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黄麻土工布可灵活地覆盖并附着于土壤表面,有效地减小雨滴溅蚀,拦截坡面水流,控制土粒移动。试验结果表明:在1次降雨量为20~38mm时,覆盖黄麻土工布可减少5.09L/m2的径流量,在1次降雨量10~38mm,盖布可减少84.9%~98.40%的产沙量。人工降雨条件下,盖布可推迟产流时间3~6min,不同处理的累积径流量、产沙量与时间均呈显著的线性相关,盖布与光板地的曲线斜率相差很大,光板地小区的累积产沙量与时间的曲线斜率为盖布小区的412.79倍。同时,覆盖黄麻土工布还可提高土壤中小于0.002mm的颗粒比例,增加土壤团聚度,并有提高土壤抗剪强度的趋势。
The jute geotextile can be flexibly covered and attached to the surface of the soil, effectively reducing the raindrop splash, intercepting the flow of the slope, and controlling the movement of the soil particles. The test results show that: when a rainfall is 20~38mm, covering the jute geotextile can reduce the runoff of 5.09L/m2, in a rainfall of 10 ~ 38mm, cover can be reduced by 84.9% ~ 98. 40% of sediment production. Under artificial rainfall conditions, the cover cloth can delay the flow time from 3 to 6 minutes. The cumulative runoff, sediment yield, and time for different treatments have a significant linear correlation. The curve slopes of the cover and the light board ground vary widely. The cumulative slope of accumulated sediment production and time is 412.79 times that of Gebu Community. At the same time, covering the jute geotextile can increase the proportion of particles in the soil less than 0.002mm, increase the degree of soil agglomeration, and there is a tendency to increase the shear strength of the soil.