The 30-min rainfall erosivity index (EI30) is commonly used in the Universal Soil Loss Equation for predicting soil loss from agricultural hillslopes. EI30 is calculated from the total kinetic energy and the maximum 30-min rainfall intensity of a storm. Normally, EI30 values are calculated from breakpoint rainfall information taken from continuous recording rain gauge charts, however, in many p...

La erosividad de la lluvia (R) es uno los factores incluidos en Ecuación Universal Pérdida Suelo (USLE) y se define como capacidad potencial para erosionar suelos, cuyo conocimiento fundamental planificación del uso manejo mismos. En el presente trabajo evaluaron dos métodos (USLE-EI30 EI30cor) determinar factor R principales municipios productores piña Valle Cauca, además, analizaron índices F...

rainfall erosivity is the ability of rainfall to detach the soil particles. this study was conducted to evaluate spatial variability of rainfall erosivity indices in khouzestan province. the point data of indices (ei30, aim, ke>1 and onchev indices) in 74 stations were used to generate spatial erosivity maps through deterministic and geostatistical interpolation methods (radial basis functions,...

ity in rainfall erosivity and associated sediment yield. Rainfall erosivity and sediment yield can be measured Rainfall depth within small semiarid watersheds can have high much more cost effectively than runoff, an important spatial variability, but spatial variability in rainfall erosivity, a more direct determinant of sediment yield, has not been quantified. Using consideration when studying...

The highest annual precipitation in Ansai during the past 60 years was observed in 2013. Studying the effects of such extreme annual precipitation on soil erosion can deepen similar research and help predict environmental damage under future extreme rainfall. We selected the runoff plots (area: 4 m × 10 m) of three land-use types: cultivated land (C), wild grassland (W) and switchgrass (S). We ...

A erosividade das chuvas constitui-se uma importante variável no diagnóstico da perda de solos em modelos preditivos. partir do banco dados dos postos pluviométricos Departamento Água e Energia Elétrica (DAEE) objetivou-se estudar os índices (EI30) chuvas, mensais anuais, avaliar a variabilidade espaço-temporal estado São Paulo, nos períodos 1987-2007 1997-2017. Efetuou-se análise estatística d...