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Forest Regeneration on Two Old Fields in Southwestern Illinois
William C. Ashby and George T. Weaver
The American Midland Naturalist
Vol. 84, No. 1 (Jul., 1970), pp. 90-104
Published by: The University of Notre Dame
Stable URL: http://www.jstor.org/stable/2423729
Page Count: 15
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Total tallies of trees 2.6 inches DBH or larger and subsampling of smaller woody and herbaceous vegetation were done on two old fields in Union Co. which had been abandoned 35 or 40 years prior to 1967. Tulip tree (Liriodendron tulipifera) predominated in a closed stand on lower, gentle slopes adjacent to a creek. Sugar maple (Acer saccharum) predominated on flat areas adjacent to another creek. Slopes above the sugar maple stand were partly forested with sweet gum (Liquidambar styraciflua) as the major species and sassafras (Sassafras albidum) locally predominant. Habitat factors related to variations in tree regeneration were soil type, physiography, and proximity to tree cover. The findings extend appreciably reports of old-field successional types in southern Illinois.
The American Midland Naturalist © 1970 The University of Notre Dame