Ecological slope protection method for protecting side slope of silty soil ditch by using grass mat

Abstract

The invention provides an ecological slope protection method for protecting a side slope of silty soil ditch by using a grass mat, belonging to the technical field of side slope protection and ecological slope protection of saline-alkali soil improved regions. The method comprises a grass mat layer part and a grass plant slope protection part. The method comprises the steps of: (1) flattening the slope surface; (2) spreading the grass seeds; (3) paving a grass mat; and (4) fixing the grass mat with wood nails. In the method, the grass seeds are spread only above the normal water level so as to meet the requirement of the discharge capacity below normal water level on the side slope roughness. Moreover, in the method, the grass mat is required to be tiled upwards to the slope top from the position 20cm below the normal water level so as to reduce the scouring damage of the side slope around the normal waterline caused by the water level fluctuation. Through the invention, on the whole, the soil layer is protected relatively well to realize the anti-scouring function on one hand; and on the other hand, the evaporation of soil particles can be greatly reduced; thus in the region with relatively low mineralization degree, a water and moisture holding function is realized; and in the region with relatively high mineralization degree, inhibition on salt accumulation is facilitated. The method can be used as an effective measure for improving the saline-alkali soil.

Description

technical field [0001] The invention belongs to the technical field of water and soil conservation engineering, and in particular relates to an ecological slope protection method of a silt soil ditch side slope with straw mat. Background technique [0002] Open ditch drainage is currently the most commonly used drainage method in farmland drainage, but the stability of drainage channel slopes has been difficult to solve, especially the slopes in silty soil areas, generally have poor integrity, lack of stability, and are often affected by raindrops. Severe erosion and runoff erosion can easily cause water and soil erosion, channel siltation and other problems. In recent years, in response to this problem, methods such as replacing foundation soil, slowing down slopes, masonry slope protection, concrete slope protection, planting red willows, and building shafts on both sides of the drainage ditch have been used to protect the slope of the drainage ditch. Both methods have th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to effectively protect the side slope of the drainage channel in the silty soil area, improve the overall structure and stability of the side slope, and avoid the side slope from being splashed by raindrops The damage caused by erosion and runoff erosion overcomes th

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