. Critical trends in Illinois ecosystems. Ecological assessment (Biology); Environmental impact analysis; Nature; Pollution; Conservation of natural resources; Environmental quality. Habitat loss rates in the seem to exceed rates for the state as a whole. Prairie accounted for almost three-fourths of the presettlement land- scape; today the onl\- representative of the prairie ecosystem is acres of high quality hill prairie. Wetlands have largely disappeared and occup\- only ;" of the basin. Forest has declined to S",. of the land area, but much of the riparian zone
. Critical trends in Illinois ecosystems. Ecological assessment (Biology); Environmental impact analysis; Nature; Pollution; Conservation of natural resources; Environmental quality. Habitat loss rates in the seem to exceed rates for the state as a whole. Prairie accounted for almost three-fourths of the presettlement land- scape; today the onl\- representative of the prairie ecosystem is acres of high quality hill prairie. Wetlands have largely disappeared and occup\- only ;" of the basin. Forest has declined to S",. of the land area, but much of the riparian zone throughout the basin retains at least a narrow forested strip. This buffer stabilizes the river banks and is consid- ered a primary reason for the relati\ eh good health of the Mackinaw River. Other significant features: • natural communities represented in higli quality natural areas include glacial drift hill. 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. Office of Realty and Environmental Planning; Illinois. Natural History Survey Division; Critical Trends Assessment Program. Springfield, Ill. : Office of Realty and Environmental Planning : Illinois Natural History Survey
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Keywords: ., bookauthorillinoisnaturalhistorysurveydivisi, booksubjectnature
