Rainwater-harvesting permeability-enhancing and evaporation-inhibiting method for improving saline and alkaline lands locally
A saline-alkali land, local technology, applied in the field of saline-alkali land treatment, can solve the problems of insufficient utilization of rainfall resources, large water consumption for rinsing and high cost, and achieve the effects of low renovation cost, elimination of ground runoff and long lasting effect.
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[0017] Embodiment 1, select a piece of saline-alkali land to be improved, draw a square grid according to specific specifications for the saline-alkali land to be improved, the side length of the square can be determined according to actual needs and factors such as precipitation and soil permeability, generally 1-2m; Use a shovel or other tools to dig a pit in each square grid to form a terrain with a low middle and high surroundings in the square grid, and the slope from the surrounding to the middle is consistent, and the transition is uniform, which is conducive to the collection of water to the middle. The lowest position of the soil pit is 5-10cm lower than the surrounding area; use impermeable plastic film to cover each dug grid of the soil pit tightly, and compact the surrounding area with soil; at the position corresponding to the center of the square grid on the plastic film, use soil Drill and other tools open a circular hole with a certain depth and diameter. After ...
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