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Soil Science Society of America Journal Abstract -

Effects of Parent Material and Vegetation on Properties Related to Soil Erosion in Central Washington1

 

This article in SSSAJ

  1. Vol. 28 No. 3, p. 430-432
     
    Received: June 24, 1963
    Accepted: Feb 5, 1964


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doi:10.2136/sssaj1964.03615995002800030038x
  1. David D. Wooldridge2

Abstract

Abstract

In a preliminary study of physical properties of wild land soils, three soil parent materials were sampled by horizons under forest and adjacent grass cover. Soil properties analyzed were mean water-stable aggregate, bulk density, organic matter pH, total porosity, and % clay, silt, and sand. Several of the measured soil properties were related significantly to parent material and horizon depth. Effects of vegetative cover were not reflected in overall averages of soil property values. However, these values, broken down by parent materials and horizons, indicated that forest and grass covers were associated with soil property differences, although the relation of these differences to changes in parent materials and horizons is not consistent. Over 40% of the variation in soil erosion hazard (as measured by mean size of water-stable aggregates) is accounted for by multiple variation in soil organic matter content, pH, total porosity, and bulk density.

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