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Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (1): 242-251.DOI: 10.7522/j.issn.1000-694X.2025.00074

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Wind tunnel simulation test of gobi Haloxylon ammodendron windproof efficiency

Xue Zhang1(), Haibing Wang1,2(), Chengxian Liao1, Haoqin Yang1, Yunfei Bai1   

  1. 1.College of Desert Management / Key Laboratory of Wind-sand Physics and Desertification Control Project in Inner Mongolia Autonomous Region,Inner Mongolia Agricultural University,Hohhot 010018,China
    2.Inner Mongolia Hangjin Desert Ecosystem Positioning Research Station,Ordos 017400,Inner Mongolia,China
  • Received:2024-11-13 Revised:2025-03-31 Online:2026-01-20 Published:2026-03-09
  • Contact: Haibing Wang

Abstract:

The analysis of the windbreak efficiency under the combined effect of gobi gravel coverage and different Haloxylon ammodendron configuration can provide a theoretical basis for the construction of windbreak and sand-fixing forest in gobi area. In this paper, the wind tunnel simulation test was carried out on the flow field variation of H. ammodendron forest with two kinds of gravel coverage (6.53% and 43.96%), two kinds of forest belt height (15 cm and 30 cm) and three kinds of forest belt configuration modes (single row, two rows and three rows) under different wind speeds. The results showed that the flow field structures of 15 cm and 30 cm height H.ammodendron forest belts were similar, both of which had a reducing effect on the airflow within the height range of H.ammodendron. Under the same gravel coverage, the wind shadow area and the distance of the wind shadow area of the flow field of the three-row H. ammodendron configuration are larger than those of the single-row and two-row H. ammodendron configurations; gravel coverage of 43.69% and 30 cm height of H. ammodendron forest belt combination than other combinations of contour wind speed line rise significantly increased; the windproof efficiency of single row, two rows and three rows of H. ammodendron configuration reached the maximum value at 0-2 times plant height on the leeward side and then gradually decreased, and the maximum average windproof efficiency was 23.9%, 37.85% and 45.4%, respectively. The height of H. ammodendron increased the windproof efficiency at 3 times plant height on the leeward side of the forest belt, which extended the protection distance.

Key words: gobi, Haloxylon ammodendron, wind speed flow field, windproof efficiency, wind tunnel simulation

CLC Number: