Abstract
Purpose
Rills are basic pathways for runoff, sediment, and pollutant transport at hillslopes within agricultural watershed. The objectives of this study were to investigate the development processes of rill network and morphological characteristics and to examine their affecting factors.
Materials and methods
A soil box (10 m long, 1.5 m wide, and 0.5 m deep) was subjected to four successive simulated rains under rainfall intensity of 90 mm h−1 with slope gradients of 15° and 25°. Digital elevation models (5 mm resolution) were created from the terrestrial laser scanning measurements.
Results and discussion
Total soil loss was 46.3 and 61.0 kg m−2 at the 15° and 25° slope gradients, and rill erosion occupied over 75% of the total soil loss. Soil loss and rill erosion were expressed as power equations to the product of slope gradient and accumulated rainfall. Rill networks evolved in a converging way and reached maturity in the fourth rain. Main rill length and rill width, depth, and degree of contour line departure increased with increased rains, while rill width/depth ratio showed the opposite trend. Secondary rill length and rill density increased in the first two rains, and then both decreased in the latter two rains. Scour effect of lateral interfluve flow and meander cutoffs of rill flow were two sub-processes of rill piracy. Rill length and density decreased due to rill piracy specific in merging of secondary rills into main rills. Plow pan and secondary headcuts played key roles in main rill bed incision and sidewall expansion processes, while both had little impact on secondary rills.
Conclusions
Results of this study can improve the understanding of how plow pan, rill piracy, and secondary headcut affect rill network and morphologies and provide fundamental knowledge for designing rill prevention practices.
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References
Bennett SJ, Alonso CV, Prasad SN, Römkens MJM (2000) Experiments on headcut growth and migration in concentrated flows typical of upland areas. Water Res Res 36(7):1911–1922. https://doi.org/10.1029/2000WR900067
Berger C, Schulze M, Rieke-Zapp D, Schlunegger F (2010) Rill development and soil erosion: a laboratory study of slope and rainfall intensity. Earth Surf Proc Land 35(12):1456–1467. https://doi.org/10.1002/esp.1989
Bewket W, Sterk G (2003) Assessment of soil erosion in cultivated fields using a survey methodology for rills in the Chemoga catchment. Ethiopian Agriculture Ecosystem Environment 97:81–93
Bingner RL, Wells RR, Momm HG, Rigby JR, Theurer FD (2016) Ephemeral gully channel width and erosion simulation technology. Nat Hazards 80(3):1949–1966. https://doi.org/10.1007/s11069-015-2053-7
Brunton DA, Bryan RB (2000) Rill network development and sediment budgets. Earth Surf Proc Land 25(7):783–800. https://doi.org/10.1002/1096-9837(200007)25:7<783::AID-ESP106>3.0.CO;2-W
Bryan RB, Poesen J (1989) Laboratory experiments on the influence of slope length on runoff, percolation and rill development. Earth Surf Proc Land 14(3):211–231. https://doi.org/10.1002/esp.3290140304
Favis-Mortlock DT, Boardman J, Parsons AJ, Lascelles B (2000) Emergence and erosion: a model for rill initiation and development. Hydrol Process 14(11-12):2173–2205. https://doi.org/10.1002/1099-1085(20000815/30)14:11/12<2173::AID-HYP61>3.0.CO;2-6
Foster GR, Lane LJ, Mildner WF (1983) Seasonally ephemeral cropland gully erosion. Proceedings of Natural Resources Modeling Symposium. Pingree Park, CO., USA, 16–21:463–365
Fullen MA (1985) Compaction, hydrological processes and soil erosion on loamy sands in east Shropshire, England. Soil Till Res 6(1):17–29. https://doi.org/10.1016/0167-1987(85)90003-0
Gessesse GD, Fuchs H, Mansberger R, Klik A, Rieke-Zapp DH (2010) Assessment of erosion, deposition and rill development on irregular soil surfaces using close range digital photogrammetry. Photogramm Rec 25(131):299–318. https://doi.org/10.1111/j.1477-9730.2010.00588.x
Giménez R, Govers G (2001) Interaction between bed roughness and flow hydraulics in eroding rills. Water Resour Res 37(3):791–799. https://doi.org/10.1029/2000WR900252
Gómez JA, Darboux F, Nearing MA (2003) Development and evolution of rill networks under simulated rainfall. Water Resour Res 39(6):1148
Gong JG, Jia YW, Zhou ZH, Wang Y, Wang WL, Peng H (2011) An experimental study on dynamic processes of ephemeral gully erosion in loess landscape. Geomorphology 125(1):203–213. https://doi.org/10.1016/j.geomorph.2010.09.016
Gordon LM, Bennett SJ, Bingner RL, Theurer FD, Alonso CV (2007) Simulating ephemeral gully erosion in AnnAGNPS. Trans ASABE 50(3):857–866. 10.13031/2013.23150
Govindaraju RS, Kavvas ML (1994) A spectral approach for analyzing the rill structure over hillslopes. Part 1. Development of stochastic theory. J Hydrol 158(3-4):333–347. https://doi.org/10.1016/0022-1694(94)90061-2
Gravelius H (1914) Flusskunde. Goschen’sche Verlagshandlung, Berlin, p 176
He J, Li X, Jia L, Gong H, Cai Q (2014) Experimental study of rill evolution processes and relationships between runoff and erosion on clay loam and loess. Soil Sci Soc Am J 78(5):1716–1725. https://doi.org/10.2136/sssaj2014.02.0063
Hofer M, Lehmann P, Stähli M, Seifert S, Krafczyk M (2012) Two approaches to modeling the initiation and development of rills in a man-made catchment. Water Resour Res 48:1–17
Horton RE (1945) Erosional development of streams and their drainage basins. Hydrophysical approach to quantitative morphology. Bull Geol Soc Am 56(3):275–370. https://doi.org/10.1130/0016-7606(1945)56[275:EDOSAT]2.0.CO;2
Lal R (2002) Gully erosion. Encyclopedia of soil science. Marcel Dekker, New York, pp 630–632
Li G, Abrahams AD, Atkinson JF (1996) Correction factors in the determination of mean velocity of overland flow. Earth Surf Proc Land 21(6):509–515. https://doi.org/10.1002/(SICI)1096-9837(199606)21:6<509::AID-ESP613>3.0.CO;2-Z
Liu BY, Nearing MA, Risse LM (1994) Slope gradient effect on soil loss for steep slopes. Trans ASAE 37(6):1835–1840. 10.13031/2013.28273
Mancilla GA, Chen S, McCool DK (2005) Rill density prediction and flow velocity distributions on agricultural areas in the Pacific Northwest. Soil Till Res 84(1):54–66. https://doi.org/10.1016/j.still.2004.10.002
Momm HG, Wells RR, Bennett SJ, Gilley A (2016) Image analysis for quantifying spatiotemporal evolution of rill networks in laboratory experiments. In: Garcia and Hanes (eds) Proceedings of the River-Flow 2016—Eighth International Conference on Fluvial Hydraulics; Constantinescu. Taylor & Francis Group, St. Louis, MO, U.S.A., July 12–15, 2016
Nachtergaele J, Poesen J, Sidorchuk A, Torru D (2002) Prediction of concentrated flow width in ephemeral gully channels. Hydrol Process 16(10):1935–1953. https://doi.org/10.1002/hyp.392
Shen H, Zheng F, Wen L, Lu J, Jiang Y (2015) An experimental study of rill erosion and morphology. Geomorphology 231:193–201. https://doi.org/10.1016/j.geomorph.2014.11.029
USDA NRCS (1999) Soil taxonomy: a basic system of soil classification for making and interpreting soil surveys. Agric. Handbook 436, 2nd edn. U.S. Government Printing Office, Washington, DC
Vinci A, Brigante R, Todisco F, Mannocchi F, Radicioni F (2015) Measuring rill erosion by laser scanning. Catena 124:97–108. https://doi.org/10.1016/j.catena.2014.09.003
Wells RR, Bennett SJ, Alonso CV (2010) Modulation of headcut soil erosion in rills due to upstream sediment loads. Water Resour Res 46(12):1–16
Wells RR, Momm HG, Rigby JR, Bennett SJ, Bingner RL, Dabney SM (2013) An empirical investigation of gully widening rates in upland concentrated flows. Catena 101:114–121. https://doi.org/10.1016/j.catena.2012.10.004
Wells RR, Momm HG, Bennett SJ, Gesch KR, Dabney SM, Cruse R, Wilson GV (2016) A measurement method for rill and ephemeral gully erosion assessments. Soil Sci Soc Am J 80(1):203–214. https://doi.org/10.2136/sssaj2015.09.0320
Wu Q, Wang L, Wu F (2014) Tillage—impact on infiltration of the loess plateau of China. Acta Agri Scandi, Section B—Soil Plant Sci 64(4):341–349
Yang M, Tian J, Liu P (2006) Investigating the spatial distribution of soil erosion and deposition in a small catchment on the loess plateau of China, using 137Cs. Soil Tilla Res 87(2):186–193. https://doi.org/10.1016/j.still.2005.03.010
Zhang HX (1983) The characteristics of hard rain and its distribution over the loess plateau. Acta Geograph Sin 38(4):416–425 (in Chinese with English Abstract)
Zheng FL, Tang KL (1997) Rill erosion process on steep slope land of the loess plateau. J Sediment Res 12(1):52–59
Zhou PH, Wang ZL (1987) Soil erosion rainfall standard in the loess plateau. Bull Soil Water Conserv 7(1):38–44 (in Chinese with English Abstract)
Zhou PH, Zhang XD, Tang KL (2000) Rainfall installation of simulated soil erosion experiment hall of the State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau. Bull Soil Water Conserv 20(4):27–30 45 (in Chinese with English Abstract)
Zhu XM (1956) Soil erosion classification at the loessial region. Acta Pedol Sin 4(2):99–116 (in Chinese)
Acknowledgements
The authors would like to thank Dr. Glenn V. Wilson’s help in revising the English grammar, as well as Dr. Robert R. Wells, the editors, and anonymous reviewers for their valuable comments and suggestions.
Funding
This study was supported by the National Natural Science Foundation of China (Grant no. 41271299 and 4171101192), Opening Funds of MWR Key Laboratory of Soil and Water Loss Process and Control in the Loess Plateau (No. 2017001), Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau (A314021403-C2), and China Scholarship Council.
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Responsible editor: Renduo Zhang
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Qin, C., Zheng, F., Xu, X. et al. A laboratory study on rill network development and morphological characteristics on loessial hillslope. J Soils Sediments 18, 1679–1690 (2018). https://doi.org/10.1007/s11368-017-1878-y
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DOI: https://doi.org/10.1007/s11368-017-1878-y