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Inventory and Monitoring

FIA logo and footpring of the Interior West Forest Inventory and Analysis Program

Inventory & Monitoring Program

The Inventory & Monitoring Program provides the data, analysis, and tools needed to effectively identify current status and trends for forests, including the effects of various management options and the threats and impacts that fire, insects, disease, and other natural processes pose.
A stand of young larch trees with a cloudy mountain scene in the background.

Warmer temperatures directly and indirectly affect western larch regeneration

Forest inventory data reveal direct and indirect effects of climate on western larch regeneration. A direct effect of climate is the shift of western larch regeneration toward cooler, drier sites and less regeneration at warmer, wetter sites. An indirect effect is that warmer temperatures are linked to increased wildfire, and western larch seedlings were more prevalent at recently disturbed sites.
A map of the United States showing forest loss event types - green (most of the northeast and west) shows stable forest, purple (most of the southeast) shows removal, and other colors indicate fire, stress, conversion, wind, and other.

Mapping causes of disturbance in U.S. forests

A collaborative project between USFS FIA, NASA, and several universities has developed a new, national map attributing the cause and timing of forest canopy cover losses occurring between 1986 and 2010 across the conterminous United States.
An aerial view of a forest. FIA data have helped several National Forest planning teams to characterize land areas in terms of snags.

Using Forest Inventory and Analysis (FIA) data to its best advantage for forest planning

A recently published article by RMRS researchers, Supporting National Forest System Planning with Forest Inventory and Analysis Data, provides examples that can help forest managers understand potential applications of FIA data.
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The Inventory & Monitoring Program provides the data, analysis, and tools needed to effectively identify current status and trends for forests, including the effects of various management options and the threats and impacts of fire, insects, disease, and other natural processes.

The Inventory & Monitoring Program conducts and continuously updates a comprehensive inventory and analysis of present and prospective conditions of the forest and rangelands of the Interior West. Specific objectives of the Program are to:

  • Collect and disseminate information about the forests of the Interior West States relating to forest distribution, condition, health and utilization;

  • Develop innovative methods for sampling and integrating inventory data with remotely sensed information;

  • Maintain a database of up-to-date statistics in order to provide resource information to the Forest Service, its cooperators, other public agencies, and the public at large; and

  • Develop methods and procedures to test and evaluate indicators for assessing rangeland status and health.

Visit the Rocky Mountain Research Station Forest Inventory and Analysis (FIA) webpage>>