Forests Unveiled


Forest growth, mortality, carbon, and diversity, all at your fingertips. rFIA simplifies the estimation of forest variables using the Forest Inventory and Analysis Database, putting the power to explore in the hands of the people.


What will you discover?

Install the released version from CRAN:

install.packages("rFIA")

Or, the development version from GitHub:

devtools::install_github('hunter-stanke/rFIA')

Find us on Github View Documentation

About rFIA


rFIA is an R package aimed at increasing the accessibility and use of the USFS Forest Inventory and Analysis (FIA) Database. Providing a user-friendly, open source toolset to easily query and analyze FIA Data, rFIA simplifies the estimation of forest variables from the FIA Database and allows all R users (experts and newcomers alike) to unlock the flexibility and potential inherent to the Enhanced FIA design.

Specifically, rFIA improves accessibility to the spatio-temporal estimation capacity of the FIA Database by producing space-time indexed summaries of forest variables within user-defined population boundaries. Direct integration with other popular R packages (e.g., dplyr, sp, and sf) facilitates efficient space-time query and data summary, and supports common data representations and API design. The package implements design-based estimation procedures outlined by Bechtold & Patterson (2005), and has been validated against estimates and sampling errors produced by FIA’S EVALIDator.

Current development is focused on the implementation of spatially-enabled model-assisted estimators to improve population, change, and ratio estimation. We enivision rFIA as a key component in the future of the FIA Program, targetting expansion in small area estimation, timber product monitoring, urban inventory, and the development oflong-term monitoring and reporting tools.

See Example Usage to get started, or contact us to see how we can help with your specific project needs!


Meet the Authors


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Forests of the Appalachian Trail

The Appalachian Trail is uniquely situated to serve as a barometer for the air, water, and biological diversity of the Appalachian …

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