PNW-IDB Periodic Inventory Database

The PNW-FIA Integrated Database (IDB) contains periodic inventory data collected by PNW-FIA, the National Forest System (NFS: Regions 4, 5 and 6), and the BLM for California, Oregon, and Washington. Dates of the inventories range from 1988 to 2000. Data acquired from each inventory program were compiled into one database with a common set of formats, definitions, codes, measurement units, column names, and table structures. When possible, the same procedures, algorithms, equations, and calculation methods were used to compile all inventory data in the IDB. This database contains an extensive amount of measured and calculated information for each inventory plot. 

Source and dates of forest inventory data: 

Additional Resources 

For more information regarding current or previous FIA inventories, including current data summaries for each state and related published reports, see the PNW-FIA State Stats page. Contact info for questions regarding inventory data or the database tool is available on the IRAM team page. Data for all states and territories in the U.S., including the PNW region, can also be accessed on the national FIA Data and Tools website. Raw data are available via the FIA Data Mart and table generator tools such as DATIM and EVALIDator provide a user-friendly interface for producing quick, customizable data summaries. The national FIADB User Guide provides comprehensive information on all fields in the database and is a good place to start when using the data.

Release Notes

Version 2.0 was completed in 2005. Current inventory data is released in the PNW-FIADB.

Downloads

PNW-FIA Periodic Inventory Database

PNW-FIA Periodic Inventory Database User Guide (PDF - 1.79 MB)