The Effect of Raindrop Kinetic Energy on Soil Erodibility
Soil erosion is a very complex phenomenon, resulting from detachment and transport of soil particles by erosion agents. The kinetic energy of raindrop is the energy available for detachment and transport by splashing rain. The soil erodibility is defined as the ability of soil to resist to erosion. For this purpose, an experimental study was conducted in the laboratory using rainfall simulator to study the effect of the kinetic energy of rain (Ec) on the soil erodibility (K). The soil used was a sandy agricultural soil of 62.08% coarse sand, 19.14% fine sand, 6.39% fine silt, 5.18% coarse silt and 7.21% clay. The obtained results show that the kinetic energy of raindrops evolves as a power law with soil erodibility.
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 Abrahams, Athol. D., Atkinson, J.F., 1993. Relation between grain velocity and sediment concentration in overland flows. Water Resources Research, Vol. 29, n°9, pages: 3021-3028.
 Atlas, D.,1953. Optical extinction by rainfall. J. Meteor., 10, 486-488.
 Brooks, S. M. and Spencer T., 1995. Vegetation modification of rainfall characteristics: implication for rainfall erosivity following logging in Sabah, Malaysia. Journal of Tropical Forest Science 7(3): 435-446.
 Ellison, W.D., 1944. Studies of raindrop erosion. Agricultural Engineering 25, 131-6, 181-2.
 Ellison, W.D., 1947. Soil erosion studies. Agricultural Engineering. V. 28, p. 402-405.
 FornisRicardo L., Hans R. Vermeulen, Jan D. Nieuwenhuis, 2004. Kinetic energy–rainfall intensity relationship for Central Cebu, Philippines for soil erosion studies. Journal of Hydrology 300, PP: 20– 32.
 Fournier, 1972. La recherche en érosion et conservation des sols dans le continent africain.
 Fox, D.M. and Bryan, R.B., 1999. The relationship of soil loss by interrill erosion to slope gradient. Catena 38: 211-222.
 Gunn, R. et G. R. Kinzer, 1949. The terminal drops in stagnant air, J. Meteorol., 6, 243-248.
 Guy, B.J., Dickinson, W.T., Rudra, R.P. 1990. Hydraulics of sedimentladen sheet flow and the influence of simulated rainfall Earth surface Processes and Landforms, Vol. 15, pp: 101-118.
 Hudson, N., 1995. Soil conservation, 3rd ed. 391pp, BT Batsford, London.
 Kinnel, P.I.A., 1973. The problem of assessing the erosive power of rainfall from meteorological observations. S.S.S.AP Vol. 37 N°4pp 617- 662.
 Kinnel, 1982. Laboratory studies on the effect of drop size on splash erosion. J. Agric. Eng. 27, 431-439.
 Kinnell P.I.A. and Cummings D. 1993. Soil/slope gradient interactions in erosion by rain-impacted flow. Amer. Soc. of Agric. Engineers. 36, pp381-387.
 Laws, J. O., 1941. Measurements of the fall velocities of waterdrops and raindrops. Transactions- American Geophysical Union, 22, 709-721.
 Laws, J.O., Parsons, D.A., 1943. The relationship of raindrop size to intensity. Trans. Am. Geophys. Union 24, pages: 452-460.
 MatmazMikos, DarjaJostetGregorPetkovsek, 2010. Rainfall and runoff erosivity in the alpine climate of north Slovenia: a comparison of different estimation methods. Hydrological Sciences Journal, 51:1, 115- 126.
 Meyer, L.D., 1958. An investigation of methods for simulating rain fall on standard runoff plots and a sandy of the drop size velocity and kinetic energy of selected spray nozzles USDA, ARS, Spec. Rep. number 81.
 Moussouni, A., Mouzai L. and Bouhadef M., 2012. Laboratory experiments: Influence of rainfall characteristics on runoff and water erosion, Waset, 68, 1540-1543.
 Moussouni, A., Mouzai L. and Bouhadef M., 2013. The effects of rain and overland flow powers on agricultural soil erodibility, Waset, 76, 439-442.
 Nyssen J., Vandenreyken H., Moeyersons J., Deckers J., Mitiku Haile, Salles C.,Govers G., 2005. Rainfall erosivity and variability in the Northern Ethiopian Highlands. Journal of Hydrology 311 (2005) 172- 187.
 Pal Indrani, Al-TabbaaAbir, 2009. Suitability of different erosivity models used in RUSLE2 for the South West Indian region. Department of Engineering. University of Cambridge, Trumpington street, Cambridge CB IPZ, UK.
 Pan, C, Shangguan Z., 2006. Runoff hydraulic characteristics and sediment generation in sloped grassplots under simulated rainfall conditions. Journal of Hydrology 331: 178–185.
 Poesen, J., 1985. An improved splash transport model. Zeitschrift fur Geomorphologie, 29(2):193–211.
 Quansah, C., 1981. The effect of soil type, rain intensity and their interactions on splash detachment and transport. Journal of Soil Science 32, 215– 224.
 Riezebos , T. &Epema, G., 1985. Drop shape and erosivity. Part II: Splash detachment, transport and erosivity indices. Earth Surface Processes and Landforms, 10(1): 69-74.
 Roose E., 1981. Dynamique actuelle des sols ferralitiques et ferrugineux tropicaux d’Afrique occidentale. Cah. O.R.S.T.O.M., Sér. Pédol., vol., XVIII, N°3-4, pp :285-286.
 Roose E. et F. Lelong, 1976. Les facteurs de l’érosivité hydrique en Afrique Tropicale. Etudes sur petites parcelles expérimentales de sol. Revue de Géographie physique et de géologie dynamique, vol. XVIII, fasc. 4, pp. 365-374.
 Sempere Torres, D., Salles, C. Creutin, J. D. et Delrieu, G., 1992 quantification of soil detachment by raindrop impact: performance of classical formulae of kinetic energy in Mediterranean storms. Erosion and sediment transport monitoring programs in river basin. IAHS Publ. n°. 210.
 Van Boxel H. Jhon, 1997. Numerical model for the fall speed of raindrop in a rainfall simulator. Workshop on wind and water erosion.
 Van Dijk, A.I.J.M., Bruijnzeel, L.A.,Rosewell, C.J., 2002. Rainfall intensity – kinetic energy relationships: a critical literature appraisal. Journal of Hydrology 261: 1-23.
 Willis, P.T., 1984. Functional fits of some observed drop size distributions and parameterization of rain. L. Atmos. Sci. 41 (9), 1648- 1661.
 Wischmeïer, W.H. and Smith, D.D., 1958. Predicting rainfall erosion losses - a guide to conservation planning, Science and Education Administration, United States Department of Agriculture.
 Zachar, 1982. Soil erosion dupts. In soil science 10 Bratislava.