"Comparison of Presettlement and Present Vegetation Cover of Marion Cou" by Daniel Unger
 

Document Type

Conference Proceeding

Publication Date

1998

Abstract

The vegetation types of Marion County, Illinois prior to European settlement, which were derived from soil association surveys, were compared to a satellite map of current vegetation types to quantify their change over time. GIS analysis indicates that 10% of presettlement prairie is currently grassland, 2% of presettlement prairie has been converted to forest, 32% of original prairie has been converted to agriculture and urban use, 17% of presettlement forest remains intact, grassland comprises 18% of presettlement forest while 21% of presettlement forest has been converted to agricultural and urban use.

Comments

Presented at the 2nd Southern Forestry GIS Conference, Athens, Georgia, October 28-29, 1998


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