Method for preventing water loss and soil erosion and method for building non-leakage water reservoir
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A reservoir, soil and water technology, applied in the fields of botanical equipment and methods, horticultural methods, construction, etc., can solve the problems of flushing, water and soil cannot be separated, etc.
Active Publication Date: 2008-10-01
曾兆仁
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Problems solved by technology
[0002] At present, the annual loss of fertile soil of non-renewable resources can be divided into ditch soil loss, surface soil loss, and river bank soil loss. The method of erosion has always been afforestation, but the deep trenches of more than 6-10 meters in the Loess Plateau cannot be controlled by afforestation. When floods wash away, trees and roots will be uprooted by sediment and floods , water and soil cannot be separated, and the soil is washed away. So far, there is no practical method for preventing soil erosion in ditches
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Embodiment 1
[0005] Embodiment 1, the prevention and control method of ditch soil loss: be to build several dams at the source of water and soil loss, and build several dams in the section of serious collapse and loss of water and soil, increase the height and width of interception dams in proportion, and open water channels on both sides of the dam body, 3 meters high The dam is opened at the mouth of the waterway at 2.5 meters, and the water is put into the waterway. The dam is built with a ditch width of 10 meters as the standard, and every increase of 5 meters in the ditch width is a dam increase level, such as:
[0006] a. A 10-meter-wide ditch is built with a dam crest of 1.5 meters wide, a dam bottom of 6 meters wide, and a dam height of 3 meters. There is a waterway opening at 2.5 meters, 0.5 meters deep, 0.5 meters wide, and the outer wall of the waterway is 0.5 meters wide.
[0007] b. 11-15 meters wide ditch damming, dam crest 2 meters wide (plus 0.1 meters per meter), dam botto...
Embodiment 2
[0012] Embodiment 2, the control method of surface soil loss is the method for planting control belts with hemp, two rows of hemp are planted at the lower end of each field, high stubble is left after autumn, and hemp seeds are regrowth and replanted in the second year, after a few years The hemp stubble forms a grid-like filter screen. Several families plant the same species and build a control zone together, so that the surface soil will not be lost.
Embodiment 3
[0013] Embodiment 3, the prevention and control method of river bank soil loss is to plant various willows densely, the roots of willows are very long, and when the flood washes away, the roots of the soil on the side of the water are washed away, and the roots are blocked to one side, and the water cannot remove the inside If the soil is washed away, the willow trees will not fall down, and the shore soil will remain forever. Not only does it prevent the erosion of the shore soil, but weaving willows is also a good material for sideline work.
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Abstract
The invention relates to a method for preventing and controlling soil erosion and constructing small reservoir without seepage, which includes a ditch earth running off preventing and controlling method, a top soil running off preventing and controlling method, a bank earth running off preventing and controlling method and a method for constructing small reservoir without seepage. The ditch earth running off preventing and controlling method constructs a plurality of dams at the soil erosion source and the place with serious cave-in collapse running off water and soil, heightens and widens the interception dams proportionally, water channels are opened at both sides of the bam body; the top soil running off preventing and controlling method is a method using wires to plant a preventing and controlling strap; the bank earth running off preventing and controlling method compactly plants various willows; and the method for constructing small reservoir without seepage additionally sets up an outlet gate at the interception bam body, and lay a plastic film at the bottom of the reservoir. The method is easy to carry out, is convenient for spreading; has good soil erosion preventing and controlling effect; genuinely changes water trouble into water conservancy; and solves the puzzling question for several years that the soil erosion is unable to prevent and control.
Description
Technical field: [0001] The invention relates to a method for preventing and controlling water and soil loss and building a small impermeable reservoir. Background technique: [0002] At present, the annual loss of fertile soil of non-renewable resources can be divided into ditch soil loss, surface soil loss, and river bank soil loss. The method of erosion has always been afforestation, but the deep trenches of more than 6-10 meters in the Loess Plateau cannot be controlled by afforestation. When floods wash away, trees and roots will be uprooted by sediment and floods , water and soil cannot be separated, and the soil is washed away. So far, there is no practical method for preventing and controlling ditch soil erosion. Invention content: [0003] The purpose of the present invention is to overcome above-mentioned shortcoming, provide a kind of method of preventing and controlling water and soil loss and building impermeable small reservoir, it can separate water and soi...
Claims
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Application Information
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