. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. Figure 2. Erosion by county, 1982 (values given in tons per acre per year). Figure 4. Change in erosion, 1982-1987 (values given in tons per acre per year}.. £23 43 Figure 3. Erosion by county. 1987 (values given in tons per acre per year).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. Figure 2. Erosion by county, 1982 (values given in tons per acre per year). Figure 4. Change in erosion, 1982-1987 (values given in tons per acre per year}.. £23 43 Figure 3. Erosion by county. 1987 (values given in tons per acre per year).. 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
