Understory

The FIA Annual Business Reports evaluate the performance of the FIA program to ensure accountability and transparency to FIA partners, supporters and customers. Modeled on a corporate business report, they contain basic business information about the FIA program including accomplishments, performance measures, plans for the next fiscal year, agreements with other parties, and basic financial and staffing data. These reports are prepared by the National Office staff of the FIA Program, U.S. Department of Agriculture, Forest Service, Washington, DC.See more information for fiscal years 2021 and ...

This manual documents the field procedures by the Forest Inventory and Analysis Program (FIA) in the 2019 annual inventory of Oregon, Washington, and California.

Safety Zones on Slopes, Safety Zones and Wind, Escape Routes, Operational Implications, Management Implications, Tools, etc.

We explored discharge-suspended sediment relationships in 71 watersheds within nine larger basins in the North Coast of California. These watersheds are highly influenced by their tectonic setting and have a long history of timber harvest activity. We summarized these relationships by generated sediment rating curves (SRC) taking the form of a power function in log-log space: SSC = aQb. Where SSC represents suspended sediment concentration and Q represents normalized discharge. The rating parameters a and b define the vertical offset and slope of the relationship, respectively. We investigated...

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This manual documents the field procedures by the Forest Inventory and Analysis Program (FIA) in the 2019 inventory of the Hawaiian Islands.

This manual documents data collection procedures, codes, standards, and definitions used by the Pacific Northwest Research Station, Forest Inventory and Analysis (PNW-FIA) program in the 2019 annual forest inventory of Alaska.

This field guide supplemental describes the data items to record for Fire Effects and Recovery Study (FERS) plots; it is a supplement to the 2019 Field Instructions for the Annual Inventory of California, Oregon, and Washington.

This document describes the standards, codes, methods, and definitions for Forest Inventory and Analysis (FIA) field data items used for URBAN FIA inventories of San Diego, CA and Portland, OR by the PNW-FIA unit in 2019.

A collaboration between the Department of Natural and Environmental Resources (DNER) and USDA Forest Service