Soil-fixing and Grass-planting Method on Gravel Beach in River Bank

Abstract

The invention provides a soil fixing and grass planting method on a riparian zone gravel bottomland. The method comprises the following steps that a pit is dug on the riparian zone gravel bottomland; an outer ring and an inner ring are sequentially placed in the pit along the pit wall; soil is filled in the inner ring, a mixture of the soil and soil stabilizers is filled between the inner ring and the outer ring, and crushed gravel is filled between the outer ring and the pit wall; the inner ring and the outer ring are pulled out, and soil fixing plants are planted in the soil filled in the inner ring. According to the method, the steps are simple, the needed materials are less, four layers of protection systems for fixing the soil are established through the design of the inner ring and the outer ring, and scouring of rainwater or river water can be resisted to the maximum extent; meanwhile, the vegetation recovery area is large, and the greening effect is good.

Description

technical field [0001] The invention relates to the field of soil remediation, in particular to a soil-fixing and grass-planting method on gravel beaches along river banks. Background technique [0002] In the late 20th century, with the rapid increase of population and the development of industrial and agricultural production, the ecological environment, which is the most important river ecosystem in nature, was seriously threatened. As an important part of the river ecosystem, the riparian zone includes the river bed between the high and low water levels and the zone above the high water level until the influence of the river water completely disappears. Its special location makes it rich in wildlife resources, water resources , climate resources and tourism resources. Under the dual impact of land and water systems, the riparian zone has many functions such as increasing biodiversity and ecosystem productivity, controlling and protecting water and soil pollution, adjusti...

AI Technical Summary

Problems solved by technology

[0005] Although the method of porous continuous greening concrete vegetation restoration is the only good method measured in the field, its production process is complicated. Porous continuous concrete not only needs to be poured, but also needs to be maintained, and then the pores are filled and the surface soil is covered. The cycle is too long , the workload is heavy, and the production cost is not low

At the same time, concrete itself is a hardened soil-fixing material. Although it is porous, its impact on the natural environment is still unclear.

According to research, it can be known that the porosity of porous continuous greening concrete is 25% to 40%, so the actual greening area is limited, and high-density greening effect cannot be achieved.

The large amount of material required is also one of the disadvantages of this method

Finally, in the process of surface soil covering, the surface soil cannot be protected, and it is likely to be washed away by water flow, while the exposed porous continuous greening concrete cannot achieve the expected vegetation restoration effect