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	Provedor de dados Scientia Agricola (1) Ciência e Agrotecnologia (1) Autor Asensio,Carlos (2) García-Navarro,Francisco Jesús (1) Lozano,Francisco Javier (1) López,Alejandro (1) Molina-Aiz,Francisco Domingo (1) Rodríguez-Caballero,Emilio (1) Torres,José Antonio (1) Valera,Diego Luis (1) Mais... Palavra-chave Artificial vision camera (1) Energy levels (1) Olive (1) Semiarid environment (1) Semiarid environment. (1) Soil fertility (1) Streamline patterns (1) Turbulent flow (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2017 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Image analysis to qualify soil erodibility into a wind tunnel Ciência e Agrotecnologia Asensio,Carlos; Rodríguez-Caballero,Emilio; García-Navarro,Francisco Jesús; Torres,José Antonio. ABSTRACT A wind erosion research was carried out in a wind tunnel where sediment samples acquired were studied by an artificial vision camera. These images could be enlarged for further analysis. Image analyses were mainly colorimetry, number of particles present and their size. Soil wind erodibility was analyzed with the image analyses supported by other laboratory results. Anthrosols were the most erodible soils, whereas Calcisols showed the highest resistance to the erosive action of wind. Sediment characteristics show the influence of trap height with decreasing particle size, number and darkness as transport height increases. A two-factor ANOVA for main effect height showed that there were significant differences in particle number and size for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Artificial vision camera; Soil fertility; Semiarid environment.. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000300240 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 Registros recuperados: 2 Primeira ... 1 ... Última

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