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Published online 31 August 2007
Published in J Environ Qual 36:1495-1502 (2007)
DOI: 10.2134/jeq2006.0018
© 2007 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
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Variable Rainfall Intensity and Tillage Effects on Runoff, Sediment, and Carbon Losses from a Loamy Sand under Simulated Rainfall

C.C. Trumana,*, T.C. Stricklanda, T.L. Pottera, D.H. Franklinb, D.D. Boscha and C.W. Bednarzc

a USDA-ARS, Southeast Watershed Research Lab., Tifton, GA 31793
b USDA-ARS, J. Phil Campbell Sr., Natural Resource Conservation Center, Watkinsville, GA 30677
c Univ. of Georgia, Coastal Plain Experiment Station, Tifton, GA 31793


Figure 1
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  		Fig. 1. Simulated rainfall intensity patterns applied and runoff rates from the Tifton loamy sand for each rainfall intensity pattern (Ic, constant rainfall intensity; Iv, variable rainfall intensity) and tillage (CT, conventional tillage; ST, strip tillage) treatments studied. Bars = SE. Note differences in scale between simulated rainfall and runoff.

 

Figure 2
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  		Fig. 2. Sediment yield rates from the Tifton loamy sand for each rainfall intensity pattern (Ic, constant rainfall intensity; Iv, variable rainfall intensity) and tillage (CT, conventional tillage; ST, strip tillage) treatments studied. Bars = SE.

 

Figure 3
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  		Fig. 3. Sediment carbon rates from the Tifton loamy sand for each rainfall intensity pattern (Ic, constant rainfall intensity; Iv, variable rainfall intensity) and tillage (CT, conventional tillage; ST, strip tillage) treatments studied. Bars = SE.

 

Figure 4
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  		Fig. 4. Sediment carbon enrichment ratios (CER) from the Tifton loamy sand for each rainfall intensity pattern (Ic, constant rainfall intensity; Iv, variable rainfall intensity) and tillage (CT, conventional tillage; ST, strip tillage) treatments studied.

 




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