AUTHOR=Luo Xiangying , Li Jinrong , Tang Guodong , Li Yingkun , Wang Ru , Han Zhaoen , Feng Jiaxin , Ren Tingjie TITLE=Interference effect of configuration parameters of vertical sand-obstacles on near-surface sand transport JOURNAL=Frontiers in Environmental Science VOLUME=11 YEAR=2023 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2023.1215890 DOI=10.3389/fenvs.2023.1215890 ISSN=2296-665X ABSTRACT=
This study investigates the impacts of height (H) and porosity (P) on the structural properties of wind-driven sand flux in vertical sunflower straw sand-obstacles. We conducted an experiment on sand transport within barriers of various configurations within a 1 m proximity to the surface. In tandem, we monitored wind velocity and direction within the barriers, analyzed total sand transport rate, sand-blocking effects, and cumulative sediment transport rate heights for various parameter configurations, and devised a best sand transport flux model for use within the sand-obstacle. The efficacy of vertical sunflower stalk sand-obstacles in mitigating sand movement has been demonstrated to fall within the range of 37.26%–92.31%. This study reveals a significant correlation between barrier height and porosity in achieving this effect (