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Highlights of the 2014 Interior Alaska FIA pilot study are now available. This 10-page briefing paper shares key findings from the full General Technical Report which is in press. Thanks to partnerships with multiple organizations, the Interior Alaska FIA project has moved into full production mode. More about the full-scale project can be found on our Interior Alaska FIA page.  

Tanaga GLiHT


Forest Inventory and Analysis (FIA) Coastal Alaska Client Meeting and Data Workshop
October 24 & 25, 2018 Anchorage, Alaska

Day 1 will be devoted to program and research updates
Day 2 will be a hands-on FIA.edu data workshop

Target audience: Anyone interested in learning about FIA inventory, applications of FIA data, or resources and tools for accessing FIA datasets.

Please RSVP to Marin Palmer at PNW_IRAM@fs.fed.us and spread the word about this meeting!

Seeking presenters: Timeslots available for 10-15 minute presentations. If you would like to present your research or project utilizing FIA data, contact us at PNW_IRAM@fs.fed.us

Can’t make it in person? Join remotely via the online webinar option! Please indicate your interest in remote participation.

Landscape photo of forest and lakes in foreground with snow-capped mountains in background.


What is the nation’s forest census and how do we know what is happening in America’s forests?

The Pacific Northwest Forest Inventory and Analysis Program developed an interactive story map to explain what our program does.

Forest Inventory and Analysis.

Oregon’s Forest Resources, 2001-2010: Ten-Year Forest Inventory and Analysis report is now available online.

This publication provides an update on the status of Oregon’s forests and includes an extensive set of 51 summary data tables. Additional inventory information and another 89 summary tables are included in the online supplement.

Oregon’s Forest Resources, 2001-2010: Ten-Year Forest Inventory and Analysis report.

California Carbon Report Released

The PNW-FIA program and California Department of Forestry and Fire Protection have produced a comprehensive analysis of the amounts of carbon in California’s forests, recent changes in forest carbon, and the causes of those changes (Christensen et al. 2017). The report to the California Board of Forestry is intended to help the Board meet the goals for carbon management set out by the legislature in Assembly Bill 1504. Inventory measurements and estimates for live and dead trees, down wood, understory vegetation, and soil were compiled for the years 2001-2015. We found that California’s forests were sequestering 32.8 million metric tons of carbon dioxide equivalent (MMT CO2e) per year, well above the legislative target of 5 MMT CO2e per year. Most of the carbon accumulation (39%) occurred on National Forests, followed by noncorporate private and corporate private owners (33 and 13%, respectively).
This report represents the first detailed inventory-based analysis of forest carbon in California and is full of results and statistics by landowner, region, forest type, and disturbance process. Future annual reports are planned, which will incorporate estimates of carbon in the harvested wood pool to provide a more complete assessment of the status and trends of California’s forest carbon.

Christensen, G.A.; Gray, A.N.; Kuegler, O.; Tase, N.A.; Rosenberg. M. 2017. AB 1504 California Forest Ecosystem and Harvested Wood Product Carbon Inventory: 2006- 2015. Final Report. California Department of Forestry and Fire Protection agreement no. 7CA02025. Sacramento, CA: California Department of Forestry and Fire Protection and California Board of Forestry and Fire Protection. 390 p.

This forest stand in Yosemite’s Illilouette Basin demonstrates a history of natural fire rotations and disturbance. Photo credit: Andy GrayThis forest stand in Yosemite’s Illilouette Basin demonstrates a history of natural fire rotations and disturbance. Photo credit: Andy Gray    


Forest Inventory and Analysis (FIA) Client Meeting and Data Workshop - October 2017

Jess Deans 2016 Photo courtesy of Jess Deans 2016 


PNW-FIA held a successful Client Meeting and Data Workshop on October 11 & 12, 2017 at Mt. Hood Community College in Gresham OR.


Meeting agenda

Presentations from the meeting


For information on future FIA data workshops and meetings, send an email to PNW_IRAM@fs.fed.us.

Interior Alaska Forest Inventory Collaborators Meeting - November 2016

The PNW Research Station’s Forest Inventory and Analysis Program in partnership with the State of Alaska’s Department of Natural Resources, Division of Forestry will conduct a key collaborators meeting for the Interior Alaska forest inventory project on November 30 - December 1, 2016, at the University of Alaska, Fairbanks. The objective of the meeting is to enhance relations and build capacity with key land managers for continuation of the first comprehensive inventory of all forested lands in Interior Alaska. Following a pilot project in 2014 and the successful completion of the 2016 summer field campaign in the Tanana Valley inventory unit, the U.S. Forest Service and State of Alaska plan to further develop cooperative agreements with essential Alaska partners to reach full field production by 2019. The 2016 collaborators meeting in Fairbanks provides a unique opportunity to share information, present initial findings, and discuss future challenges critical to the inventory of Interior Alaska’s boreal forest environments across all lands.

Presentations from the meeting:

Supporting documentation for the Fairbanks collaborators meeting:

Resource Monitoring and Assessment Program Review – February 2016

The Resource Monitoring and Assessment will undergo a comprehensive program review with the Pacific Northwest Research Station Executive Team, Forest Service Washington Office representative, and key stakeholders and clients from outside the agency. The PNW Research Station Director is responsible to the Forest Service, Congress, and a diverse group of stakeholders for a productive and efficiently functioning research station. The program reviews provide an opportunity for research programs to review existing charters and assess progress toward charter goals, as well as discuss strategic direction, vision, and future goals.

Supporting documentation for the Program Review:

FIA Science Symposium

The Forest Inventory and Analysis Program (FIA) just held its 12th FIA Symposium in Portland, Oregon in December 2015. More than 200 attendees enjoyed 13 invited plenary presentations, 124 contributed talks, and several special working group meetings over the course of three days. The impressive list of presentations covered many topics including:

  • Advances in tree biomass prediction
  • FIA in the boreal forests of Alaska
  • Latest on our analysis techniques and storytelling with FIA data
  • Applications of FIA in forest health
  • Forest carbon accounting
  • Improving our estimation of growth, removals, and mortality
  • Advances in change detection
  • Landscape scale change monitoring and mapping
  • The socio-economic dimensions of forest inventory
  • What’s going on with urban FIA?

Coinciding with the conference, the PNW Station published the abstracts of the talks in a Proceedings.

New Publication - California's forest products industry and timber harvest, 2012

This report traces the flow of California's 2012 timber harvest through the primary wood products industry and provides a description of the structure, condition, and economic impacts of California's forest products sector. Historical forest products industry changes are discussed, as well as trends in harvest, production, mill residue, and sales. Also examined are employment and worker earnings in the state's primary and secondary forest products industry. (McIver, Chelsea P.; Meek, Joshua P.; Scudder, Micah G.; Sorenson, Colin B.; Morgan, Todd A.; Christensen, Glenn A. 2015. California’s forest products industry and timber harvest, 2012. Gen. Tech. Rep. PNW-GTR-908. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 49 p).