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Spatial Analysis of Machine-Wheel Traffic Effects on Soil Physical Properties

Marcia L. Housea, William L. Powersb, Dean E. Eisenhauer*,c, David B. Marxd and Daneal Fekersillassiec

a Dep. of Biological Systems Engineering, 138 L.W. Chase Hall, Univ. of Nebraska, Lincoln, NE 68583-0726
b Dep. of Agronomy, 279 Plant Science, Univ. of Nebraska, Lincoln, NE 68583-0915
c 223 L.W. Chase Hall, Dep. of Biological Systems Engineering, Univ. of Nebraska, Lincoln, NE 68583-0726
d Dep. of Biometry, 103 Miller Hall, Univ. of Nebraska, Lincoln, NE 68583-0712



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Fig. 1. Periods (furrows) of spectral density peaks—ln Ks.

 


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Fig. 2. Periods (furrows) of spectral density peaks—ln Rp.

 


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Fig. 3. Periods (furrows) of spectral density peaks—{rho}b.

 


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Fig. 4. Observed and fitted Ks along Transect 1.

 


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Fig. 5. Observed and fitted Rp along Transect 1.

 


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Fig. 6. Observed and fitted {rho}b along Transect 1.

 


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Fig. 7. Maximum Rp at furrow surface and in 150-mm depth intervals to 450 mm along Transect 1.

 


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Fig. 8. Regression of {rho}b vs. Rp along Transect 1 at 95% confidence intervals (CI).

 


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Fig. 9. Regression of log Ks vs. {rho}b along Transect 1 at 95% confidence intervals (CI).

 


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Fig. 10. Regression of log Ks vs. Rp along Transect 1 at 95% confidence intervals (CI).

 


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Fig. 11. Log Ks predicted vs. log Ks measured along Transects 2 and 3.

 





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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
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Vadose Zone Journal
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Environmental Quality
The Plant Genome
Copyright © 2001 by the Soil Science Society of America.