Illinois Forests 2015

Abstract

The third full annual inventory of Illinois' forests reports more than 4.9 million acres of forest land and 99 tree species. Forest land is dominated by oak/hickory and elm/ash/cottonwood forest types, which make up 92 percent of total forest area. The volume of growing stock on timberland has been rising since 1948 and currently totals 7.0 billion cubic feet. Average annual net growth of growing stock from 2010 to 2015 was about 146.1 million cubic feet per year. This report includes additional information on forest attributes, land-use change, carbon, timber products, and forest health. The following information is available online at https://doi.org/10.2737/NRS-RB-113: 1) detailed information on forest inventory methods, statistics, and quality assurance of data collection; 2) tables that summarize quality assurance; 3) a core set of tabular estimates for a variety of forest resources; and 4) a Microsoft® Access database that represents an archive of data used in this report, with tools that allow users to produce customized estimates. AcknowledgmentsThe authors would like to thank the many individuals who contributed to both the inventory and the analysis of Illinois' forest resources. Primary field crew and quality assurance staff over the [2010][2011][2012][2013][2014][2015]

Northern Great Plains Forests 2015

“…Definitions for "tree" and many other terms in this report are available in the FIA online glossary: https://www.nrs.fs.fed.us/fia/ data-tools/state-reports/glossary/. Note that previous FIA reports for other states (e.g., Crocker et al [2017], Lister et al [2017]) also describe these methods.…”