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This article in SSSAJ

  1. Vol. 34 No. 1, p. 105-111
     
    Received: Feb 10, 1969
    Accepted: Oct 3, 1969


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doi:10.2136/sssaj1970.03615995003400010030x

Early Effects of Forest Vegetation and Topographic Position on Dark-Colored, Prairie-Derived Soils1

  1. J. W. Geis,
  2. W. R. Boggess and
  3. J. D. Alexander2

Abstract

Abstract

A complete development range of soils from the Humic Gley (Haplaquolls) and Brunizem (Argiudolls) soils of the original tall grass prairie to well-developed Brunizem-Gray-Brown Podzolic Intergrade (Mollic and Aquollic Hapludalfs) soils was studied in a recently forested “Prairie Grove” remnant in eastcentral Illinois. The first measurable changes occur in organic carbon, cation exchange capacity, and base saturation. Alterations in color and structural development which distinguish a minimal A2 horizon are followed by accelerated movement of clay from the A to B horizons. Differences in soil development in an area of uniform forest occupancy are related to the physiographic position of the soil units and the subsequent retarding of normal forest soil development by conditions of excessive soil moisture.

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