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Historically, the Northern Research Station's Forest Inventory and Analysis program conducted inventories of a state's forest on a periodic basis. In Illinois, periodic inventories were completed in 1948, 1962, 1985, and 1998 (Essex and Gansner 1965, Raile and Leatherberry 1988, Schmidt et al. 2000, Central States Forest Experiment Station 1949).
Historically, the Northern Research Station's Forest Inventory and Analysis program conducted inventories of a state's forest on a periodic basis. In Illinois, periodic inventories were completed in 1948, 1962, 1985, and 1998 (Essex and Gansner 1965, Raile and Leatherberry 1988, Schmidt et al. 2000, Central States Forest Experiment Station 1949).
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