Iowa's forest resources in 2002.
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Resour. Bull. NC-235. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 33 p.
Results of the 2002 annual inventory of Iowa show an estimated 2.7 million acres of forest land. The estimate of total all live tree volume on forest land is 3.9 billion cubic feet. Nearly 2.6 million acres of forest land in Iowa are classified as timberland. The estimate of growing-stock volume on timberland is 3.0 billion cubic feet. All live aboveground tree biomass on timberland is estimated at 106.1 million dry tons. Known pathogens and pests in Iowa?s forests include oak wilt and gypsy moth.
Leatherberry, Earl C; Brand, Gary J. 2004. Iowa''s forest resources in 2002. Resour. Bull. NC-235. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 33 p. https://doi.org/10.2737/NC-RB-235.