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Published online 6 May 2005
Published in Soil Sci Soc Am J 69:748-756 (2005)
DOI: 10.2136/sssaj2003.0311
© 2005 Soil Science Society of America
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Does Soil Surface Roughness Increase or Decrease Water and Particle Transfers?

Frédéric Darbouxa,* and Chi-hua Huangb

a INRA-Science du sol, B.P. 20619, 45166 Olivet Cedex, France
b USDA-ARS, National Soil Erosion Research Lab., 275 S. Russell St., Purdue Univ., West Lafayette, IN 47907-2077



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  		Fig. 1. Experimental setup showing the soil boxes and the watering troughs used to implement the seepage condition. Pipes connecting the troughs to the base of the box are not shown.

 


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  		Fig. 2. Digital elevation model showing typical initial microtopographies of surfaces with depressions (left) or smooth (right) for a 67 by 126 cm area. Height increases from dark to light color. The left, right and center white strips are box edges and metal dividing plate.

 


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  		Fig. 3. An illustration of the sequence of operations conducted during a rain event on each side of the study box, showing changes in the plot exposed to rain and changes in feeder connection. Runoff and rain fluxes are schematic representations of measured data.

 


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  		Fig. 4. Storage capacity calculated from laser scanned surfaces as function of cumulative rainfall for (a) smooth surfaces, and (b) surfaces with initial depressions. Note differences in vertical scales.

 




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