[1]YAN Deren,YUAN Limin,HUANG Haiguang,et al.Study on Windproof Effect of Gauze Sand Barriers on Mobile Sand Dunes in Ulan Buh Desert[J].Research of Soil and Water Conservation,2021,28(02):198-202.
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Study on Windproof Effect of Gauze Sand Barriers on Mobile Sand Dunes in Ulan Buh Desert
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 02
Page number:
198-202
Column:
Public date:
2021-02-06
- Title:
- Study on Windproof Effect of Gauze Sand Barriers on Mobile Sand Dunes in Ulan Buh Desert
- CLC:
- S157.1
- DOI:
- -
- Abstract:
- In order to select suitable gauze sand barriers for control mobile sand, the effect of the gauze sand barrier on sand fixation was studied, and it's the impact on the characteristics of near-surface wind speed was evaluated. The 2 m × 2 m, 4 m × 4 m, 6 m × 6 m grid or 2 m, 4 m, 6 m belt gauze sand barriers were set up in the mobile dunes of Ulan Buh Desert, the wind speed change of the gauze sand barriers was measured by using the HOBO wind speed anemometer. The surface roughness, relative wind speed, and wind protection effectiveness were analyzed. The results showed that the surface roughness of 2 m × 2 m grid gauze sand barriers decreased linearly with increase of wind speed; the gauze sand barrier mainly reduced the wind speed at a height below 30 cm near the surface, and increased the surface roughness; with the increase of wind speed, the change of wind breaking efficiency of gauze sand barriers generally showed the decreasing trend. The 2 m×2 m, 4 m×4 m grids or 2 m, 4 m belt gauze sand barriers set up on the mobile dunes can effectively reduce the near-surface wind speed, increase surface roughness, which has the better windproof performance.
- References:
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Last Update:
2021-02-10