Method for providing shelter from wind and for fixing sand in sandified grassland of horqin

By combining mechanical and biological sand barriers with herbaceous plant planting in the Horqin desertified grassland, the specific problems of windbreak and sand fixation in the Horqin desertified grassland were solved, the survival rate and coverage of plants were improved, and effective windbreak and sand fixation effects were achieved.

WO2026137810A1PCT designated stage Publication Date: 2026-07-02MENGCAO ECOLOGICAL ENVIRONMENT (GRP) CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
MENGCAO ECOLOGICAL ENVIRONMENT (GRP) CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Existing technologies lack targeted methods for windbreak and sand fixation in the management of desertified grasslands in Horqin, and the poor adaptability of plants leads to unsatisfactory management results.

Method used

A combination of mechanical sand barriers, biological sand barriers, and herbaceous plant seed sowing was adopted. Mechanical sand barriers were laid using materials such as reed segments, yellow willow, and sand willow branches, and shrubs such as yellow willow and sea buckthorn, as well as plants such as sheep grass and oats, to form a composite sand barrier. By combining the cold and drought resistance and carbon and nitrogen fixation capabilities of local native species, the survival rate and coverage of plants were improved.

Benefits of technology

It has achieved efficient windbreak and sand fixation of the Horqin desert grassland, with a plant survival rate of up to 81.5% and a coverage of up to 62.1%, effectively reducing shifting sand and soil erosion.

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Abstract

Provided in the present invention is a method for providing shelter from the wind and for fixing sand in a sandified grassland of Horqin, which method involves: S1, using an automatic sand barrier laying device to lay a mechanical sand barrier in the sandified grassland of Horqin, wherein a material for the mechanical sand barrier is one of or any combination of reed segments, straw mats, rice straw, Salix gordejevii, and Salix psammophila branches; S2, planting biological sand barriers inside the mechanical sand barrier to form a composite sand barrier, wherein the biological sand barriers are shrubs, and the shrubs are a combination of Salix gordejevii, Hippophae rhamnoides, Caragana microphylla, Caragana korshinskii, Corethrodendron fruticosum, Lespedeza davurica, and Artemisia halodendron; and S3, spreading seeds of herbaceous plants between the biological sand barriers, wherein the herbaceous plants comprise leguminous plants, gramineous plants and annual plants, and the ratio, by plant number, of leguminous plants : gramineous plants : annual plants is 3 : 5 : 1. By means of the technical solution of the present invention, the plant survival rate can reach up to 81.5%, and the coverage can reach up to 62.1%.
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