About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in SSSAJ

  1. Vol. 45 No. 4, p. 687-691
     
    Received: Nov 20, 1980
    Accepted: Feb 11, 1981


 View
 Download
 Alerts
 Permissions
Request Permissions
 Share

doi:10.2136/sssaj1981.03615995004500040003x

Areal Variation and Chemical Modification of Weathered Shale Infiltration Characteristics1

  1. R. J. Luxmoore,
  2. B. P. Spalding and
  3. I. M. Munro2

Abstract

Abstract

Spatial variability of infiltration into a weathered shale subsoil were evaluated at a site proximal to one used for shallow land burial of low-level radioactive waste at Oak Ridge National Laboratory. Double-ring infiltrometers were installed at 48 locations on a 2- by 2-m grid after the removal of 1 to 2 m of soil (Litz-Sequoia association, Typic Hapludults). Infiltration rates were measured before and during the 0- to 20- and 239- to 259-day periods following treatment with solutions of NaOH, KOH, NaF, NaAlO2, and Na2SiO3 at rates of 151 equivalents/m2. None of these chemical treatments significantly altered infiltration rate, indicating that chemical modification of soil exchange properties may be achieved without inducing hydrologic disturbance in these subsoils. A semivariogram analysis of infiltration data showed that areal variability was random; any spatial patterning must therefore occur at a smaller scale than 2 m. The frequency distribution of infiltration rate fitted a lognormal model with a geometric mean of 2 cm per day and a coefficient of variation of 130%.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America