Using a modified PAP/RAC model and GIS-for mapping water erosion and causal risk factors: Case study of the Asfalou watershed, Morocco

Tahouri, Jad; Sadiki, Abdelhamid; Karrat, L.; Johnson, Verner Carl; Chan, Ngai Weng; Fei, Zhang; Kung, Hsiang te

doi:10.1016/j.iswcr.2021.07.003

Cited by 10 publications

(8 citation statements)

References 32 publications

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“…A dataset of erosion rate measurements in Morocco was collected from thesis, scientific articles and conference paper published in international journals between 1970 (Heusch, 1970) when the first studies of soil erosion started till date 2021 (Elmalki et al, 2021;Farah et al, 2021bFarah et al, , 2021aLabbaci et al, 2021;M'Barek et al, 2021;Tahouri et al, 2021;Tairi et al, 2021;Taleb et al, 2021;Eloudi et al, 2021;Acharki et al, 2022) and were collected, classified and evaluated. This research was performed on "Science direct", "Springer", "Google", "Google scholar", "Researchgate" and academic libraries.…”

Section: Data Collection Using Meta-analysismentioning

confidence: 99%

Soil water erosion assessment in Morocco through modeling and fingerprinting applications: A review

Lamane

Moussadek

Baghdad

et al. 2022

Heliyon

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Section: Data Collection Using Meta-analysismentioning

confidence: 99%

Soil water erosion assessment in Morocco through modeling and fingerprinting applications: A review

Lamane

Moussadek

Baghdad

et al. 2022

Heliyon

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“…IntErO is also a practical tool for qualitative erosion assessment. Previous studies have shown the importance of qualitative and holistic assessment methods for erosion prediction in risk mitigation measures in North African landscapes [32,33]. The qualitative method differs from the quantitative method in that it assigns weights to geographical units corresponding to soil erosion intensity [34].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Erosion and Outflow Intensity in the Rif Region under Different Land Use and Land Cover Scenarios

Ouallali,

Kader,

Bammou

et al. 2024

Land

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The port of Tangier Med is essential due to its strategic location, as it is an important trading center linking Europe, North America, and Africa. However, the increased rates of downstream sediment transportation put pressure on the sustainable future of the port. Thus, assessing the existing erosion rates and future improvement scenarios is imperative for planning sustainable management at the catchment level. We utilize the Erosion Potential Model (EPM) combined with the Intensity of Erosion and Outflow (IntErO) algorithm to assess the erosion and outflow intensity and to distinguish the sediment-producing areas in the R’mel watershed. The port’s proximity at the bottom of the slope opposite the R’mel Dam is relevant in this context. Initial results show an average erosion rate of 13 t/ha/year. Quarry operations were identified as the primary sediment source, as indicated by the factors contributing to erosion. The qualitative PAP/RAC (Priority Actions Program/Regional Activity Center) model was used to assess the development trends in the watershed, confirming a clear tendency toward irreversible degradation in the quarry areas. Considering that the mined carbonate lithology represents 23.77% of the total area of the catchment, the situation in the region could deteriorate if quarry operations continue. The simulation of quarry rehabilitation scenarios through land use and land cover change (LULC) with IntErO shows that reforestation of quarries can significantly reduce erosion rates (4.78 t/ha/year) compared to their conversion to agricultural land. This study underlines the effectiveness of IntErO, based on the EPM model, in quickly and effectively mapping and quantifying water erosion.

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“…It allows for the presentation of erosive states, the dynamics of water erosion processes, and the assessment of risk trends at different scales in a watershed. Many studies have been conducted on water erosion using the consolidated PAP/RAC approach [42][43][44][45][46][47][48][49], which aims to integrate the anthropogenic parameter by analyzing its behavior with the environment. These studies have demonstrated the reliability of the PAP/RAC method using GIS (Geographic Information Systems) and RS (Remote Sensing) technology, which can process spatial data regardless of location and scale [50][51][52][53][54][55][56][57].…”

Section: Introductionmentioning

confidence: 99%

Integrating Erosion Potential Model (EPM) and PAP/RAC Guidelines for Water Erosion Mapping and Detection of Vulnerable Areas in the Toudgha River Watershed of the Central High Atlas, Morocco

Elbadaoui

Mansour

Ikirri

et al. 2023

Land

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This study aimed to evaluate the extent and severity of water erosion in the Toudgha river catchment in the Central High Atlas of Morocco using two different erosion models, the Erosion Potential Model (EPM) and the Priority Actions Programme/Regional Activity Centre (PAP/RAC) model. From the modeling results, the catchment was affected by varying degrees of erosion, ranging from “very slight” to “excessive”, with different locations identified under each model. The very high erosion areas were located in the extreme northwest of the catchment area for both of the applied models, covering 9.65% (according to PAP/RAC) and 8.56% (EPM) of the total area primarily driven by factors such as intense rainfall events, limited vegetation cover, high soil erodibility due to low organic matter content and coarser soil texture, and human activities such as overgrazing and land use changes, which exacerbate the effects of these natural factors on water erosion in these semi-arid areas. The study’s findings suggest that erosion is a significant concern in these environmental areas and provide valuable information for designing effective erosion control measures and guiding soil and environmental management practices. Both models effectively simulated the erosion phenomenon and provided useful tools for soil and environmental management. The EPM model can be used to design effective erosion control measures, while the PAP/RAC model can be used to develop a comprehensive strategy for the sustainable management of the catchment area. These results have implications for the implementation of effective erosion control measures in mountainous watersheds and highlight the need for further research in this area.

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Using a modified PAP/RAC model and GIS-for mapping water erosion and causal risk factors: Case study of the Asfalou watershed, Morocco

Cited by 10 publications

References 32 publications

Soil water erosion assessment in Morocco through modeling and fingerprinting applications: A review

Soil water erosion assessment in Morocco through modeling and fingerprinting applications: A review

Assessment of the Erosion and Outflow Intensity in the Rif Region under Different Land Use and Land Cover Scenarios

Integrating Erosion Potential Model (EPM) and PAP/RAC Guidelines for Water Erosion Mapping and Detection of Vulnerable Areas in the Toudgha River Watershed of the Central High Atlas, Morocco

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