Title: Isoerodent map (R-factor) for the Isser watershed in Algeria

Authors: Aziz Maaliou; Mohammed Lamine Tighilt; Liatim Mouzai

Addresses: Faculty of Civil Engineering, LEGHYD Laboratory, University of Sciences and Technology Houari Boumediene, PB 32, Bab Ezzouar, Algiers, Algeria ' Faculty of Civil Engineering, University of Science and Technology, Houari Boumediene, 16111, Algeria ' Faculty of Civil Engineering, LEGHYD Laboratory, University of Sciences and Technology Houari Boumediene, PB 32, Bab Ezzouar, Algiers, Algeria

Abstract: The erosive force of the rains is expressed in the rainfall-runoff erosivity factor (R). Rainfall erosivity takes into account the amount and intensity of rainfall, and is most often expressed by the R factor in the USLE model and its revised version, RUSLE. The low availability of data obliges soil erosion modellers to estimate this factor on the basis of rainfall data with low temporal resolution (daily, monthly, annual averages). The aim of this study is to assess the erosivity of rainfall in the Isser watershed in the form of the RUSLE R factor, from the best available datasets. This work represents a cartographic synthesis of the rainfall erosivity index R of the Isser watershed in Algeria. Thus, this study can prove to be interesting when used with the plot of the values of this index and makes it possible to facilitate the study of the risk erosion.

Keywords: watershed; rainfall; erosivity index; R-factor; isoerodent-map; Isser; Algeria.

DOI: 10.1504/IJW.2022.132292

International Journal of Water, 2022 Vol.15 No.2, pp.131 - 147

Received: 13 Apr 2022
Accepted: 24 Oct 2022
Published online: 17 Jul 2023 *

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