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

Abstract

 

This article in JEQ

  1. Vol. 22 No. 1, p. 207-212
     
    Received: Feb 11, 1992
    Published: Jan, 1993


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

doi:10.2134/jeq1993.00472425002200010028x

A Zero-Tension Sampler for the Collection of Soil Water in Macropore Systems

  1. K. E. Simmons * and
  2. D. E. Baker
  1. Agric. Res. Dep., National Fertilizer and Environ. Res. Center, TVA, Muscle Shoals, AL 35660;
    Dep. of Agronomy, The Pennsylvania State Univ., University Park, PA 16802.

Abstract

Abstract

A zero-tension sampler was designed for the collection of soil leachate at 1.2 m in the soil profile to determine the effects of dairy manure and NH3NO3 applications on water quality in soils possessing a macropore structure. Nitrate-N concentrations in soil water collected from these samplers were compared with concentrations in soil water collected from conventional ceramic porous-cup samplers. The zero-tension samplers were constructed from 5-cm polyvinyl chloride (PVC) pipe and installed at a 45° angle in the soil profile. This design minimized the amount of field excavation and the interruption of routine cultivation. On average, approximately 50% of the samplers contained solution after rainfall and the data were effective at demonstrating the effect of macropore flow on NO3-N concentrations in the leachate. Nitrate-N concentrations in soil water collected from porous-cup samplers were consistently higher than those collected from zero-tension samplers. Mean NO3-N concentrations in soil water from porous-cup and zero-tension samplers ranged from approximately 5 to 60 mg L−1 and 0 to 20 mg L−1, respectively.

This research was partially supported by the Pennsylvania Dep. of Environ. Resources, Bureau of Soil and Water Conservation and the Chesapeake Bay Program.

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

Copyright © .