JEQ
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
 QUICK SEARCH:   [advanced]


     


Published online 9 August 2006
Published in J Environ Qual 35:1825-1835 (2006)
DOI: 10.2134/jeq2006.0068
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Abstract Freely available
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Web of Science (10)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Stone, W. W.
Right arrow Articles by Wilson, J. T.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Stone, W. W.
Right arrow Articles by Wilson, J. T.
Agricola
Right arrow Articles by Stone, W. W.
Right arrow Articles by Wilson, J. T.
Related Collections
Right arrow Water Management
Right arrow Agricultural Pesticides
Right arrow Preferential Flow
Right arrow Pesticides
Right arrow Experiment Design

Preferential Flow Estimates to an Agricultural Tile Drain with Implications for Glyphosate Transport

Wesley W. Stone* and John T. Wilson

U.S. Geological Survey, Indiana Water Science Center, 5957 Lakeside Blvd., Indianapolis, IN 46278


Figure 1
View larger version (26K):

[in a new window]
 
Fig. 1. Leary Weber Ditch study site in Hancock County, Indiana.

 

Figure 2
View larger version (13K):

[in a new window]
 
Fig. 2. Chloride concentration and specific conductance in tile drain effluent for the May 2004 storms at the Leary Weber Ditch tile drain study site. Regression equation subsequently used to estimate chloride concentrations of tile drain effluent in 15-min intervals through the storm hydrographs.

 

Figure 3
View larger version (13K):

[in a new window]
 
Fig. 3. April through December 2004 hourly rainfall and tile drain flow.

 

Figure 4
View larger version (21K):

[in a new window]
 
Fig. 4. (A) Hourly rainfall for the 19 May storm; (B) separated tile drain flow hydrograph, water table levels, and glyphosate concentrations for the storm; (C) closer look at the separated tile drain flow hydrograph at the time of increased flow. Tile drain flow hydrograph is separated into preferential and matrix flows by use of a simple chloride mixing analysis.

 

Figure 5
View larger version (23K):

[in a new window]
 
Fig. 5. (A) Hourly rainfall for the 30 May storm; (B) separated tile drain flow hydrograph, water table levels, and glyphosate concentrations for the storm; (C) closer look at the separated tile drain flow hydrograph at the time of increased flow. Tile drain flow hydrograph is separated into preferential and matrix flows by use of a simple chloride mixing analysis.

 

Figure 6
View larger version (8K):

[in a new window]
 
Fig. 6. Glyphosate concentration and preferential flow in the tile drain during the May 2004 storms at the Leary Weber Ditch tile drain study site.

 

Figure 7
View larger version (13K):

[in a new window]
 
Fig. 7. Glyphosate concentration and preferential flow as a percentage of total tile drain flow during the May 2004 storms at the Leary Weber Ditch tile drain study site.

 

Figure 8
View larger version (21K):

[in a new window]
 
Fig. 8. (A) Hourly rainfall for the November 2004 storm and (B) tile drain flow hydrograph and water table levels at the Leary Weber Ditch tile drain study site.

 





HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education
Vadose Zone Journal
Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome
Copyright © 2006 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.