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The Effects of Spatial Configurations of Simulated Shrubs on Wind-proof Effectiveness
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  • Xia Pan,
  • Zhenyi Wang,
  • Yong Gao,
  • Zhengcai Zhang,
  • Xiaohong Dang,
  • Zhongjv Meng
Xia Pan
Inner Mongolia Agricultural University
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Zhenyi Wang
Inner Mongolia Agricultural University
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Yong Gao
Inner Mongolia Agricultural University
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Zhengcai Zhang
Chinese Academy of Sciences Lanzhou Branch
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Xiaohong Dang
Inner Mongolia Agricultural University
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Zhongjv Meng
Inner Mongolia Agricultural University
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Abstract

Maximizing the benefits of windbreaks requires a thorough understanding of the physical interaction between the wind and the barrier. In this experiment, a profiling set of Pitot tubes was used to measure the airflow field and wind velocity of simulated shrubs in a wind tunnel. The effects of form configurations and row spaces of simulated shrubs on wind-proof effectiveness were in-depth studied. We come to the following results: the weakening intensity of hemisphere-shaped and broom-shaped shrubs on wind velocity was mainly reflected below 2 cm in the root and 6-14 cm in the middle-upper, respectively, while the wind-proof effect of the spindle-shaped shrubs at the canopy (0.2-14 cm height) was the best. Besides, the simulated shrubs under 26.25 cm had the best protection effect on the wind velocity. Moreover, the designed windbreaks with Nitraria tangutorum, more effectively reduced the wind velocity among the windbreak compared to behind the windbreak. In the wind control system, the hemisphere-shaped windbreaks should be applied as near-surface barriers, and the windbreaks of broom-shaped and spindle-shaped can be used as a sheltered forest. The results could offer theoretical guidelines on how to arrange the windbreaks for preventing wind erosion in the most convenient and efficient ways.