An Aid to Conservation Strategy in Illinois: The Critical Trends Assessment Project

  • Tom Heavisides
  • Bob Lieberman


Circa 1992 a series of satellites orbiting the earth captured images of the spectural reflectance covering 36 million acres of a geopolitically sculptured place called Illinois. After sophisticated computer processing, these images show that 80% of the landscape is agricultural, primarily row crops such as, corn, soybeans, and small grains. Forested and wooded land covers 11% of the state, and wetlands cover a little more than 3%. Chicago, the third largest city in the country, and other urban and built-up land covers a little less than 3½% of the state. Open water, the last land cover classification, covers slightly less than 1½% of the Illinois landscape.


Land Cover Ecosystem Management General Account Office Graphical Information System Illinois Natural History Survey 
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Copyright information

© Chapman & Hall 1997

Authors and Affiliations

  • Tom Heavisides
    • 1
  • Bob Lieberman
    • 1
  1. 1.Illinois Department of Natural ResourcesSpringfieldUSA

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