Slope vegetation restoration method suitable for autumn and winter construction

Abstract

The invention relates to a slope vegetation restoration method suitable for autumn and winter construction. The method comprises the following steps of 1, slope finishing; 2, net hanging; 3, anchor reinforcement; 4, vegetative plate erecting; 5, base material spraying; 6, seed layer spraying, wherein plant seeds pending to be sprayed are a mixture of seeds of pioneer species, edificator and groundcovers. By means of seed germination rate tests, when the seed germination rate is 80% or above, mixing is conducted according to the proportion that the dosage of the pioneer species per square meter is 20-100 g, the dosage of the edificator per square meter is 20-60 g, and the dosage of the ground covers per square meter is 10-30 g, the pioneer species adopts one or more of daisies, calceolariaand corychophramus violaceua, the edificator adopts one or more of rhus chinensis, cassia glauca Lam. and magnolia multiflora, and the ground covers adopts one or more of manilagrass, tifdwarf bermudagrass, zoysia tenuifolia, bermudagrass, centipedegrass, stenotaphrum helferi and buffalograss. Accordingly, on the premise that an existing technical process is not changed and the construction costis not increased, a better slope vegetation restoration effect is obtained, and rapid formation of target communities and sustainable development are promoted.

Description

technical field [0001] The invention relates to a slope vegetation recovery method suitable for autumn and winter construction. Background technique [0002] During the construction of the expressway, the mountain body was excavated, and a large number of exposed high and steep slopes were formed along the temporary sidewalk of the wind farm. These slopes have the following characteristics: [0003] (1) The slope is steep, and it is not suitable for people to plant on the slope. The slope of most slopes is i>1:1, some even reach i=1:0.75, some reach i=1:0.5 or more. On this kind of steep slope, people can hardly stand stably, it is not suitable for planting operations on the slope, and the planting of plants is also unstable, and it is difficult to restore vegetation on high and steep slopes. [0004] (2) The soil layer on the slope is thin, so it is not suitable to plant plants directly on the slope. The formation of a stable steep slope requires high compactness of ...

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Problems solved by technology

On this kind of steep slope, people can hardly stand stably, it is not suitable for planting operations on the slope, and the planting of plants is also unstable, and it is difficult to restore vegetation on high and steep slopes

[0004] (2) The soil layer on the slope is thin, so it is not suitable for planting plants directly on the slope

The formation of a stable steep slope requires high compactness of the soil on the slope, but operations such as excavating planting holes and covering soil when planting plants on the slope seriously damage the compactness of the slope soil and make the slope unstable.

[0005] (3) The vegetation restoration project on high and steep slopes has almost no maintenance and management conditions in the later stage

[0006] Based on the above reasons, the commonly used technical measure for vegetation restoration on high and steep slopes is the thick substrate spraying method, but in this process, the key is to choose the plant seeds according to the rules, and only after the plant seeds are selected can they be more targeted. According to the existing established selection method, it is based on the target plant community, that is to say, the type of plant seeds is selected based on the type and distribution results of the hoped-for slope vegetation. However, after construction in this way, the ideal plant community cannot be formed for a long time, resulting in poor vegetation recovery on the slope. Moreover, after the construction, there is no plant cover for a long time, and the rain washes away after the rainfall. The destabilization of the bare slope is caused, the seeds are washed away by the rain, and it is impossible to achieve the ideal slope vegetation restoration effect in the later stage

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