Análisis de la relación entre la conductividad hidráulica efectiva y la curva número bajo dos intensidades de lluvia
The effective hydraulic conductivity (Ke) of the Green Ampt infiltration model and the curve number method (CN), are tools frequently used in runoff and contamination models. The aim of the present work was to analyze the relationship between Ke and CN, parameters calibrated from infiltration tests...
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| Autores principales: | , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa
2018
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| Acceso en línea: | https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/111 |
| Aporte de: |
| Sumario: | The effective hydraulic conductivity (Ke) of the Green Ampt infiltration model and the curve number method (CN), are tools frequently used in runoff and contamination models. The aim of the present work was to analyze the relationship between Ke and CN, parameters calibrated from infiltration tests carried out in the field with a rain simulator, determining in turn the effect of the spatial scale change over this relationship. The work was carried out with infiltration results generated with a rain simulator on agricultural and livestock soils, applying two intensities: 60 and 30 mm h-1. The CN and Ke parameters were calibrated, analyzing the relationship between both. In turn, we worked with the Hec Hms 4.0 model to verify if the spatial scale change modified the CN-Ke relationship previously obtained. In livestock soils there was no significant relationship between CN and Ke. In those with agricultural aptitude, a significant negative linear relationship was observed, which depended on the applied rainfall intensity. It was found that the increase in scale, affected the runoff values estimated by the model, compared to those generated in the field. However, the CN-Ke ratio obtained in small plots, did not vary significantly when was evaluated for a larger área. |
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