Thin sheet flow simulating device
A technology of thin-layer water flow and water flow, which is applied in the direction of measuring devices, flow characteristics, and weighing by removing certain components, can solve the problem of scientifically exploring the mechanism of action of thin-layer water flow chemicals and covering the role of soil and chemicals and other issues to achieve the effects of eliminating the impact of rainfall, reliable scouring, and avoiding excessive scouring
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[0020] The simulated thin-layer water flow device of the present invention is used. The test soil was collected from the surface soil of the sloping farmland in the Dongting Lake Basin, which belongs to the Quaternary red soil. Its mechanical particle composition is 44.95% with a particle size of less than 0.001mm, 3.58% with a particle size greater than 0.05mm, and a particle size between 0.001mm and 0.05mm Between 51.47%. The test soil was collected and air-dried naturally, and then passed through soil sieves with apertures of 5mm and 2mm respectively; the prepared potassium bromide solution of a certain concentration was evenly sprayed on the fine soil passed through the sieve with apertures of 2mm, and fully stirred for later use. Before soil tank 1 is filled with soil, spread permeable gauze on the bottom of soil tank 1 to ensure sufficient water permeability and air permeability of the soil, so as not to increase the water infiltration resistance; Layers of soil are fil...
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