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Method for restoring vegetation on high and steep slopes by aid of coiled plant materials

A plant roll material and vegetation restoration technology, which is applied in the field of vegetation restoration on high and steep slopes, and can solve the problems of low water retention, fertilizer retention and soil fixation ability of slopes, difficult slope vegetation restoration, and low seed germination rate, etc. problem, to achieve good vegetation recovery effect, reduce the level of management and maintenance in the later stage, and reduce the effect of water management procedures

Active Publication Date: 2015-09-30
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively large slope and high slope height, the ability of the slope to retain water, fertilizer and soil is very low, and it is difficult to restore vegetation on the slope, which not only takes a long period, but also has poor results.
At present, the treatment measures for high and steep slopes mainly include thick-layer base material greening method, guest soil spraying, vegetation concrete slope protection and other methods. The self-weight of the sprayed planting layer cannot resist the rainstorm and the scorching sun, eventually causing gully erosion, sheet erosion, and even the overall collapse of the slope, which not only fails to solve the fundamental problem of soil consolidation, but causes secondary slope damage; The method isolates the connection between vegetation and natural soil and rock, and is restricted by slope angle and slope height, so it cannot cover everything, resulting in a series of problems such as low seed germination rate, small vegetation coverage, and unstable and prone to lodging of plant roots.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Steps:

[0016] 1) Slope cleaning: remove debris on the slope, including pumice and floating soil, and level the slope;

[0017] 2) Anchor construction: mark the position of the anchor and carry out drilling operations. The diameter of the anchor hole is 32mm, the depth of the anchor hole is 400~600mm, the distance between the anchor holes is 1m × 1m, the diameter of the installed anchor is 12mm, and the length of the anchor is 450~550mm. Reserve the anchor rod length 5~7cm, bend the top of the anchor rod, and pour anchoring agent to fix it;

[0018] 3) Hanging net: Lay high-strength reinforced net 1 on the slope in step 2) and fix it on the reserved anchor rod on the slope. The high-strength reinforced net 1 is PVC-coated steel wire mesh, mesh size: 60*80mm , tensile strength ≥ 380Mpa;

[0019] 4) Lay plant rolls: lay plant rolls on the surface in step 3), and fix them on the reserved anchors on the slope; the plant rolls are sold and provided by Sichuan Woeryi E...

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Abstract

The invention discloses a method for restoring vegetation on high and steep slopes by the aid of coiled plant materials. The method includes operation steps of 1), cleaning slope surfaces; 2), constructing anchor rods; 3), hanging nets; 4), laying the coiled plant materials; 5), secondarily hanging nets; 6), fixing the nets and the coiled plant materials; 7), watering and maintaining the slope surfaces. The method has the advantages that the stability of substrates on the slope surfaces can be effectively maintained, the substrates are high in erosion resistance, construction processes are simple, the vegetation can be managed and maintained easily and conveniently in later periods, the slope surfaces can be effectively closed, and weathering and peeling of the slope surfaces can be prevented.

Description

technical field [0001] The invention relates to a method for restoring vegetation, in particular to a method for restoring vegetation on high and steep slopes, and belongs to the technical field of slope restoration. Background technique [0002] High and steep slopes are distributed all over my country. Due to the large slope and high slope height, the slope itself has very low water retention, fertilizer retention and soil fixation capabilities, and it is difficult to restore vegetation on the slope, which not only takes a long period, but also has poor results. At present, the treatment measures for high and steep slopes mainly include thick-layer base material greening method, foreign soil spraying, vegetation concrete slope protection and other methods. The self-weight of the sprayed planting layer cannot resist the rainstorm and the scorching sun, eventually causing gully erosion, sheet erosion, and even the overall collapse of the slope, which not only fails to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20A01G1/00
Inventor 孙海龙李绍才李付斌
Owner SICHUAN UNIV
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