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Estimating RUSLE’s rainfall factor in the part of Italy with a Mediterranean rainfall regime
Monte Pino Naturalistic Observatory, Contrada Monte Pino, 82100 Benevento, Italy
E-mail: nazdiod@tin.it
Abstract. The computation of the erosion index (EI), which is basic to the determination of the rainfall-runoff erosivity factor R of the Revised Universal Soil Loss Equation (RUSLE), is tedious and time-consuming and requires a continuous record of rainfall intensity. In this study, a power equation(r2 = 0.867) involving annual erosion index (EI30-annual) in the Mediterranean part of Italy is obtained. Data from 12 raingauge stations are used to derive and then test a regional relationship for estimating the erosion index from only three rainfall parameters. Erosivity rainfall data derived from 5 additional stations are used for validation and critical examination. The empirical procedures give results which compare satisfactorily with relationships calibrated elsewhere.
Keywords: erosion index, rainfall, erosivity, Revised Universal Soil Loss Equation
Final Revised Paper (PDF, 588 KB)
Citation: Diodato, N.: Estimating RUSLE’s rainfall factor in the part of Italy with a Mediterranean rainfall regime, Hydrol. Earth Syst. Sci., 8, 103-107, 2004. Bibtex EndNote Reference Manager
