FIA was initially established to monitor the Nation’s timber supply and the amount of commercially available resources. These early surveys were not concerned with the forests, species, and tree sizes that were not considered commercially viable. Early FIA reported only on growing-stock trees on timberlands, i.e., commercially important tree species and sizes on forests that could sustain harvest operations. Current FIA reports analyze all of the forest resources. However, this science update will focus on long-term trend, and thus will use the traditional measures of growing stock and timberland. A more detailed publication focusing on all forests, species, and sizes will follow this science update and include all-live trees on all forest land analysis.
Hartsell, Andrew J. 2011. Alabama, 2010 forest inventory and analysis factsheet. e-Science Update SRS 042. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 4 p.