Red soil terrace terrace wall stability maintaining method based on root system structure

Abstract

The invention discloses a red soil terrace terrace wall stability maintaining method based on a root system structure. The stability maintaining method comprises the following steps that planted alopecurus aequalis and dicranopteris pedata are transplanted, the ladder walls are divided into multiple rows, the alopecurus aequalis and the dicranopteris pedata in each row are alternately planted, the distance between different plants is kept to be 12-17 cm, and the distance between the same plants is 25-30 cm; watering is conducted once every 3-4 days, and growth of plant roots is promoted. By adopting the amur foxtail and dicranopteris pedata composite planting mode, firstly, the selected grass seeds have the characteristics of being humid, developed in root system, high in soil conservation and the like; secondly, the shear capacity and the residual shear strength of the ladder wall root soil complex are improved; thirdly, the terrace ladder wall stability is improved; fourthly, the landscape effect of the terrace and the ladder wall is improved.

Description

technical field [0001] The invention relates to the technical field of soil stability maintenance, in particular to a method for maintaining the stability of terraced walls of red soil terraces based on root system structure. Background technique [0002] Terraces are an important agricultural pattern in many parts of the world and provide the main source of livelihood for tens of millions of mountain people. Terraces can effectively control soil erosion and restore degraded hillside ecosystems, protect agricultural production and maintain food security. However, the phenomenon of terraced field collapse is common, especially in areas with rich water and heat resources and great potential for biological production. The collapse of terraced fields causes large-scale movement of soil, which in turn threatens people's lives, property, and food security. [0003] As the vulnerable and sensitive area of ​​the terrace, the terrace wall plays a key role in maintaining the stabilit...

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Problems solved by technology

The root system of herbaceous plants enhances the effect of water and soil retention mainly through the "reinforcement" effect of the fine roots distributed in the shallow layer and the "anchor" effect of the thick roots deeply penetrated into the soil layer, which can significantly enhance the soil cohesion of the root-soil complex, and then Enhance the anti-scour and anti-erosion properties of the soil, and increase the stability of the root-soil complex as the number of roots, root length, and root surface area increase, but in actual life, due to differences in plant species, randomness of root distribution, and climate, soil, Due to the particularity of hydrology and other environments, it is impossible to quantitatively analyze the relationship between plant roots and the root-soil complex of the step wall, and it is impossible to clarify the role of the roots of different herbaceous plants on the stability of the step wall, and there is no way to choose the best plant species to achieve the best. Ecological slope protection

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