Sand barrier with efficient sand fixation and ecological restoration functions and arrangement method

Abstract

The invention discloses a sand barrier with efficient sand fixation and ecological restoration functions. The sand barrier integrally shows as an S shape, the cross section of one side of the sand barrier is a straight edge slope, and the cross section of the other side of the sand barrier is a gradient descending slope; and holes communicating with the bottom are formed in the highest slope of the gradient descending slope. The arrangement mode of the sand barrier is characterized by arranging the sand barrier side by side in a staggered mode with the spacing range of 2-2.5m and the row spacing range of 3-5m. According to the tests for the sand barrier with the efficient sand fixation and ecological restoration functions which are made in Dunhuang, Zhongwei and the like for more than three years, the results show that the quicksand is just pushed forwards by 2-5cm and belongs to be actually fixed, the clay crust naturally taking shape in the vortex is about 3 mm, a large number of annual sandy plants including agriophyllum squarrosum, artemisia songarica schrenk and the like are grown on the surface of the crust, and the number of the annual sandy plants in each sand barrier is about 5-12, so that the growth of the sandy plants not only show that the sand fixation method is successful, but also the wind speed can be reduced by the sandy plants; and after three years, the sandbarrier is still existing in an intact condition and does not need to be constructed again.

Description

technical field [0001] The invention relates to a clay-based sand barrier, in particular to a sand barrier that can effectively slow down the moving speed of quicksand, reduce the wind speed, and has good effects in sand fixation and ecological restoration, and belongs to the technical field of windbreak and sand fixation and the technical field of water and soil conservation. Background technique [0002] Sandstorm hazards include quicksand erosion of farmland, cities, large-scale sandstorms and air pollution, etc. These problems have become major environmental problems worldwide, and have seriously restricted local economic development and environmental improvement, leading to serious population outflows. According to authoritative information from the United Nations, one quarter of the world's land area is threatened by wind and sand erosion, and more than 70% of the world's population is harmed by shifting sand to varying degrees. At present, the total area of ​​the worl...

AI Technical Summary

Problems solved by technology

At present, the clay sand barriers publicly reported include clay crusts, circular sand barriers, etc., but according to their reports, the speed-reducing blocking effect on wind and sand is not very ideal

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