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ARS Home » Midwest Area » Columbia, Missouri » Cropping Systems and Water Quality Research » Research » Publications at this Location » Publication #80261
Title: ESTIMATION OF CLAYPAN DEPTH BY ELECTROMAGNETIC (EM) MEANS ON SANBORN FIELD

Author
item LORENZ, T - UNIV OF MO
item Kitchen, Newell
item BROWN, J - UNIV OF MO

Submitted to: University of Missouri Agricultural Experiment Station Publication
Publication Type: Experiment Station
Publication Acceptance Date: 1/15/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Measurements made each 25 years on Sanborn Field have demonstrated the heterogeneity of soils within each plot. In spring 1996 an extensive electromagnetic induction survey of all 44 plots on Sanborn Field was conducted. The purpose of this survey was to map the depth to the argillic horizon. The range in topsoil depth on Sanborn Field varies from about 6 to 30 in. While there appears to be some variability associated with individual plots, the majority is at a larger scale. For example, greater topsoil depth along the west side of the field is characteristic of a split buried channel that merges on plot 43. This may be from leveling efforts at the time the plots were first laid out or the result of natural deposition with erosion.