Desertified grassland restoration method

Abstract

The invention discloses a desertified grassland restoration method, and belongs to the field of soil remediation. According to the desertified grassland restoration method, during sapling planting, afalse root type pricking-assisting conical net is arranged, and the bottom can be used as a false root of a sapling, so that a plant root system is replaced to absorb certain moisture. The defect thatthe newly planted sapling root system cannot completely adapt to the planting environment is effectively overcome, and the situation that the saplings are dried up and even die due to untimely waterabsorption is avoided. The method improves the survival rate, meanwhile, the root system of the sapling can be effectively guided to partially grow towards the edge of the water storage conical net,and the root system is guided to be attached to a porous attachment fork. Compared with the prior art, the adhesion strength of the root system under the desertified grassland can be effectively improved, the method effectively guarantees that soil of the desertified grassland is not prone to loss when the desertified grassland is subjected to natural phenomena such as wind or rain, meanwhile, themethod effectively guarantees that saplings are not prone to being blown down, the soil fixing effect of the saplings on the desertified grassland is effectively kept, and the remediation effect is obviously improved.

Description

technical field [0001] The invention relates to the field of soil remediation, in particular to a method for remediating sandy grassland. Background technique [0002] Grassland desertification means that the grasslands with sandy surface environment in different climate zones are affected by factors such as wind erosion, water erosion, drought, rodent pests and human improper economic activities, which cause natural grasslands to be damaged to varying degrees, soil is eroded, soil quality is desertified, and soil organic matter content is reduced. , the loss of nutrients and the decline of grassland productivity lead to grassland degradation in non-desert areas, which is mainly characterized by wind and sand activities, similar to desert landscapes. [0003] Generally, the soil with water and soil erosion is relatively loose and the cohesion is not strong. Generally, when the soil is consolidated by plants, during the process of rooting the plants, due to the problem of loo...

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Problems solved by technology

[0003] Generally, the soil with water and soil erosion is relatively loose and the cohesion is not strong. Generally, when the soil is consolidated by plants, during the process of rooting the plants, due to the problem of loose soil, the actual rooting depth is not enough, or the roots have not yet taken root in deep areas. Under the action, the soil will be washed away, making it difficult to fix the soil in the part of the soil that is prone to water and soil loss, or the soil fixation effect is poor

[0004] When restoring desertified grassland, plants with more developed root systems are generally planted, and solidification is carried out through their developed root systems, so as to fix the soil and reduce the effect of water and soil loss. However, sandy grassland is generally loose and the cohesion is not strong. In the early stage, the root system is difficult to attach, resulting in a low growth and survival rate of plants, resulting in an insignificant overall restoration effect on the desertified grassland. At the same time, the humidity of the desertified grassland is low, and it is difficult for the roots of the plants to extend downward in time to absorb water. Planted plants are not replenished with water in time, which further leads to low survival rate

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