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Sonic anemometry and sediment traps to evaluate the effectiveness of windbreaks in preventing wind erosion Scientia Agricola
López,Alejandro; Valera,Diego Luis; Molina-Aiz,Francisco Domingo; Lozano,Francisco Javier; Asensio,Carlos.
ABSTRACT The present work analyzes the effectiveness of windbreaks against wind erosion through the study of streamline patterns and turbulent flow by means of sonic anemometry and sediment traps. To this end, windbreaks composed of plastic meshes (7.5 m long and 0.7 m tall) were used. Windbreaks are a good means to reduce wind erosion, as they produce a positive effect on the characteristics of air currents that are related to wind erosion processes. Due to their ease of installation and dismantling, plastic meshes are widely used in areas where they are not required permanently. In our study, the use of a mesh of 13 × 30 threads cm−2 and 39 % porosity resulted in an average reduction of 85 % in face velocity at a height of 0.4 m and a distance of 1 m...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Streamline patterns; Semiarid environment; Turbulent flow; Energy levels; Olive.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000600425
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