My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in SSSAJ

  1. Vol. 54 No. 6, p. 1690-1697
     
    Received: Oct 23, 1989
    Published: Nov, 1990


    * Corresponding author(s):
 View
 Download
 Alerts
 Permissions
 Share

doi:10.2136/sssaj1990.03615995005400060031x

Characteristics and Taxonomy of Sodic Soils as a Function of Landform Position

  1. B. D. Seelig,
  2. J. L. Richardson  and
  3. W. T. Barker
  1. Dep. Soil Science
    Dep. Animal and Range Science, North Dakota State Univ., Fargo, ND 58105

Abstract

Abstract

Sodic soils in central North Dakota are related to landform position in relation to the water table and plant communities. Classification problems are commonly encountered when field observations are compared with established taxa. This study focused on relating soil and plant characteristics to differences in soil water regime. Soils at three landform positions, designated as upland, intermediate, and wetland, were sampled at regular intervals. The sampling pattern at each position formed a grid (49 pedons/grid). Each pedon was described and classified. Selected pedons were analyzed for major cations, electrical conductivity (EC), and dispersible clay. Water-table observations were made from wells with perforated casings at each area sampled. Plant composition was determined by the point-frame and quadrat methods. Landform position and plant communities reflected variations in sodic soil properties and soil water regime. The highest amounts of dispersible clay and lowest Ca/Mg ratios were in the sodic soils at the two lowest positions. The highest sodium adsorption ratios (SAR) were in soils at the intermediate position. These soils were associated with a plant community dominated by inland saltgrass [Distichlis spicata ssp. stricta (Torrey) Thorne] in the intermediate position. Sodic soils from the upland position were drier than the sodic soils at the two lower positions and were not so severely affected by Na.

Published with the approval of the director of the North Dakota Agric. Exp. Sta. as Journal Paper no. 1854.

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

Copyright © . Soil Science Society of America