JEP  Vol.11 No.6 , June 2020
Soil Detachment with Organic Mulching Using Rainfall Simulator in Comparison with a Short Duration Natural Rainfall for Effective Soil Conservation
Abstract: The impact of raindrop on sandy soil was studied using rainfall simulator and natural rainfall to determine average soil detached. Erosion by rainfall is one of the major hazards threatening the productivity of farmlands. This study determined the rate of soil detachment in comparison between natural rainfall and simulated rainfall for effective soil conservation measure. The height of the simulator was varied considering the diameter of the nozzles which were considered during the design stage of the rain simulator. Two plots of dimensions 2 m × 2 m each were cleared with one considered for bare and treated soils for both the natural rainfall and simulated rainfall. Splash cups were installed on each of the plots at half depth of the cup after the clearing of the area at 0.4 m × 0.4 m apart. Two sets of rain gauge were placed at the experimental site to note the volume of natural rainfall on the farm. The average soil detached was analysed using statistical analysis where t-test was also carried out to know the difference in mean. There was a significant difference in the degree of soil detachment between bare and treated soil under natural rainfall experiment; t(18) = 8.917, p < 0.01. The mean of the natural rainfall for the bare soil was 11.6910 compared to that of the treated soil of 7.75. Size of effect (Eta-square (&eta;2) = 0.8154) reveals that the nature of soil accounted for 81.5% variance in the average detachment rate. For simulated experiments with a mean value of 7.3360 have higher tendency of detachment than treated soil with a mean value of 4.2240. Size of effect (Eta-square (&eta;2) = 0.630) reveals that the soil types accounted for 63% variance in the average detachment. It was concluded that 40.33% soil was found to be conserved using the cow dungs mixed with bare soil to compact the soil. The nozzle size, simulator height, rainfall intensity and other rainfall parameters all contributed to the amount of average soil detached.
Cite this paper: Adewumi, J. , Musa, J. , Adeosun, O. , Akpoebidimiyen, O. , Adekunle, A. and Adewumi, B. (2020) Soil Detachment with Organic Mulching Using Rainfall Simulator in Comparison with a Short Duration Natural Rainfall for Effective Soil Conservation. Journal of Environmental Protection, 11, 457-469. doi: 10.4236/jep.2020.116027.

[1]   Wenninger, J., Uhlenbrook, S., Lorentz, S. and Leibundgut, C. (2008) Identification of Run Off Generation Processes Using Combined Hydrometric, Tracer and Geophysical Methods in a Headwater Catchment in South Africa. Hydrological Sciences Journal, 53, 65-80.

[2]   Wang, B., Zhang, G.H., Shi, Y.Y. and Zhang, X.C. (2014) Soil Detachment by Overland Flow under Different Vegetation Restoration Models in the Loess Plateau of China. Catena, 116, 51-59.

[3]   Shi, Z.H., Fang, N.F., Wu, F.Z., Wang, L., Yue, B.J. and Wu, G.L. (2012) Soil Erosion Processes and Sediment Sorting Associated with Transport Mechanisms on Steep Slopes. Journal of Hydrology, 454, 123-130.

[4]   Shi, Z.H., Yue, B.J., Wang, L., Fang, N.F., Wang, D. and Wu, F.Z. (2013) Effects of Mulch Cover Rate on Inter-Rill Erosion Processes and the Size Selectivity of Eroded Sediment on Steep Slopes. Soil Science Society of America Journal, 77, 257-267.

[5]   Liu, F., Zhang, G.H., Sun, L. and Wang, H. (2016) Effects of Biological Soil Crusts on Soil Detachment Process by Overland Flow in the Loess Plateau of China. Earth Surface Processes and Landforms, 41, 875-883.

[6]   Bullard, J.E., Ockelford, A., Strong, C.L. and Aubault, H. (2018) Impact of Multi-Day Rainfall Events on Surface Roughness and Physical Crusting of Very Fine Soils. Geoderma, 313, 181-192.

[7]   Zheng, S., Lourenco, S.D., Cleall, P.J. and Ng, A.K. (2019) Erodibility of Synthetic Water Repellent Granular Materials: Adapting the Ground to Weather Extremes. Science of the Total Environment, 689, 398-412.

[8]   Dunkerley, D. (2020) A Review of the Effects of Throughfall and Stemflow on Soil Properties and Soil Erosion. In: Precipitation Partitioning by Vegetation, Springer, Cham, 183-214.

[9]   Wilson, G.V., Wells, R., Kuhnle, R., Fox, G. and Nieber, J. (2018) Sediment Detachment and Transport Processes Associated with Internal Erosion of Soil Pipes. Earth Surface Processes and Landforms, 43, 45-63.

[10]   Wu, B., Wang, Z., Zhang, Q. and Shen, N. (2018) Distinguishing Transport-Limited and Detachment-Limited Processes of Interrill Erosion on Steep Slopes in the Chinese Loessial Region. Soil and Tillage Research, 177, 88-96.

[11]   Santos, J.C.N.D., Andrade, E.M.D., Medeiros, P.H.A., Guerreiro, M.J.S. and Palácio, H.A.D.Q. (2017) Land Use Impact on Soil Erosion at Different Scales in the Brazilian Semi-Arid. Revista Ciência Agronomica, 48, 251-260.

[12]   Hao, H.X., Wang, J.G., Guo, Z.L. and Hua, L. (2019) Water Erosion Processes and Dynamic Changes of Sediment Size Distribution under the Combined Effects of Rainfall and Overland Flow. Catena, 173, 494-504.

[13]   Masumian, A., Naghdi, R., Zenner, E.K., Nikooy, M. and Lotfalian, M. (2017) Comparison of Different Erosion Control Techniques in the Hyrcanian Forest in Northern Iran. Journal of Forest Science, 63, 549-554.

[14]   Solgi, A., Naghdi, R., Labelle, E.R., Behjou, F.K. and Hemmati, V. (2019) Evaluation of Different Best Management Practices for Erosion Control on Machine Operating Trails. Croatian Journal of Forest Engineering: Journal for Theory and Application of Forestry Engineering, 40, 319-325.

[15]   Cerdà, A., Keesstra, S.D., Rodrigo-Comino, J., Novara, A., Pereira, P., Brevik, E., Giménez-Morera, A., Fernández-Raga, M., Pulido, M., Di Prima, S. and Jordán, A. (2017) Runoff Initiation, Soil Detachment and Connectivity Are Enhanced as a Consequence of Vineyards Plantations. Journal of Environmental Management, 202, 268-275.

[16]   Meyer, L.D. (2017) Rainfall Simulators for Soil Erosion Research. In: Soil Erosion Research Methods, Routledge, Abingdon-on-Thames, 83-104.

[17]   Abrantes, J.R., Prats, S.A., Keizer, J.J. and de Lima, J.L. (2018) Effectiveness of the Application of Rice Straw Mulching Strips in Reducing Runoff and Soil Loss: Laboratory Soil Flume Experiments under Simulated Rainfall. Soil and Tillage Research, 180, 238-249.

[18]   Patin, J., Mouche, E., Ribolzi, O., Sengtahevanghoung, O., Latsachak, K.O., Soulileuth, B., Chaplot, V. and Valentin, C. (2018) Effect of Land Use on Interrill Erosion in a Montane Catchment of Northern Laos: An Analysis Based on a Pluri-Annual Runoff and Soil Loss Database. Journal of Hydrology, 563, 480-494.

[19]   Wang, L., Fang, N.F., Yue, Z.J., Shi, Z.H. and Hua, L. (2018) Raindrop Size and Flow Depth Control Sediment Sorting in Shallow Flows on Steep Slopes. Water Resources Research, 54, 9978-9995.

[20]   Guo, Y. and Yu, X. (2019) Analysis of Surface Erosion of Cohesionless Soils Using a Three-Dimensional Coupled Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) Model. Canadian Geotechnical Journal, 56, 687-698.

[21]   Persichillo, M.G., Meisina, C., Cavalli, M., Crema, S. and Bordoni, M. (2016) Understanding the Relationship between Sediment Connectivity and Spatio-Temporal Landscape Changes in Two Small Catchments. Geophysical Research Abstracts. The EGU General Assembly, 3070.

[22]   Zhou, Z. and Zhang, X.J. (2019) Impacts of Sediment Load and Size on Rill Detachment under Low Flow Discharges. Journal of Hydrology, 570, 719-725.

[23]   Dada, P.O.O., Adeyanju, O.R., Adeosun, O.J. and Adewumi, J.K. (2016) Effects of Soil Physical Properties on Soil Loss Due to Manual Yam Harvesting under a Sandy Loam Environment. International Soil and Water Conservation Research, 4, 121-125.

[24]   Barai, V.N., Satpute, G.U. and Atre, A.A. (2018) Effect of Rainfall Intensity on Directional Splash Erosion in Clay Loam Soil under Simulated Condition. International Journal of Bio-Resource and Stress Management, 9, 13-16.

[25]   Fu, B., Merritt, W.S., Croke, B.F., Weber, T.R. and Jakeman, A.J. (2019) A Review of Catchment-Scale Water Quality and Erosion Models and a Synthesis of Future Prospects. Environmental Modelling & Software, 114, 75-97.

[26]   Sandercock, P., Hooke, J., De Baets, S., Poesen, J., Meerkerk, A., van Wesemael, B. and Cammeraat, L.H. (2017) Effectiveness of Plants and Vegetation in Erosion Control and Restoration. In: Combating Desertification and Land Degradation, Springer, Cham, 79-104.

[27]   Lv, J., Luo, H. and Xie, Y. (2019) Effects of Rock Fragment Content, Size and Cover on Soil Erosion Dynamics of Spoil Heaps through Multiple Rainfall Events. Catena, 172, 179-189.

[28]   Cheng, Y., Li, P., Xu, G., Li, Z., Wang, T., Cheng, S., Zhang, H. and Ma, T. (2018) The Effect of Soil Water Content and Erodibility on Losses of Available Nitrogen and Phosphorus in Simulated Freeze-Thaw Conditions. Catena, 166, 21-33.

[29]   Martínez-Mena, M., Carrillo-López, E., Boix-Fayos, C., Almagro, M., Franco, N.G., Díaz-Pereira, E., Montoya, I. and de Vente, J. (2020) Long-Term Effectiveness of Sustainable Land Management Practices to Control Runoff, Soil Erosion, and Nutrient Loss and the Role of Rainfall Intensity in Mediterranean Rainfed Agroecosystems. Catena, 187, Article ID: 104352.

[30]   Kiani-Harchegani, M., Sadeghi, S.H. and Asadi, H. (2018) Comparing Grain Size Distribution of Sediment and Original Soil under Raindrop Detachment and Raindrop-Induced and Flow Transport Mechanism. Hydrological Sciences Journal, 63, 312-323.

[31]   Qambrani, N.A., Rahman, M.M., Won, S., Shim, S. and Ra, C. (2017) Biochar Properties and Eco-Friendly Applications for Climate Change Mitigation, Waste Management, and Wastewater Treatment: A Review. Renewable and Sustainable Energy Reviews, 79, 255-273.

[32]   Lu, J., Zheng, F., Li, G., Bian, F. and An, J. (2016) The Effects of Raindrop Impact and Runoff Detachment on Hillslope Soil Erosion and Soil Aggregate Loss in the Mollisol Region of Northeast China. Soil and Tillage Research, 161, 79-85.

[33]   Kavian, A., Mohammadi, M., Cerda, A., Fallah, M. and Abdollahi, Z. (2018) Simulated Raindrop’s Characteristic Measurements. A New Approach of Image Processing Tested under Laboratory Rainfall Simulation. Catena, 167, 190-197.

[34]   Naves, J., Anta, J., Suárez, J. and Puertas, J. (2020) Development and Calibration of a New Dripper-Based Rainfall Simulator for Large-Scale Sediment Wash-Off Studies. Water, 12, 152.

[35]   Wischmeier, W.H. and Smith, D.D. (1978) Predicting Rainfall Erosion Losses. Handbook No. 537, USDA, Washington DC.

[36]   Geng, R., Zhang, G.H., Ma, Q.H. and Wang, H. (2017) Effects of Landscape Positions on Soil Resistance to Rill Erosion in a Small Catchment on the Loess Plateau. Biosystems Engineering, 160, 95-108.

[37]   Wilken, F., Baur, M., Sommer, M., Deumlich, D., Bens, O. and Fiener, P. (2018) Uncertainties in Rainfall Kinetic Energy-Intensity Relations for Soil Erosion Modelling. Catena, 171, 234-244.

[38]   Singh, M. and Hartsch, K. (2019) Basics of Soil Erosion. In: Watershed Hydrology, Management and Modeling, CRC Press, Boca Raton, 1-61.

[39]   Vaezi, A.R., Ahmadi, M. and Cerdà, A. (2017) Contribution of Raindrop Impact to the Change of Soil Physical Properties and Water Erosion under Semi-Arid Rainfalls. Science of the Total Environment, 583, 382-392.

[40]   Fernández-Raga, M., Campo, J., Rodrigo-Comino, J. and Keesstra, S.D. (2019) Comparative Analysis of Splash Erosion Devices for Rainfall Simulation Experiments: A Laboratory Study. Water, 11, 1228.