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| A new ecological control method for Pisha sandstone based on hydrophilic polyurethane |
Zhishui LINAG1, Zhiren WU2, NOORI Mohammad3, Caiqian YANG1,*( ), Wenyi YAO4 |
1 School of Civil Engineering, Southeast University, Nanjing 210096, China
2 School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
3 International Institute for Urban Systems Engineering, Southeast University, Nanjing 210096, China
4 Key Laboratory of Soil and Water Loess Process and Control on Loess Plateau of Ministry of Water Resource, Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China |
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Abstract The Pisha sandstone-coverd area is among the regions that suffer from the most severe water loss and soil erosion in China and is the main source of coarse sand for the Yellow River. This study demonstrated a new erosion control method using W-OH solution, a type of hydrophilic polyurethane, to prevent the Pisha sandstone from water erosion. We evaluated the comprehensive effects of W-OH on water erosion resistance and vegetation-growth promotion through simulated scouring tests and field demonstrations on the Ordos Plateau of China. The results of simulated scouring tests show that the water erosion resistance of W-OH treated area was excellent and the cumulative sediment yield reduction reached more than 99%. In the field demonstrations, the vegetation coverage reached approximately 95% in the consolidation-green area, and there was almost no shallow trenches on the entire slope in the treated area. In comparison, the control area experienced severe erosion with deep erosion gullies appeared on the slope and the vegetation coverage was less than 30%. This study illustrated that W-OH treatment can protect the Pisha sandstone from erosion and provide the vegetation seeds a chance to grow. Once the vegetation matured, the effects of consolidation-growth mutual promotion can efficiently and effectively improve the water erosion resistance and ecological restoration.
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Received: 08 May 2017
Published: 22 August 2017
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Corresponding Authors:
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| [1] | Gao W M, Wu Z R, Wu Z S, et al.2011. Study on resistance of wind/sand erosion based on a solidifying composite material of hydrophilic polyurethane. Journal of the Society of Materials Science, Japan, 60(9): 850-855. | | [2] | Li C M, Zhang T T, Wang L J.2015. Mechanical properties and microstructure of alkali activated Pisha sandstone geopolymer composites. Construction and Building Materials, 68: 233-239. | | [3] | Liang Z S, Wu Z R.2016. Performances and mechanism of sand fixation and growth promotion based on modified hydrophilic polyurethane. Transactions of the Chinese Society of Agricultural Engineering, 32(22): 171-177. (in Chinese) | | [4] | Liu J, Shi B, Jiang H T, et al.2011. Research on the stabilization treatment of clay slope topsoil by organic polymer soil stabilizer. Engineering Geology, 117(1-2): 114-120. | | [5] | Ma W M, Zhang X C.2016. Effect of Pisha sandstone on water infiltration of different soils on the Chinese Loess Plateau. Journal of Arid Land, 8(3): 331-340. | | [6] | Ni H B, Zhang L P, Zhang D R, et al.2008. Weathering of Pisha-sandstones in the wind-water erosion crisscross region on the Loess Plateau. Journal of Mountain Science, 5(4): 340-349. | | [7] | Su T, Zhang X C.2011. Effects of EN-1 soil stabilizer on slope runoff hydraulic characteristics of Pisha sandstone stabilized soil. Transactions of the Chinese Society for Agricultural Machinery, 42(11): 68-75. (in Chinese) | | [8] | Wang Y C, Wu Y H, Min D A, et al.2007. Investigation on measures for soil erosion in soft rock Area. Global Seabuckthorn Research & Development, 5(1): 39-44. (in Chinese) | | [9] | Wang Y M, Yang Z C, Chen W W, et al.2005. Strength characteristics and mechanism of loess solidified with new polymer material SH. Chinese Journal of Rock Mechanics and Engineering, 24(14): 2554-2559. (in Chinese) | | [10] | Wu Z R, Yang C Q, Wu Z S, et al. 2009. New technology of desertification control and ecological restoration based on W-OH organic composite curing material national seminar on water and soil conservation. In: Proceedings of the National Symposium on Soil and Water Conservation and Desertification Control and Ecological Rehabilitation. Shanghai, China. 244-252. (in Chinese) | | [11] | Wu Z R, Gao W M, Wu Z S, et al.2011. Synthesis and characterization of a novel chemical sand-fixing material of hydrophilic polyurethane. Journal of the Society of Materials Science, Japan, 60(7): 674-679. | | [12] | Xiao P Q, Yao W Y, Liu H.2014. Research progress and harnessing method of soil and water loss in Pisha sandstone region. Yellow River, 36(10): 92-94. (in Chinese) | | [13] | Yang F S, Cao M M, Li H E, et al.2013. Simulation of sediment retention effects of the single seabuckthorn flexible dam in the Pisha Sandstone area. Ecological Engineering, 52: 228-237. | | [14] | Yang F S, Cao M M, Li H E, et al.2014. Ecological restoration and soil improvement performance of the seabuckthorn flexible dam in the Pisha Sandstone area of Northwestern China. Solid Earth Discussions, 6(2): 2803-2842. | | [15] | Zeng Y E, Qin F C, Yue Y J.2013. Analysis on plant composition and diversity of hippophae forest in sandstone areas of Jungar Banner. Northern Horticulture, 37(22): 98-101. (in Chinese) | | [16] | Zhang K, Xu M Z, Wang Z Y.2009. Study on reforestation with seabuckthorn in the Pisha Sandstone area. Journal of Hydro-Environment Research, 3(2): 77-84. | | [17] | Zhang X P, Wang S J, Li L, et al.2012. Particle simulation on the effect of potassium silicate reinforcement of ancient earthen site soil to reduce wind erosion. Rock and Soil Mechanics, 33(11): 3465-3471. (in Chinese) | | [18] | Zhao X N, Chen X L, Huang J, et al.2014. Effects of vegetation cover of natural grassland on runoff and sediment yield in loess hilly region of China. Journal of the Science of Food and Agriculture, 94(3): 497-503. | | [19] | Zhen Q, Zheng J Y, He H H, et al.2016. Effects of Pisha sandstone content on solute transport in a sandy soil. Chemosphere, 144: 2214-2220. |
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