Curve Numbers for Olive Orchard Catchments: Case Study in Southern Spain

作者: Encarnación V Taguas , Yongping Yuan , Feliciana Licciardello , Jose Alfonso Gómez , None

DOI: 10.1061/(ASCE)IR.1943-4774.0000892

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摘要: AbstractThe curve number (CN) method is widely applied around the world to estimate direct runoff and corresponding hydrograph of a rainfall event. However, there no information on its performance in olive orchards catchment scale. In this work, CN was three small catchments southern Spain with different soil types, topography, management. A rainfall-runoff data set six years used test usefulness accuracy reference parameterization (CNs) initial abstraction (Ia). medians were between 83 87. Classical equations based use 10th, 50th, 90th percentiles for determining antecedent moisture content (AMC) provided very good results two catchments. third catchment, most arid hydrological pattern (annual <400  mm) impervious areas parental material, poor achieved. addition, cumulative precipitatio...

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