About Us | Help Videos | Contact Us | Subscriptions
 

Soil Science Society of America Journal Abstract -

Hydraulic Properties of Fullerton Cherty Silt Loam1

 

This article in SSSAJ

  1. Vol. 45 No. 4, p. 692-698
     
    Received: Dec 11, 1980
    Accepted: Apr 2, 1981


 View
 Download
 Alerts
 Permissions
Request Permissions
 Share

doi:10.2136/sssaj1981.03615995004500040004x
  1. R. J. Luxmoore,
  2. T. Grizzard and
  3. M. R. Patterson2

Abstract

Abstract

Soil hydraulic properties at eight depths in a Fullerton cherty silt loam (a clayey, kaolinitic, thermic Typic Paleudult) profile were derived from measurements of water content with a calibrated neutron probe and of matric potential with tensiometers during drainage of a flooded 2- by 2- by 3-m deep soil plot. Soil cores taken from the field plot were used for laboratory determinations of the retention properties. The field retention data were generally unsatisfactory, indicating significant differences in the response times and spatial resolution of the tensiometers and neutron probe. The tensiometers did not provide reliable hydraulic gradient data during drainage. Hydraulic conductivity was calculated by the instantaneous profile method and by three simple field methods, assuming a unit hydraulic gradient in all methods. There were greater differences in hydraulic characteristics between two profiles 1 m apart than there were between the alternative methods of calculation. Maximum hydraulic conductivity calculated by the instantaneous profile method for the well-aggregated B horizons had values up to 58 and 177 cm per day at two positions in the soil plot.

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

Copyright © . Soil Science Society of America