Investigating Effect of Sediment Load and Soil Texture on Flow Hydraulic characteristics of a Simulated Rill Erosion

Document Type : Research Paper

Authors

1 P.hD. Student in Soil Science Dept. of Soil Science, Univ. of Zanjan, Iran

2 Prof, Dept. of Soil Science, Univ. of Zanjan, Iran

3 Assoc. Prof, Dept. of Water Engineering, Univ. of Tabriz, Iran

Abstract

Rills are often the major area and source of runoff and sediment in hillslopes. The hydraulic characteristics of flow in the rills can be affected by type and amount of sediment. Knowledge on the flow hydraulic characteristics is essential to find the major mechanism of rill development. The objective of this study was to evaluate the effects of type and amount of sediment on the rill hydraulic characteristics. Laboratory experiments were carried out in a flume with 4m× 0.4 m×0.3m dimensions located at 9% slope steepness under 90 mm h-1 rainfall intensity which was applied on three soil textures of loam, loamy sand and sandy clay loam with four replications. Reynolds number, Froude number, flow depth, Darcy–Weisbach friction coefficient, shear stress and stream power were determined during the rill erosion process. The results showed that Reynolds number and Darcy–Weisbach friction coefficient increased as the sediment load increased in the rills. Froude number decreased as sediment load increased which was attributed with decreasing flow velocity. Shear stress and stream power and flow depth increased with increasing the eroded sediment. Flow depth increased with incease of sediment load, varying from 0.041 to 1mm in loam soil, 0.07 to 1.3 mm in loamy sand soil and 0.06 to 0.7 mm in sandy clay loam soil. Coefficient of determination between sediment load and all hydraulic characteristics were higher than 90% for loam and loamy sand and higher than 60% for sandy clay loam. This study revealed that significant interaction was between sediment load and hydraulic characteristics of flow in the rills.

Keywords

References

Asadi H, Golicalrod, MA and Gorgi M, 2015. Dynamic variation of sediment concentration in erosion in field experiments. Journal of Science and Technology of Agriculture and Natural Resources 4: 125-139.
Abrahams AD, Parson AJ and Luk SH, 1990. Field experiments on the resistance to overland flow on desert hillslopes. IAHS Publication 189: 1–18.
An J, Zheng F, Lu J and Li G, 2012. Investigating the role of raindrop impact on hydrodynamic mechanism of soil erosion under simulated rainfall conditions. Soil Science 177: 517-526.
Auerswald K, Fiener P and Dikau R, 2009. Rates of sheet and rill erosion in Germany-A meta-analysis. Geomorphology 111:  182-193.
Auzet AV, Boiffin J, Papy F, Ludwig B and Maucorps J, 1993. Rill erosion as a function of the characteristics of cultivated catchments in the north of France. Catena 20: 41-62.
Beuselinck L, Govers G, Steegen A and Quine TA, 1999. Sediment transport by overland flow over an area of net deposition. Hydrological Processes 13: 2769–2782.
Blake GR and Hartge KH, 1986. Bulk density, Pp. 363-375. In: Klute I, (ed). Methods of Soil Analysis. Part 1 - Physical and Mineralogical Methods Second Edition. American Society of Agronomy, Madison WI.
Bouyoucos GJ, 1962. Hydrometer method improved for making particle size analyses of soils 1. Agronomy journal 54(5):464-5.
Bryan RB, 1990.Knickpoint evolution in rillwash. Catena 17: 111-132.

Bryan RB, 2001. Soil erodibility and processes of water erosion on hillslope. Geomorphology 32: 385–415.

 
Crouch RJ, Reynols KC, Hicks RW and Greentree DA, 2007. Soils and their use for earthworks. Pp. 367-393. In: Charman PEV and Murphy BW (eds). In Soils- Their Properties and Management. 3rd. Oxford University Press: Melbourne.
Di Stefano C, Ferro V, Pampalone V and Sanzone F, 2013. Field investigation of rill and ephemeral gully erosion in the Sparacia experimental area, South Italy. Catena 101: 226–234.
Emmett WW, 1970. The Hydraulics of Overland Flow on Hillslopes. US Government Printing Office, Washington.
Gilley JE, Kottwitz, E and Simanton J, 1990. Hydraulic characteristics of rills. Transactions of the American Society of Agricultural Engineers 1899-1906.
Govers G, 1990. Empirical relationships for the transport formulae of overland flow. IAHS Publication 189: 45–63.
Guy BT, Rudra RP, Dickenson WT and Sohrabi TM,  2009. Empirical model for calculating sediment-transport capacity in shallow overland flows: model development. Biosystems Engineering 103: 105–115.
Hung Y, Chen X, Luo B, Ding L and Gong, C, 2015. An experimental study of rill sediment delivery in purple soil, using the volume-replacement method. Peer Journal 3:  1220-1221.
Jacob H, Clarke G ,2002. Particle density, Pp. 1692. In: Klute I, (ed). Methods of Soil Analysis.  Part 4- Physical Method. American Society of Agronomy, Madison WI.
Kemper WD and Rosenau  RC, 1986. Aggregate stability and size distribution. No. 9.Pp. 425-442. In Methods of Soil Analysis, Part I. Physical and Mineralogical Methods (2nd Edition).  Agronomy Monography.
Klute, A. 1986. Gravel, pp. 1188. In: Klute, A. (Ed.). Methods of Soil Analysis. Part 1- physical and Mineralogical Methods. American Society of Agronomy, Madison WI.
Mirzaee S, Asadzadeh F and Nazarnejad H, 2016. Predicting manning and Darcy-Weisbach roughness coefficients in a loess soil surface under different rock fragment covers. Journal of Watershed Management Research 8 ( 15) :73-81
Nearing MA, Norton LD, Bulgakov DA, Larionov LT and Dontsova KM, 1997. Hydraulics and erosion in eroding rills. Water Resources Research 33: 865-876.
Peng, W, Zhang, Z and Zhang K, 2015. Hydrodynamic characteristics of rill flow on steep slopes. Hydrological Processes 29: 3677–3686.
Prins D, Gomer D and Blez S, 1992. Studies of the causes of solid erosion on marl soils in northern Algeria . The Role of Traditional Soil Tillage. Land Degradation and Development 5(4): 271-280.
Reichert JM and Norton LD, 2013. Rill and interrill erodibility and sediment characteristics of clayey Australian Vertosols and a Ferrosol. Soil Research 51: 1-9.
Romero CC, Stroosnijder L and Baigorria GA, 2007. Interrill and rill erodibility in the northern Andean Highlands. Catena 70: 105-113.
Rostami y, 1391. Relationship between intensity of rainfall, duration and kinetic energy of rainfall using rainfall simulated  in Zanjan province. Master's Thesis, Zanjan university, Iran (Farsi).
Roshun SH, Vahabzadeh Kebria G, Solaimani K and Khaledi Darvishan A. 1397. The impact of sand and gravel mining on river bedload amount and gradation (Case study: Zaremrood river, Mazandaran province). Journal of Water and Soil Science university of Tabriz, 28(2): 83-95.(Farsi)
Shapiro SS and Wilk MB, 1965. An for normality (complete samples). Biometrika 52 (3–4): 591–611.
Shih  HM and Yang CT, 2009. Estimating overland flow erosion capacity using unit stream power. International Journal of Sediment Research 24: 46–62.
Smith MW, Cox NJ and Bracken LJ, 2007. Applying flow resistance equations to overland flow. Progress in Physical Geography 31(4): 363–387.
Takken I and Govers G, 2000. Hydraulics of interrill overland flow on rough, bare soil surfaces. Earth Surface Processes and Landforms 25: 1387–1402.
Wenying P, Zhuodong ZH and Keli  ZH, 2015.  Hydrodynamic characteristics of rill flow on steep slopes. Hydrological Processes 29: 3677–3686.
Wirtz S, Seeger M, Ries JB, 2012. Field experiments for understanding and quantification of rill erosion processes. Catena 91: 21-34.
Woodward  DE, 1999. Method to predict cropland ephemeral gully erosion. Catena: 37 (3–4): 393–399.
Zhang GH, Liu BY, Nearing MA, Huang CH and Zhang KL, 2002. Soil detachment by shallow flow. American Society of Agricultural Engineers 45(2): 351–357.
Zhang GH, Liu BY, Liu GB, He XW and Nearing MA, 2003. Detachment of undisturbed soil by shallow flow. Soil Science Society of America Journal 67: 713–719.
Zhang GH, Liu GB, Tang MK and Zhang XC, 2008. Flow detachment of soils under different land uses in the Loess Plateau of China. American Society of Agricultural and Biological Engineers 51(3): 883–890.
Zhang GH, Liu YM, Han YF and Zhang XC, 2009. Sediment transport and soil detachment on steep slopes: I.   Transport capacity estimation. Soil Science Society of America Journal 73(4): 1291–1297.
Zhang GH, Shen RI, Chang LO, RongTG, Cao YG and Zhang XC, 2010. Effects of sediment load on hydraulics of overland flow on steep slopes. Earth Surface Processes and Landforms Journal 35: 1811–1819.
Zhang XC, Li ZB and Ding WF, 2005. Validation of WEPP sediment feedback relationships using spatially  distributed rill  erosion data. Soil Science Society of America Journal 69: 1440 – 1447.
Zhang QW, Dong YQ, Li  F, Zhang AP and Lei TW, 2014. Quantifying detachment rate of eroding rill or ephemeral gully for WEPP with flume experiments. Journal of Hydrology 519:2012-2019.
 
Water and Soil Science
Volume 29, Issue 3
October 2019
Pages 151-164

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