VERIFICA DI IPOTESI E PROCEDURE NELLA STIMA EMPIRICA DELLA PERDITA DI SUOLO PARCELLARE IN UN AMBIENTE MEDITERRANEO

Research output: Contribution to conferenceOther

Abstract

[automatically translated] The water erosion is estimated using empirical approaches has interest in both the scientific and application. In the present survey was conducted an audit of assumptions and procedures adopted in the USLE and models based on USLE scheme for estimating soil loss from plots of bare soil in the experimental area of Sparacia, in Sicily. The soil loss in units of the individual event erosive surface, Ae, is not significantly dependent on the plot length, λ, as the increasing of λ is reduced runoff but grows the concentration of sediments. The Ae values are increasing with the slope of land parcels, s, as the flow coefficient does not vary appreciably with s while the sediment concentration generally increases with increasing s. In conclusion, the investigation has confirmed the importance of an approach that makes it possible to estimate the loss of soil from land on which the stock removal per unit area does not necessarily grow with their length. The reports most widely used to determine the background of the slope erosion plot appear also be used in the Sparacia.
Original languageItalian
Pages119-131
Number of pages13
Publication statusPublished - 2015

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