GB/T 16453.5-2008Technical specification for comprehensive control of soil and water conservation - Technique for erosion control of wind erosion (English PDF)

3.2

In the ancient river sandy land in the Yellow River flood area, the wind gap shall be controlled first, the wind source shall be blocked, and measures such as turning over silt for pressing sand and afforestation for sand fixation shall be taken to transform the sandy land into an orchard or farmland.

3.3

In coastal wind-sand damage areas, belts, nets and patches shall be combined to build a comprehensive protection system based on coastal windbreak belts.

4.1 Arrangement method and key areas of sand barriers

4.1.1

Sand barriers are firewood, branches and stems of active sand plants or other materials laid flat or vertically on the ground of wind-eroded sand dunes, so as to increase the roughness of the ground, weaken the wind speed in the surface layer, fix the sand grains on the ground, and slow down and stop the shifting of sand dunes.

4.1.2

In key areas where sand barriers are adopted, for shifting sand dunes and semi-shifting sand dunes, sand barriers shall be adopted to fix sand first to prevent sand dunes from shifting, and then wind prevention and sand fixation forest belts and farmland shelterbelts shall be constructed.

4.2 Classification of sand barriers

4.2.1 Classification by ground distribution

4.2.1.1 Strip sand barriers

sand barriers that are distributed in strips on the ground with the strip direction perpendicular to the main wind direction.

4.2.1.2 Checkerboard (or mesh) sand barriers

sand barriers that are distributed in a checkerboard or mesh shape on the ground, which are mainly used in places where the wind direction is unstable and strong lateral wind appears besides the main wind direction.

4.2.2 Classification by different materials

4.2.2.1 Firewood sand barriers

sand barriers which are mainly made of firewood or crop straws.

4.2.2.2 Clay sand barriers

sand barriers of clay ridges used to press the sand in a few places where the sand layer is shallow or there are alkali beaches near sand dunes.

4.2.2.3

Sand barriers made of pebbles or other materials (e.g. branches and stems of active sand plants).

4.2.3 Classification by the angle between firewood and ground

4.2.3.1 Flat sand barriers

sand barriers with the firewood horizontally flat on the ground which are overlaid with branches and sandy soil or fixed with small wooden stakes.

4.2.3.2 Vertical sand barriers

sand barriers with the firewood laid vertically, partially buried in the sand and partially exposed to the ground.