XIAO Peiqing, YAO Wenyi, SHEN Zhenzhou, YANG Chunxia, LYU Xizhi, JIAO Peng. Effects of Shrub on Runoff and Soil Loss at Loess Slopes Under Simulated Rainfall[J]. Chinese Geographical Science, 2017, 27(4): 589-599. doi: 10.1007/s11769-017-0889-3
Citation: XIAO Peiqing, YAO Wenyi, SHEN Zhenzhou, YANG Chunxia, LYU Xizhi, JIAO Peng. Effects of Shrub on Runoff and Soil Loss at Loess Slopes Under Simulated Rainfall[J]. Chinese Geographical Science, 2017, 27(4): 589-599. doi: 10.1007/s11769-017-0889-3

Effects of Shrub on Runoff and Soil Loss at Loess Slopes Under Simulated Rainfall

doi: 10.1007/s11769-017-0889-3
Funds:  Under the auspices of National Basic Research Program of China (No. 2011CB403303), National Natural Science Foundation of China (No. 41571276), Innovation Scientists and Technicians Troop Construction Projects of Henan Province (No. 162101510004), Foundation of Yellow River Institute of Hydraulic Research of China (No. HKY-JBYW-2016-33)
More Information
  • Corresponding author: XIAO Peiqing.E-mail:peiqingxiao@163.com
  • Received Date: 2016-08-09
  • Rev Recd Date: 2016-12-01
  • Publish Date: 2017-08-27
  • Improved understanding of the effect of shrub cover on soil erosion process will provide valuable information for soil and water conservation programs. Laboratory rainfall simulations were conducted to determine the effects of shrubs on runoff and soil erosion and to ascertain the relationship between the rate of soil loss and the runoff hydrodynamic characteristics. In these simulations a 20° slope was subjected to rainfall intensities of 45, 87, and 127 mm/h. The average runoff rates ranged from 0.51 to 1.26 mm/min for bare soil plots and 0.15 to 0.96 mm/min for shrub plots. Average soil loss rates varied from 44.19 to 114.61 g/(min·m2) for bare soil plots and from 5.61 to 84.58 g/(min·m2) for shrub plots. There was a positive correlation between runoff and soil loss for the bare soil plots, and soil loss increased with increased runoff for shrub plots only when rainfall intensity is 127 mm/h. Runoff and soil erosion processes were strongly influenced by soil surface conditions because of the formation of erosion pits and rills. The unit stream power was the optimal hydrodynamic parameter to characterize the soil erosion mechanisms. The soil loss rate increased linearly with the unit stream power on both shrub and bare soil plots. Critical unit stream power values were 0.004 m/s for bare soil plots and 0.017 m/s for shrub plots.
  • [1] Abrahams A D, Parsons A J, Luk S H, 1988. Hydrologic and sediment responses to simulated rainfall on desert hillslopes in southern Arizona. Catena, 15(2): 103-117. doi:10.1016/0341-8162(88)90022-7 doi:10.1016/0341-8162(88)90022-7 doi:10.1016/0341-8162(88)90022-7 doi:10.1016/0341-8162(88)90022-7
    [2] An J, Zheng F L, Lu J et al., 2012. Investigating the role of raindrop impact on hydrodynamic mechanism of soil erosion under simulated rainfall conditions. Soil Science, 177(8): 517-526. doi: 10.1097/SS.0b013e3182639de1
    [3] Boardman J, 2006. Soil erosion science: reflections on the limitations of current approaches. Catena, 68(2-3): 73-86. doi: 10.1016/j.catena.2006.03.007
    [4] Bryan R B, 2000. Soil erodibility and processes of water erosion on hillslopes. Geomorphology, 32(3-4): 385-415. doi: 10.1016/S0169-555X(99)00105-1
    [5] Casermeiro M A, Molina J A, De la Cruz C M T et al., 2004. Influence of scrubs on runoff and sediment loss in soils of Mediterranean climate. Catena, 57(1): 91-107. doi: 10.1016/S0341-8162(03)00160-7
    [6] Cerdà A, 1998. The influence of geomorphological position and vegetation cover on the erosional and hydrological processes on a Mediterranean hillslope. Hydrological Processes, 12(4): 661-671. doi:10.1002/(SICI)1099-1085(19980330)12:4<661:: AID-HYP607>3.0.CO;2-7
    [7] Chatterjea K, 1998. The impact of tropical rainstorms on sediment and runoff generation from bare and grass-covered surfaces: a plot study from Singapore. Land Degradation and Development, 9(2): 143-157. doi:10.1002/(SICI)1099-145X (199803/04)9:2<143::AID-LDR264>3.0.CO;2-I
    [8] Chen Wenliang, 1984. Combined rainfall simulator with side-spray. Bulletin of Soil and Water Conservation, 4(5): 36-41. (in Chinese)
    [9] Elliot W J, Laflen J M, 1993. A process based rill erosion model. Transactions of the ASABE, 36(1): 65-72. doi: 10.13031/2013.28315
    [10] Flanagan D C, Chaudhari K, Norton L D, 2002. Polyacrylamide soil amendment effects on runoff and sediment yield on steep slopes: Part I. Simulated rainfall conditions. Transactions of the ASAE, 45 (5):1327-1337. doi: 10.13031/2013.11070
    [11] Giménez R, Govers G, 2008. Effects of freshly incorporated straw residue on rill erosion and hydraulics. Catena, 72(2): 214-223. doi: 10.1016/j.catena.2007.05.004
    [12] Huang C H, Bradford J M, 1993. Analyses of slope and runoff factors based on the WEPP erosion model. Soil Science Society of America Journal, 57(5): 1176-1183. doi: 10.2136/sssaj1993.03615995005700050002x
    [13] Lane L J, Hernandez M, Nichols M, 1997. Processes controlling sediment yield from watersheds as functions of spatial scale. Environmental Modeling and Software, 12(4): 355-369. doi: 10.1016/S1364-8152(97)00027-3
    [14] Lei T W, Nearing M A, 1998. Rill erosion and morphological evolution: a simulation model. Water Resources Research, 34(11): 3157-3168. doi: 10.1029/98WR02162
    [15] Li M, Yao W Y, Ding W F et al., 2009. Effect of grass coverage on sediment yield in the hillslope-gully side erosion system Journal of Geographical Sciences, 19(3): 321-330. doi: 10.1007/s11442-009-0321-8
    [16] Moore I D, Burch G L, 1986. Sediment transport capacity of sheet and rill flow: application of unit stream power theory. Water Resources Research, 22(8): 1350-1360. doi: 10.1029/WR022i008p01350
    [17] Nearing M A, Norton L D, Bulgakov D A et al., 1997. Hydraulics and erosion in eroding rills. Water Resources Research, 33(4): 865-876. doi: 10.1029/97WR00013
    [18] Neave M, Abrahams A D, 2002. Vegetation influences on water yields from grassland and shrubland ecosystems in the Chihuahuan Desert. Earth Surface Processes and Landforms, 27(9): 1011-1020. doi: 10.1002/esp.389
    [19] Pan C Z, Ma L, Shangguan Z P, 2010. Effectiveness of grass strips in trapping suspended sediments from runoff. Earth Surface Processes and Landforms, 35(9): 1006-1013. doi: 10.1002/esp.1997
    [20] Pan C Z, Shangguan Z P, 2006. Runoff hydraulic characteristics and sediment generation in sloped grassplots under simulated rainfall conditions. Journal of Hydrology, 331(1-2): 178-185. doi: 10.1016/j.jhydrol.2006.05.011
    [21] Prosser I P, Dietrich W E, Stevenson J, 1995. Flow resistance and sediment transport by concentrated overland flow in a grassland valley. Geomorphology, 13(1): 71-86. doi: 10.1016/0169-555X(95)00020-6
    [22] Reichert J M, Norton L D, 2013. Rill and interrill erodibility and sediment characteristics of clayey Australian Vertosols and a Ferrosol. Soil Research, 51(1): 1-9. doi:10.1016/0169-555X (95)00020-6
    [23] Shen Zhenzhou, Liu Puling, Xie Yongsheng et al., 2006. Study of plot soil erosion characteristic under different underlying horizon. Bulletin of Soil and Water Conservation, 26(3): 6-9. (in Chinese)
    [24] Shih H M, Yang C T, 2009. Estimating overland flow erosion capacity using unit stream power. International Journal of Sediment Research, 24(1): 46-62. doi:10.1016/S1001-6279 (09)60015-9
    [25] Tang Kangli, Xi Daoqin, Song Qingfang et al., 1984. Soil erosion patterns and their distribution in Xingzihe Watershed. Bulletin of Soil and Water Conservation, 4(5): 32-39. (in Chinese)
    [26] Wainwright J, Parsons A J, Abrahams A D, 2000. Plot-scale studies of vegetation, overland flow and erosion interactions: case studies from Arizona and New Mexico. Hydrological Processes, 14(16-17): 921-943. doi:10.1002/1099-1085 (200011/12)14:16/17<2921::AID-HYP127>3.0.CO;2-7
    [27] Wang Z Y, Wang G Q, Huang G H, 2008. Modeling of state of vegetation and soil erosion over large areas. International Journal of Sediment Research, 23(3): 181-196. doi: 10.1016/S1001-6279(08)60018-9
    [28] Xiao P Q, Yao W Y, Römkens M J M, 2011. Effects of grass and shrub on the critical unit stream power in overland flow. International Journal of Sediment Research, 26(3): 387-394. doi: 10.1016/S1001-6279(11)60102-9
    [29] Xiao Peiqing, Yao Wenyi, Shen Zhenzhou et al., 2011. Experimental study of critical flow energy for slope erosion under the influence of vegetation cover. Advances in Water Science, 22(2): 229-234. (in Chinese)
    [30] Yang C T, 1972. Unit stream power and sediment transport. Journal of the Hydraulics Division, Proceedings of the American Society of Civil Engineers, 98 (HY10): 1805-1826.
    [31] Zhang G C, Shen R C, Luo R T et al., 2010. Effects of sediment load on hydraulics of overland flow on steep slopes. Earth Surface Processes and Landforms, 35(15): 1811-1819. doi: 10.1002/esp.2019
    [32] Zhang L, Wang J M, Bai Z K et al., 2015. Effects of vegetation on runoff and soil erosion on reclaimed land in an opencast coal-mine dump in a loess area. Catena, 128: 44-53. doi: 10.1016/j.catena.2015.01.016
    [33] Zhang Yubin, Cao Ning, Xu Xiaohong et al., 2014. Relationship between soil and water conservation practices and soil conditions in low mountain and hilly region of Northeast China. Chinese Geographical Science, 24(2): 147-162. doi:10.1007/s 11769-013-0620-y
    [34] Zheng Fenli, 1989. Relation between critical slope length of occurring rill erosion and slope gradient. Soil and Water Conservation in China, 8: 23-25. (in Chinese)
    [35] Zheng M G, Cai Q G, Chen H, 2007. Effect of vegetation on runoff-sediment yield relationship at different spatial scales in hilly areas of the Loess Plateau, North China. Acta Ecologica Sinica, 27(9): 3572-3581. doi:10.1016/S1872-2032(07) 60075-4
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(203) PDF downloads(475) Cited by()

Proportional views
Related

Effects of Shrub on Runoff and Soil Loss at Loess Slopes Under Simulated Rainfall

doi: 10.1007/s11769-017-0889-3
Funds:  Under the auspices of National Basic Research Program of China (No. 2011CB403303), National Natural Science Foundation of China (No. 41571276), Innovation Scientists and Technicians Troop Construction Projects of Henan Province (No. 162101510004), Foundation of Yellow River Institute of Hydraulic Research of China (No. HKY-JBYW-2016-33)
    Corresponding author: XIAO Peiqing.E-mail:peiqingxiao@163.com

Abstract: Improved understanding of the effect of shrub cover on soil erosion process will provide valuable information for soil and water conservation programs. Laboratory rainfall simulations were conducted to determine the effects of shrubs on runoff and soil erosion and to ascertain the relationship between the rate of soil loss and the runoff hydrodynamic characteristics. In these simulations a 20° slope was subjected to rainfall intensities of 45, 87, and 127 mm/h. The average runoff rates ranged from 0.51 to 1.26 mm/min for bare soil plots and 0.15 to 0.96 mm/min for shrub plots. Average soil loss rates varied from 44.19 to 114.61 g/(min·m2) for bare soil plots and from 5.61 to 84.58 g/(min·m2) for shrub plots. There was a positive correlation between runoff and soil loss for the bare soil plots, and soil loss increased with increased runoff for shrub plots only when rainfall intensity is 127 mm/h. Runoff and soil erosion processes were strongly influenced by soil surface conditions because of the formation of erosion pits and rills. The unit stream power was the optimal hydrodynamic parameter to characterize the soil erosion mechanisms. The soil loss rate increased linearly with the unit stream power on both shrub and bare soil plots. Critical unit stream power values were 0.004 m/s for bare soil plots and 0.017 m/s for shrub plots.

XIAO Peiqing, YAO Wenyi, SHEN Zhenzhou, YANG Chunxia, LYU Xizhi, JIAO Peng. Effects of Shrub on Runoff and Soil Loss at Loess Slopes Under Simulated Rainfall[J]. Chinese Geographical Science, 2017, 27(4): 589-599. doi: 10.1007/s11769-017-0889-3
Citation: XIAO Peiqing, YAO Wenyi, SHEN Zhenzhou, YANG Chunxia, LYU Xizhi, JIAO Peng. Effects of Shrub on Runoff and Soil Loss at Loess Slopes Under Simulated Rainfall[J]. Chinese Geographical Science, 2017, 27(4): 589-599. doi: 10.1007/s11769-017-0889-3
Reference (35)

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return