. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. Oak-Gum Cypress m 100 Stand Age (Years) CD O) CO CD 1— o < "cC o c CD o CD D- Elm-Ash-Cottonwood. 60 >60 Stand Age (Years) O) CO 2 o c a CD 0_ m A Maple-Beech O 1962 ? 1985 50 >50 Stand Age (Years) CD CO a> o <D o CD Q. 50 -i 40 - Oak-Hickory. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration an
. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. Oak-Gum Cypress m 100 Stand Age (Years) CD O) CO CD 1— o < "cC o c CD o CD D- Elm-Ash-Cottonwood. 60 >60 Stand Age (Years) O) CO 2 o c a CD 0_ m A Maple-Beech O 1962 ? 1985 50 >50 Stand Age (Years) CD CO a> o <D o CD Q. 50 -i 40 - Oak-Hickory. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Dept. of Energy and Natural Resources; Critical Trends Assessment Project. Springfield, Ill. : Ill. Dept. of Energy and Natural Resources
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Keywords: ., bookcentury1900, booksubjecte, booksubjectecology, booksubjectman
