree Growth


Tree Mortality Indicator


Changes over time in the structure of forest resources are largely driven by stand dynamics (rates of regeneration, growth, and mortality), as well as timber removals and changes in land use.

Why is the Tree Mortality Indicator Important?

Tree mortality is a normal process that is an important facet of stand dynamics. Information about tree mortality can be used to determine if there are any unusual spatial or temporal patterns in mortality rates; or if the balance between growth and mortality is adequate to sustain a forest ecosystem.

Mortality data contribute to the investigation of several key forest ecosystem attributes such as sustainability, productivity, and aesthetics.


For more information about the Tree Mortality Indicator view the FIA Tree Mortality Indicator Fact Sheet.

USDA Forest Service
Last Modified: January 26, 2005

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