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Published online 27 February 2006
Published in Soil Sci Soc Am J 70:679-690 (2006)
DOI: 10.2136/sssaj2004.0395
© 2006 Soil Science Society of America
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Runoff and Interrill Erosion in Sodic Soils Treated with Dry PAM and Phosphogypsum

Z. Tanga, T. Leia, J. Yub, I. Shainbergc, A. I. Mamedovd, M. Ben-Hurc and G. J. Levyc,*

a College of Water Conservancy and Civil Engineering, China Agricultural Univ., Qinghua Donglu Rd, Beijing, 100083, PR China
b Institute of Water Resources, Huhhot, Inner Mongolia, PR China
c Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO), The Volcani Center, P.O. Box 6, Bet Dagan 50-250, Israel
d National Soil Erosion Research Lab., USDA-ARS-MWA; 275 South Russell St., West Lafayette, IN 47907 USA


Figure 1
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  		Fig. 1. Measured infiltration rate data as a function of cumulative simulated rain in the four soils studied with the lowest and highest exchangeable sodium percentage (ESP) levels. Bars indicate two standard deviations.

 

Figure 2
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  		Fig. 2. Measured final infiltration rate as a function of exchangeable sodium percentage (ESP) and the treatments studied in the four soils. Bars indicate a single confidence interval value at p = 0.05.

 

Figure 3
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  		Fig. 3. Calculated cumulative runoff as a function of exchangeable sodium percentage (ESP) and the treatments studied in the four soils. Bars indicate a single confidence interval value at p = 0.05.

 

Figure 4
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  		Fig. 4. Relative final infiltration rate (FIR) as a function of exchangeable sodium percentage (ESP) and the treatments studied in the four soils. Bars indicate two standard deviations.

 

Figure 5
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  		Fig. 5. Relative cumulative runoff as a function of exchangeable sodium percentage (ESP) and the treatments studied in the four soils. Bars indicate two standard deviations.

 

Figure 6
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  		Fig. 6. Measured soil loss as a function of exchangeable sodium percentage (ESP) and the treatments studied in the four soils. Bars indicate a single confidence interval value at p = 0.05.

 

Figure 7
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  		Fig. 7. Relative soil loss as a function of exchangeable sodium percentage (ESP) and the treatments studied in the four soils. Bars indicate two standard deviations.

 




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