Articles | Volume 24, issue 3
https://doi.org/10.5194/npg-24-569-2017
https://doi.org/10.5194/npg-24-569-2017
Research article
 | 
28 Sep 2017
Research article |  | 28 Sep 2017

Quantifying the changes of soil surface microroughness due to rainfall impact on a smooth surface

Benjamin K. B. Abban, A. N. (Thanos) Papanicolaou, Christos P. Giannopoulos, Dimitrios C. Dermisis, Kenneth M. Wacha, Christopher G. Wilson, and Mohamed Elhakeem

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Cited articles

Abaci, O. and Papanicolaou, A. N.: Long-term effects of management practices on water-driven soil erosion in an intense agricultural sub-watershed: monitoring and modelling, Hydrol. Process., 23, 2818–2837, https://doi.org/10.1002/hyp.7380, 2009.
Al-Durrah, M. M. and Bradford, J. M.: The mechanism of raindrop splash on soil surfaces, Soil Sci. Soc. Am. J., 46, 1086, https://doi.org/10.2136/sssaj1982.03615995004600050040x, 1982.
Allmaras, R. R., Burwell, R. E., Larson, W. E., and Holt, R. F.: Total porosity and random roughness of the interrow zone as influenced by tillage, USDA Conservation Re. Rep. 7, USDA, Washington, D.C., 16 pp., 1966.
Bertuzzi, P., Rauws, G., and Courault, D.: Testing roughness indices to estimate soil surface roughness changes due to simulated rainfall, Soil Till. Res., 17, 87–99, https://doi.org/10.1016/0167-1987(90)90008-2, 1990.
Burrough, P. A.: Multiscale sources of spatial variation in soil. I. The application of fractal concepts to nested levels of soil variation, J. Soil Sci., 34, 577–597, https://doi.org/10.1111/j.1365-2389.1983.tb01057.x, 1983.
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Short summary
We examine rainfall-induced change in soil microroughness of bare soil surfaces in agricultural landscapes with initial microroughness length scales on the order of 2 mm (smooth surfaces). Past studies have focused on scales of 5–50 mm and have reported a decrease in miccroroughness. Findings in this study show a consistent increase in microroughness under rainfall action for initial length scales of 2 mm. Thus, rainfall–surface interactions can be different for smooth and rough surfaces.